%!PS-Adobe-2.0 %%Title: Article_9202.wn - /timbl/hypertext/Journals/ENRAP %%Creator: WriteNow %%CreationDate: Tue Feb 18 09:41:27 1992 %%For: timbl %%DocumentFonts: (atend) %%Pages: 9 1 %%BoundingBox: (atend) %%DocumentPaperSizes: Letter %%Orientation: Portrait %%EndComments %%BeginDocument: /usr/lib/NextStep/printPackage.ps %!PS-Adobe-2.0 %%Title: Printing Package %%EndComments %Version: 2.0 %Copyright: 1988, NeXT, Inc. /__NXdef{1 index where{pop pop pop}{def}ifelse}bind def /__NXbdef{1 index where{pop pop pop}{bind def}ifelse}bind def /UserObjects 10 array __NXdef /defineuserobject{ exch dup 1 add dup UserObjects length gt{ array dup 0 UserObjects putinterval /UserObjects exch def }{pop}ifelse UserObjects exch 3 -1 roll put }__NXbdef /undefineuserobject{UserObjects exch null put}__NXbdef /execuserobject{UserObjects exch get exec}__NXbdef /__NXRectPath{4 2 roll moveto 1 index 0 rlineto 0 exch rlineto neg 0 rlineto closepath}__NXbdef /__NXProcessRectArgs{ 1 index type /arraytype eq{ exch 0 4 2 index length 1 sub{ dup 3 add 1 exch{1 index exch get exch}for 5 1 roll 5 index exec }for pop pop }{exec}ifelse }__NXbdef /rectfill{gsave newpath {__NXRectPath fill} __NXProcessRectArgs grestore}__NXbdef /rectclip{newpath {__NXRectPath} __NXProcessRectArgs clip newpath}__NXbdef /rectstroke{ gsave newpath dup type /arraytype eq{dup length 6 eq}{false}ifelse{ {gsave __NXRectPath null concat stroke grestore} dup length array cvx copy dup 2 4 -1 roll put __NXProcessRectArgs }{{__NXRectPath stroke} __NXProcessRectArgs}ifelse grestore }__NXbdef /xyshow{ 0 1 3 index length 1 sub{ currentpoint 4 index 3 index 1 getinterval show 3 index 3 index 2 mul 1 add get add exch 3 index 3 index 2 mul get add exch moveto pop }for pop pop }__NXbdef /xshow{ 0 1 3 index length 1 sub{ currentpoint 4 index 3 index 1 getinterval show exch 3 index 3 index get add exch moveto pop }for pop pop }__NXbdef /yshow{ 0 1 3 index length 1 sub{ currentpoint 4 index 3 index 1 getinterval show 3 index 3 index get add moveto pop }for pop pop }__NXbdef /arct{arcto pop pop pop pop}__NXbdef /setbbox{pop pop pop pop}__NXbdef /ucache{}__NXbdef /ucachestatus{mark 0 0 0 0 0}__NXbdef /setucacheparams{cleartomark}__NXbdef /uappend{systemdict begin cvx exec end}__NXbdef /ueofill{gsave newpath uappend eofill grestore}__NXbdef /ufill{gsave newpath uappend fill grestore}__NXbdef /ustroke{ gsave newpath dup length 6 eq {exch uappend concat}{uappend}ifelse stroke grestore }__NXbdef /__NXustrokepathMatrix dup where {pop pop}{matrix def}ifelse /ustrokepath{ newpath dup length 6 eq{ exch uappend __NXustrokepathMatrix currentmatrix exch concat strokepath setmatrix }{uappend strokepath}ifelse } __NXbdef /upath{ [exch {/ucache cvx}if pathbbox /setbbox cvx {/moveto cvx}{/lineto cvx}{/curveto cvx}{/closepath cvx}pathforall]cvx } __NXbdef /setstrokeadjust{pop}__NXbdef /currentstrokeadjust{false}__NXbdef /selectfont{exch findfont exch dup type /arraytype eq {makefont}{scalefont}ifelse setfont}__NXbdef /_NXCombineArrays{ counttomark dup 2 add index dup length 3 -1 roll { 2 index length sub dup 4 1 roll 1 index exch 4 -1 roll putinterval exch }repeat pop pop pop }__NXbdef /setcmykcolor{ 1.0 exch sub dup dup 6 -1 roll sub dup 0 lt{pop 0}if 5 1 roll 4 -1 roll sub dup 0 lt{pop 0}if 3 1 roll exch sub dup 0 lt{pop 0}if setrgbcolor }__NXbdef /currentcmykcolor{currentrgbcolor 3{1.0 exch sub 3 1 roll}repeat 0}__NXbdef /flushgraphics{}def /setwindowtype{pop pop}def /currentwindowtype{pop 0}def /setalpha{pop}def /currentalpha{1.0}def /hidecursor{}def /obscurecursor{}def /revealcursor{}def /setcursor{4 {pop}repeat}bind def /showcursor{}def /NextStepEncoding where not{ /NextStepEncoding StandardEncoding 256 array copy def 0 [129/Agrave/Aacute/Acircumflex/Atilde/Adieresis/Aring/Ccedilla/Egrave /Eacute/Ecircumflex/Edieresis/Igrave/Iacute/Icircumflex/Idieresis /Eth/Ntilde/Ograve/Oacute/Ocircumflex/Otilde/Odieresis/Ugrave/Uacute /Ucircumflex/Udieresis/Yacute/Thorn/mu/multiply/divide/copyright 176/registered 181/brokenbar 190/logicalnot 192/onesuperior 201/twosuperior 204/threesuperior 209/plusminus/onequarter/onehalf/threequarters/agrave /aacute/acircumflex/atilde/adieresis/aring/ccedilla/egrave/eacute /ecircumflex/edieresis/igrave 226/iacute 228/icircumflex/idieresis/eth /ntilde 236/ograve/oacute/ocircumflex/otilde/odieresis 242/ugrave/uacute /ucircumflex 246/udieresis/yacute 252/thorn/ydieresis] {dup type /nametype eq {NextStepEncoding 2 index 2 index put pop 1 add}{exch pop}ifelse }forall pop /NextStepEncoding NextStepEncoding readonly def /_NXfstr 128 string dup 0 (_NX) putinterval def /findfont{ % Because we can never let NextStepEncoding get into % SharedFontDirectory, we cannot reencode a font to NextStepEncoding % if we are in shared mode. 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79.461678 74.102226 rectstroke grestore 0 0 0.5 setup 0 setgray 1 setalpha 248.801224 488.12265 79.461678 16.286205 rectstroke grestore 0 0 0.5 setup gsave 57 execuserobject setfont 0 setgray [1 0 0 -1 0 991.717224] concat gsave 262.511414 489.751282 52.877834 12.214653 rectclip 57 execuserobject setfont 0 setgray 262.511414 499.751282 moveto (Joe Bloggs) show grestore grestore grestore 0 0 0.5 setup gsave 57 execuserobject setfont 0 setgray [1 0 0 -1 0 914.357849] concat 57 execuserobject setfont 0 setgray 253.310638 440.306702 moveto (Joe Bloggs) show 253.310638 453.306702 moveto (YD group) show 253.310638 466.306702 moveto (3 Main Street) show 253.310638 479.306702 moveto (\(202\) 676 7687) show grestore grestore 0 setgray 0.333333 setgray 0 0 0.5 setup 0 setgray 1 setalpha 0.836439 66.773422 304.006165 504.408875 line 269.284943 304.006165 504.408875 arrow grestore 0 setgray 0.333333 setgray 0 0 0.5 setup 0 setgray 1 setalpha 0.836439 -63.51619 332.44516 558.967651 line -89.248154 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16.286205 rectfill 0 setgray 1 setalpha 217.852982 366.790466 71.09729 16.286205 rectstroke grestore 0 0 0.5 setup 0 setgray 1 setalpha 25.093164 -43.972748 77.331238 598.868774 line -60.290424 102.4244 554.896057 arrow grestore 0 0 3.897436 setup 0.501968 setgray 1 setalpha 0 -25.243616 234.581757 629.812561 line -90.002655 234.581757 604.56897 arrow grestore 0 0 0.5 setup 0 0 0.5 setup 1 setgray 1 setalpha 148.428558 400.991455 82.807426 40.715511 rectfill 0 setgray 1 setalpha 148.428558 400.991455 82.807426 40.715511 rectstroke grestore 0 0 0.5 setup gsave 57 execuserobject setfont 0 setgray [1 0 0 -1 0 852.470154] concat 57 execuserobject setfont 0 setgray 157.120071 424.020416 moveto (Encyclopaedia) show grestore grestore 0 0 0.5 setup 1 setgray 1 setalpha 152.610748 405.877319 76.115921 13.843272 rectfill 0 setgray 1 setalpha 152.610748 405.877319 76.115921 13.843272 rectstroke grestore 0 0 0.5 setup gsave 57 execuserobject setfont 0 setgray [1 0 0 -1 0 825.598022] concat gsave 157.956497 406.691681 21.093163 12.214652 rectclip 57 execuserobject setfont 0 setgray 157.956497 416.691681 moveto (ATP) show grestore grestore grestore grestore 0 0 3.897436 setup gsave 57 execuserobject setfont 0 setgray [1 0 0 -1 0 750.681458] concat gsave 229.890244 369.233398 21.093164 12.214653 rectclip 57 execuserobject setfont 0 setgray 229.890244 379.233398 moveto (ATP) show grestore grestore grestore 0 0 3.897436 setup gsave 57 execuserobject setfont 0 setgray [1 0 0 -1 0 664.364624] concat 57 execuserobject setfont 0 setgray 231.563126 311.645691 moveto (ATP, an) show 231.563126 324.645691 moveto (acronym) show 231.563126 337.645691 moveto (for ....) show gsave 231.563126 301.645691 42.004128 61.073257 rectclip 231.563126 363.645691 moveto ( \261 Joe) show grestore grestore grestore 0 0 0.5 setup 0 setgray 1 setalpha 35.966869 109.931877 260.511414 317.117493 line 71.885361 296.478271 427.049377 arrow grestore 0 0 0.5 setup gsave 57 execuserobject setfont 0 setgray [1 0 0 -1 0 1055.233398] concat 57 execuserobject setfont 0 setgray 93.550705 519.294739 moveto (Group) show 93.550705 532.294739 moveto (resources) show grestore grestore 0 0 0.5 setup gsave 57 execuserobject setfont 0 setgray [1 0 0 -1 0 492.718964] concat /Helvetica-Oblique findfont 10 scalefont [1 0 0 -1 0 0] makefont 58 exch defineuserobject 58 execuserobject setfont 0 setgray 46.710136 217.359497 moveto (The W3 model involves hypertext links and index searches. 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The result is a virtual hypertext document \(3\)) show gsave 46.710136 207.359497 333.289856 77.999969 rectclip 46.710136 282.359497 moveto (which points to the documents found \(4\).) show grestore grestore grestore 0 0 0.5 setup gsave 58 execuserobject setfont 0 setgray [1 0 0 -1 0 1284.851196] concat gsave 116.971001 636.309448 19.028999 12.232283 rectclip 57 execuserobject setfont 0 setgray 116.971001 646.309448 moveto ( ) show 58 execuserobject setfont (\(1\)) show grestore grestore grestore 0 0 0.5 setup gsave 58 execuserobject setfont 0 setgray [1 0 0 -1 0 1332.081055] concat gsave 295.132507 659.924377 18.867493 12.232283 rectclip 58 execuserobject setfont 0 setgray 295.132507 669.924377 moveto (\(2\)) show grestore grestore grestore 0 0 0.5 setup gsave 58 execuserobject setfont 0 setgray [1 0 0 -1 0 1154.561401] concat gsave 327.753601 571.164551 20.246399 12.232283 rectclip 58 execuserobject setfont 0 setgray 327.753601 581.164551 moveto (\(3\)) show grestore grestore grestore 0 0 0.5 setup gsave 58 execuserobject setfont 0 setgray [1 0 0 -1 0 911.897095] concat gsave 359.538269 449.832397 24.461731 12.232283 rectclip 58 execuserobject setfont 0 setgray 359.538269 459.832397 moveto (\(4\)) show grestore grestore grestore 0 setgray 0.333333 setgray 0 0 0.5 setup 0 setgray 1 setalpha 102.04554 -69.216362 150.10141 535.352661 line 145.850388 150.10141 535.352661 arrow grestore 0 0 3.74359 setup 0 0 0.5 setup 0 setgray 1 setalpha 43.49482 0 38.62735 338.713806 line 0 82.122169 338.713806 arrow grestore 0 0 3.74359 setup 0.501968 setgray 1 setalpha 42.658379 0 38.463745 322.356079 line 0 81.122124 322.356079 arrow grestore 0 0 0.5 setup gsave 58 execuserobject setfont 0 setgray [1 0 0 -1 0 680.24176] concat gsave 92.650055 334.01355 35.349945 12.214653 rectclip 57 execuserobject setfont 0 setgray 92.650055 344.01355 moveto (Link) show grestore grestore grestore 0 0 0.5 setup gsave 57 execuserobject setfont 0 setgray [1 0 0 -1 0 643.897766] concat gsave 94.486511 315.841553 34.476181 12.214653 rectclip 57 execuserobject setfont 0 setgray 94.486511 325.841553 moveto (Search) show grestore grestore grestore grestore 0 setgray 0.333333 setgray gsave 0 0 792 1008 rectclip [1 0 0 -1 0 1008] concat grestore %%Trailer %%DocumentFonts: Helvetica-Oblique %%+ Helvetica %%EndDocument count __NXEPSOpCount sub {pop} repeat countdictstack __NXEPSDictCount sub {end} repeat __NXEPSSave restore grestore /Times-Italic findfont 10 scalefont [1 0 0 -1 0 0] makefont 84 exch defineuserobject 84 execuserobject setfont 0 setgray 182 669 moveto (Fig. 1: A web of links and indexes) show grestore grestore grestore grestore showpage __NXsheetsavetoken restore %%PageTrailer %%DocumentFonts: Times-Italic %%+ Helvetica-Bold %%+ Times-Roman %%Page: 3 3 %%PageBoundingBox: 0 0 576 792 %%PageFonts: (atend) %%BeginPageSetup %%PaperSize: Letter /__NXsheetsavetoken save def 0 0 translate gsave -20 7209 translate /__NXbasematrix matrix currentmatrix def grestore gsave 0 setgray /Times-Roman findfont 10 scalefont [1 0 0 -1 0 0] makefont 9 exch defineuserobject 9 execuserobject setfont 1 setlinewidth [1 0 0 -1 0 7218] concat 72 6426 translate %%EndPageSetup gsave -72 0 576 792 rectclip gsave gsave 1 setgray 0 0 504 792 rectfill 9 execuserobject setfont 0 setgray 90 81 moveto (Features to note are:-) show 120 105 moveto show 139 105 moveto 1 0 32 (Information need only be represented once, as a) widthshow 337 105 moveto 2 0 32 ( reference may be) widthshow 140 117 moveto (made instead of making a copy;) show 120 141 moveto show 139 141 moveto (Links allow the topology of) show 250 141 moveto 1 0 32 ( the information to evolve, so modeling) widthshow 140 153 moveto (the state of human knowledge at any time without constraint;) show 120 177 moveto show 139 177 moveto (The web stretches seamlessly from small personal notes on) show 375 177 moveto 1 0 32 ( the local) widthshow 140 189 moveto (workstation to large databases on other continents;) show 120 213 moveto show 139 213 moveto 4 0 32 (Indexes are documents, and so may themselves be found by) widthshow 140 225 moveto (searches, and/or following links. An index is represented to the user) show 140 237 moveto 3 0 32 (by a \252cover page\272 which) widthshow 251 237 moveto 4 0 32 ( describes the data indexed and the) widthshow 140 249 moveto (properties of the search engine.) show 120 273 moveto show 139 273 moveto (The documents in the web do not) show 272 273 moveto 1 0 32 ( have to exist as files: they can be) widthshow 140 285 moveto show 356 285 moveto 1 0 32 ( to a query or) widthshow 140 297 moveto (document name.) show 206 297 moveto 1 0 32 ( They can therefore represent views of databases,) widthshow 140 309 moveto 3 0 32 (or snapshots) widthshow 193 309 moveto 4 0 32 ( of changing data \(such as the weather forecast,) widthshow 140 321 moveto (financial information, etc\).) show 90 345 moveto (A pleasing, and useful, aspect is that almost all existing information) show 362 345 moveto 1 0 32 ( systems can) widthshow 90 358 moveto (be represented in terms of the W) show /Times-Roman findfont 8 scalefont [1 0 0 -1 0 0] makefont 85 exch defineuserobject 85 execuserobject setfont 220 355 moveto (3) show 9 execuserobject setfont 224 358 moveto ( model. A menu becomes a) show 336 358 moveto 1 0 32 ( page of hypertext,) widthshow 90 370 moveto 2 0 32 (with each element linked to a different destination. The same) widthshow 357 370 moveto 3 0 32 ( is true of a) widthshow 90 382 moveto (directory, whether) show 163 382 moveto 1 0 32 ( part of a hierarchical or cross-linked system. The notion of) widthshow 90 394 moveto (many named indexes within the web allows) show 265 394 moveto 1 0 32 ( a given search engine and database) widthshow 90 406 moveto (to be visible with several different addresses, each representing) show 343 406 moveto 1 0 32 ( different options) widthshow 90 418 moveto 16 0 32 (for the search algorithm. For example, the) widthshow 373 418 moveto 17 0 32 ( index) widthshow /Courier findfont 10 scalefont [1 0 0 -1 0 0] makefont 261 exch defineuserobject 261 execuserobject setfont 90 430 moveto (/library/books/ti+au/substring) show 9 execuserobject setfont 270 430 moveto ( may give a) show 316 430 moveto 1 0 32 ( title and author search,) widthshow 90 442 moveto 1 0 32 (whereas /) widthshow 261 execuserobject setfont 129 442 moveto 1 0 32 (library/books/text/exact) widthshow 9 execuserobject setfont 273 442 moveto 1 0 32 ( may give an) widthshow 327 442 moveto 2 0 32 ( exact-word full-text) widthshow 90 454 moveto (search. Addresses are discussed in more detail below.) show /Helvetica-Bold findfont 14 scalefont [1 0 0 -1 0 0] makefont 18 exch defineuserobject 18 execuserobject setfont 72 482 moveto (Publishing) show 9 execuserobject setfont 90 506 moveto 2 0 32 (From the information provider's point of view, existing information systems) widthshow 90 518 moveto 2 0 32 (may be \252published\272 as part of the web simply by giving access to the) widthshow 392 518 moveto 3 0 32 ( data) widthshow 90 530 moveto 1 0 32 (through a small server program. The data itself, and the) widthshow 324 530 moveto 2 0 32 ( software and human) widthshow 90 542 moveto 2 0 32 (procedures which manage it, are left entirely in place. ) widthshow 330 542 moveto 3 0 32 ( This approach has) widthshow 90 554 moveto (allowed, for example, a mainframe-based document storage and) show 346 554 moveto 1 0 32 ( index system to) widthshow 90 566 moveto (be opened up to access from all platforms in the organization. To see how this is) show 90 579 moveto (done requires a brief overview of the W) show 85 execuserobject setfont 250 576 moveto (3) show 9 execuserobject setfont 254 579 moveto ( architecture.) show 18 execuserobject setfont 72 611 moveto (W) show 85 607 moveto (3) show 93 611 moveto ( Architecture) show 9 execuserobject setfont 90 635 moveto (Hypertext and text retrieval) show 200 635 moveto 1 0 32 ( systems have been available for many years, and a) widthshow 90 647 moveto 2 0 32 (valid question is why a global system has not already) widthshow 321 647 moveto 3 0 32 ( come into existence.) widthshow 90 659 moveto (Traditional answers to this question are the lack of) show 120 685 moveto show 139 685 moveto (A common naming scheme for documents) show 120 700 moveto show 139 700 moveto (Common network access protocols) show 120 715 moveto show 139 715 moveto (Common data formats for hypertext) show grestore grestore grestore grestore showpage __NXsheetsavetoken restore %%PageTrailer %%DocumentFonts: Courier %%+ Helvetica-Bold %%+ Times-Roman %%Page: 4 4 %%PageBoundingBox: 0 0 576 792 %%PageFonts: (atend) %%BeginPageSetup %%PaperSize: Letter /__NXsheetsavetoken save def 0 0 translate gsave -20 7209 translate /__NXbasematrix matrix currentmatrix def grestore gsave 0 setgray /Times-Roman findfont 10 scalefont [1 0 0 -1 0 0] makefont 9 exch defineuserobject 9 execuserobject setfont 1 setlinewidth [1 0 0 -1 0 7218] concat 72 6426 translate %%EndPageSetup gsave -72 0 576 792 rectclip gsave gsave 1 setgray 0 0 504 792 rectfill 9 execuserobject setfont 0 setgray 90 98 moveto (Most research in hypertext systems) show 231 98 moveto 1 0 32 ( \(the Xanadu project excepted\) has focussed) widthshow 90 110 moveto (on the user interface and authoring questions,) show 272 110 moveto 1 0 32 ( rather than the questions of wide-) widthshow 90 122 moveto 1 0 32 (area and long-term distribution. ) widthshow 223 122 moveto 2 0 32 ( These architectures have assumed that users) widthshow 90 134 moveto (share a) show 118 134 moveto 1 0 32 ( common application program running on computers \(often of the same) widthshow 90 147 moveto (type\) which share a common file system. The W) show /Times-Roman findfont 8 scalefont [1 0 0 -1 0 0] makefont 85 exch defineuserobject 85 execuserobject setfont 287 144 moveto (3) show 9 execuserobject setfont 291 147 moveto ( architecture must) show 362 147 moveto 1 0 32 ( cope with a) widthshow 90 159 moveto (widely distributed heterogeneous set of computers running different) show 362 159 moveto 1 0 32 ( applications) widthshow 90 171 moveto (which use different preferred data formats.) show 261 171 moveto 1 0 32 ( This requires a client-server model.) widthshow 90 183 moveto 3 0 32 (The client has the responsibility for resolving a document) widthshow 344 183 moveto 4 0 32 ( address into a) widthshow 90 195 moveto (document using its repertoire of network protocols. ) show 298 195 moveto 1 0 32 ( The server provides data in) widthshow 90 207 moveto (a simple hypertext) show 164 207 moveto 1 0 32 ( or plain text form, or, by negotiation with the client, in any) widthshow 90 219 moveto (other data format.) show 1 setgray 72 222 314 255 rectfill 72.500000 477.500000 transform gsave __NXbasematrix setmatrix itransform translate 0 0 314 255 rectclip -5 9 translate /__NXEPSSave save def /showpage {} def 0 setgray 0 setlinecap 1 setlinewidth 0 setlinejoin 10 setmiterlimit [] 0 setdash newpath count /__NXEPSOpCount exch def /__NXEPSDictCount countdictstack def %%BeginDocument: /timbl/hypertext/Journals/ENRAP/Article_9202.wn/WNGraphic.625436.eps %!PS-Adobe-2.0 EPSF-2.0 %%Title: %%Creator: Draw %%CreationDate: Wed Apr 10 15:48:19 1991 %%For: timbl %%DocumentFonts: (atend) %%Pages: 0 -1 %%BoundingBox: 5 -9 319 246 %%EndComments %%BeginDocument: /usr/lib/NextStep/printPackage.ps %!PS-Adobe-2.0 %%Title: Printing Package %%EndComments %Version: 2.0 %Copyright: 1988, NeXT, Inc. /__NXdef{1 index where{pop pop pop}{def}ifelse}bind def /__NXbdef{1 index where{pop pop pop}{bind def}ifelse}bind def /UserObjects 10 array __NXdef /defineuserobject{ exch dup 1 add dup UserObjects length gt{ array dup 0 UserObjects putinterval /UserObjects exch def }{pop}ifelse UserObjects exch 3 -1 roll put }__NXbdef /undefineuserobject{UserObjects exch null put}__NXbdef /execuserobject{UserObjects exch get exec}__NXbdef /__NXRectPath{4 2 roll moveto 1 index 0 rlineto 0 exch rlineto neg 0 rlineto closepath}__NXbdef /__NXProcessRectArgs{ 1 index type /arraytype eq{ exch 0 4 2 index length 1 sub{ dup 3 add 1 exch{1 index exch get exch}for 5 1 roll 5 index exec }for pop pop }{exec}ifelse }__NXbdef /rectfill{gsave newpath {__NXRectPath fill} __NXProcessRectArgs grestore}__NXbdef /rectclip{newpath {__NXRectPath} __NXProcessRectArgs clip newpath}__NXbdef /rectstroke{ gsave newpath dup type /arraytype eq{dup length 6 eq}{false}ifelse{ {gsave __NXRectPath null concat stroke grestore} dup length array cvx copy dup 2 4 -1 roll put __NXProcessRectArgs }{{__NXRectPath stroke} __NXProcessRectArgs}ifelse grestore }__NXbdef /xyshow{ 0 1 3 index length 1 sub{ currentpoint 4 index 3 index 1 getinterval show 3 index 3 index 2 mul 1 add get add exch 3 index 3 index 2 mul get add exch moveto pop }for pop pop }__NXbdef /xshow{ 0 1 3 index length 1 sub{ currentpoint 4 index 3 index 1 getinterval show exch 3 index 3 index get add exch moveto pop }for pop pop }__NXbdef /yshow{ 0 1 3 index length 1 sub{ currentpoint 4 index 3 index 1 getinterval show 3 index 3 index get add moveto pop }for pop pop }__NXbdef /arct{arcto pop pop pop pop}__NXbdef /setbbox{pop pop pop pop}__NXbdef /ucache{}__NXbdef /ucachestatus{mark 0 0 0 0 0}__NXbdef /setucacheparams{cleartomark}__NXbdef /uappend{systemdict begin cvx exec end}__NXbdef /ueofill{gsave newpath uappend eofill grestore}__NXbdef /ufill{gsave newpath uappend fill grestore}__NXbdef /ustroke{ gsave newpath dup length 6 eq {exch uappend concat}{uappend}ifelse stroke grestore }__NXbdef /__NXustrokepathMatrix dup where {pop pop}{matrix def}ifelse /ustrokepath{ newpath dup length 6 eq{ exch uappend __NXustrokepathMatrix currentmatrix exch concat strokepath setmatrix }{uappend 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rlineto 238 90 rlineto 61 -22 rlineto -244 -106 rlineto -54 38 rlineto -1 -1 rlineto end stroke grestore grestore 0 0 0.5 setup gsave 103.89563 3.737711 translate 0.315933 0.414402 scale 0.333995 setgray gsave newpath systemdict begin 154 479 205 531 setbbox 154 522 moveto 0 0 rlineto 3 -43 rlineto 48 11 rlineto -1 41 rlineto -50 -10 rlineto 0 1 rlineto end eofill grestore grestore 103.89563 3.737711 translate 0.315933 0.414402 scale 0 setgray 1 setalpha gsave newpath systemdict begin 154 479 205 531 setbbox 154 522 moveto 0 0 rlineto 3 -43 rlineto 48 11 rlineto -1 41 rlineto -50 -10 rlineto 0 1 rlineto end stroke grestore grestore grestore 0 0 0 setup 0 0 0.5 setup gsave 157.426758 2.460709 translate 0.315933 0.414402 scale 0.887997 setgray gsave newpath systemdict begin 102 465 215 543 setbbox 144 532 moveto 0 0 rlineto 0 -67 rlineto 0 0 rlineto 6 3 rlineto 65 17 rlineto -2 57 rlineto -69 -10 rlineto -39 -2 rlineto -3 -51 rlineto 43 -14 rlineto -1 66 rlineto -38 -1 rlineto 43 8 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The W) show /Times-Italic findfont 9 scalefont [1 0 0 -1 0 0] makefont 60 exch defineuserobject 60 execuserobject setfont 195 488 moveto (3) show 84 execuserobject setfont 199 491 moveto ( architecture in outline.) show 9 execuserobject setfont 90 515 moveto (It may be more) show 151 515 moveto 1 0 32 ( difficult initially to develop a generic hypertext browser than a) widthshow 90 527 moveto (specific front-end for a particular information system. However, the de-coupling) show 90 539 moveto 1 0 32 (of the client and server programs) widthshow 227 539 moveto 2 0 32 ( by the \252information bus\272 pays off as more) widthshow 90 551 moveto (clients and servers are plugged in and universal readership) show 324 551 moveto 1 0 32 ( is achieved. 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It must) widthshow 155 79 moveto 3 0 32 ( therefore ideally be composed of printable characters, and) widthshow 90 91 moveto (manageably short.) show 90 115 moveto 2 0 32 (Any lasting reference to a document must be) widthshow 283 115 moveto 3 0 32 ( a logical name rather than a) widthshow 90 127 moveto (physical address. That is, it should refer to a) show 269 127 moveto 1 0 32 ( document's registration with some) widthshow 90 139 moveto show 194 139 moveto 1 0 32 ( rather than any physical location, so that its location) widthshow 90 151 moveto (may later be moved. The client is therefore prepared to) show 312 151 moveto 1 0 32 ( follow several stages of) widthshow 90 163 moveto (translation by name servers before finding a final document) show 329 163 moveto 1 0 32 ( server. Similarly, a) widthshow 90 175 moveto (document name should) show 183 175 moveto 1 0 32 ( not contain any information which is transitory such as) widthshow 90 187 moveto (the particular formats available for a document, or its length, for example.) show 90 212 moveto (The W) show /Times-Roman findfont 8 scalefont [1 0 0 -1 0 0] makefont 85 exch defineuserobject 85 execuserobject setfont 117 209 moveto (3) show 9 execuserobject setfont 121 212 moveto ( naming scheme fulfills these requirements, but) show 311 212 moveto 1 0 32 ( is otherwise open to the) widthshow 90 224 moveto 1 0 32 (addition of new protocols as technology evolves. For this purpose) widthshow 366 224 moveto 2 0 32 ( a prefix is) widthshow 90 236 moveto (used to identify the protocol \(and therefore naming scheme\)) show 330 236 moveto 1 0 32 ( to be used. Clients) widthshow 90 248 moveto 2 0 32 (which do not have) widthshow 170 248 moveto 3 0 32 ( that protocol in their repertoire refer to a gateway for) widthshow 90 260 moveto (translation.) show /Helvetica-Bold findfont 14 scalefont [1 0 0 -1 0 0] makefont 18 exch defineuserobject 18 execuserobject setfont 72 288 moveto (Protocols) show 9 execuserobject setfont 90 313 moveto (The W) show 85 execuserobject setfont 117 310 moveto (3) show 9 execuserobject setfont 121 313 moveto ( clients are built on) show 198 313 moveto 1 0 32 ( a common core of networking code for information) widthshow 90 325 moveto (access. This core provides access using widely deployed internet) show 352 325 moveto 1 0 32 ( protocols such) widthshow 90 337 moveto (as ) show 120 351 moveto show 139 351 moveto (File Transfer Protocol \261 FTP [9]) show 120 366 moveto show 139 366 moveto (Network News Transfer Protocol - NNTP [10]) show 120 381 moveto show 139 381 moveto (Access to mounted file systems.) show 90 406 moveto 2 0 32 (A new search and retrieve protocol was found) widthshow 288 406 moveto 3 0 32 ( necessary, known as HTTP.) widthshow 90 418 moveto (Faster than FTP for document retrieval, this) show 265 418 moveto 1 0 32 ( also allows index search. HTTP is) widthshow 90 430 moveto 3 0 32 (similar in implementation to) widthshow 213 430 moveto 4 0 32 ( the internet protocols above, and similar in) widthshow 90 442 moveto (functionality to the WAIS protocol. Some differences are discussed below.) show 18 execuserobject setfont 72 470 moveto (Document Formats) show 9 execuserobject setfont 90 494 moveto 2 0 32 (The Dexter data model of) widthshow 201 494 moveto 3 0 32 ( hypertext [11] provided a conceptual model for) widthshow 90 506 moveto (hypertext systems, and the HyTime standard [12]) show 287 506 moveto 1 0 32 ( formalizes hypertext at a high) widthshow 90 519 moveto 1 0 32 (level. The W) widthshow 85 execuserobject setfont 147 516 moveto 1 0 32 (3) widthshow 9 execuserobject setfont 151 519 moveto 1 0 32 ( project defines a concrete syntax in the) widthshow 317 519 moveto 2 0 32 ( SGML style for basic) widthshow 90 531 moveto 6 0 32 (hypertext as) widthshow 145 531 moveto 7 0 32 ( used for menus, search results, and on-line hypertext) widthshow 90 544 moveto 2 0 32 (documentation. Every W) widthshow 85 execuserobject setfont 199 541 moveto 2 0 32 (3) widthshow 9 execuserobject setfont 203 544 moveto 2 0 32 ( browsing application is able to parse this simple) widthshow 90 556 moveto (format ) show /Times-Italic findfont 10 scalefont [1 0 0 -1 0 0] makefont 84 exch defineuserobject 84 execuserobject setfont 119 556 moveto (\(see Fig. 3\)) show 9 execuserobject setfont 165 556 moveto (.) show 90 580 moveto ( In the pilot phase of the project, this format was all that was required,) show 370 580 moveto 1 0 32 ( but in the) widthshow 90 592 moveto 3 0 32 (second phase, format negotiation between client and server will allow the) widthshow 90 604 moveto 4 0 32 (exchange of information in any medium using) widthshow 299 604 moveto 5 0 32 ( any mutually acceptable) widthshow 90 616 moveto (representation.) show 18 execuserobject setfont 72 644 moveto (WAIS and the Web) show 9 execuserobject setfont 90 669 moveto 2 0 32 (From the point of view of the W) widthshow 85 execuserobject setfont 234 666 moveto 2 0 32 (3) widthshow 9 execuserobject setfont 238 669 moveto 3 0 32 ( dream, the WAIS protocol represents a) widthshow 90 681 moveto 5 0 32 (significant advance on the search and retrieve) widthshow 303 681 moveto 6 0 32 ( \(SR\) protocol standard) widthshow 90 693 moveto 1 0 32 (Z39.50/ISO-10163, by being stateless, and introducing a persistent name. The) widthshow 90 705 moveto (document names used are local to the containing database,) show 324 705 moveto 1 0 32 ( but these names may) widthshow 90 718 moveto 1 0 32 (be appended) widthshow 141 718 moveto 2 0 32 ( to the database name and host address to form a universal W) widthshow 85 execuserobject setfont 410 715 moveto 2 0 32 (3) widthshow grestore grestore grestore grestore showpage __NXsheetsavetoken restore %%PageTrailer %%DocumentFonts: Times-Italic %%+ Helvetica-Bold %%+ Times-Roman %%Page: 6 6 %%PageBoundingBox: 0 0 576 792 %%PageFonts: (atend) %%BeginPageSetup %%PaperSize: Letter /__NXsheetsavetoken save def 0 0 translate gsave -20 7209 translate /__NXbasematrix matrix currentmatrix def grestore gsave 0 setgray /Times-Roman findfont 10 scalefont [1 0 0 -1 0 0] makefont 9 exch defineuserobject 9 execuserobject setfont 1 setlinewidth [1 0 0 -1 0 7218] concat 72 6426 translate %%EndPageSetup gsave -72 0 576 792 rectclip gsave gsave 1 setgray 0 0 504 792 rectfill 9 execuserobject setfont 0 setgray 90 81 moveto (address. In this way, WAIS indexes and) show 252 81 moveto 1 0 32 ( servers can be represented in the web.) widthshow 90 93 moveto 1 0 32 (A gateway program, running at CERN and available for general) widthshow 355 93 moveto 2 0 32 ( use, provides) widthshow 90 105 moveto (this mapping. The WAIS model uses separate \252source\272 files to describe indexes.) show 90 118 moveto 3 0 32 (The WAIS-W) widthshow /Times-Roman findfont 8 scalefont [1 0 0 -1 0 0] makefont 85 exch defineuserobject 85 execuserobject setfont 149 115 moveto 3 0 32 (3) widthshow 9 execuserobject setfont 153 118 moveto 3 0 32 ( gateway keeps caches of these files,) widthshow 318 118 moveto 4 0 32 ( using them to build) widthshow 90 130 moveto (descriptive \252cover pages\272 for indexes.) show 1 setgray 52 157 415 442 rectfill 52.500000 599.500000 transform gsave __NXbasematrix setmatrix itransform translate 0 0 415 442 rectclip -83 -268 translate /__NXEPSSave save def /showpage {} def 0 setgray 0 setlinecap 1 setlinewidth 0 setlinejoin 10 setmiterlimit [] 0 setdash newpath count /__NXEPSOpCount exch def /__NXEPSDictCount countdictstack def %%BeginDocument: /timbl/hypertext/Journals/ENRAP/Article_9202.wn/WNGraphic.903353.eps %!PS-Adobe-2.0 EPSF-2.0 %%Title: %%Creator: Draw %%CreationDate: Tue Feb 11 15:21:41 1992 %%For: timbl %%DocumentFonts: (atend) %%Pages: 0 -1 %%BoundingBox: 83 268 498 710 %%EndComments %%BeginDocument: /usr/lib/NextStep/printPackage.ps %!PS-Adobe-2.0 %%Title: Printing Package %%EndComments %Version: 2.0 %Copyright: 1988, NeXT, Inc. /__NXdef{1 index where{pop pop pop}{def}ifelse}bind def /__NXbdef{1 index where{pop pop pop}{bind def}ifelse}bind def /UserObjects 10 array __NXdef /defineuserobject{ exch dup 1 add dup UserObjects length gt{ array dup 0 UserObjects putinterval /UserObjects exch def }{pop}ifelse UserObjects exch 3 -1 roll put }__NXbdef /undefineuserobject{UserObjects exch null put}__NXbdef /execuserobject{UserObjects exch get exec}__NXbdef /__NXRectPath{4 2 roll moveto 1 index 0 rlineto 0 exch rlineto neg 0 rlineto closepath}__NXbdef /__NXProcessRectArgs{ 1 index type /arraytype eq{ exch 0 4 2 index length 1 sub{ dup 3 add 1 exch{1 index exch get exch}for 5 1 roll 5 index exec }for pop pop }{exec}ifelse }__NXbdef /rectfill{gsave newpath {__NXRectPath fill} __NXProcessRectArgs grestore}__NXbdef /rectclip{newpath {__NXRectPath} __NXProcessRectArgs clip newpath}__NXbdef /rectstroke{ gsave newpath dup type /arraytype eq{dup length 6 eq}{false}ifelse{ {gsave __NXRectPath null concat stroke grestore} dup length array cvx copy dup 2 4 -1 roll put __NXProcessRectArgs }{{__NXRectPath stroke} __NXProcessRectArgs}ifelse grestore }__NXbdef /xyshow{ 0 1 3 index length 1 sub{ currentpoint 4 index 3 index 1 getinterval show 3 index 3 index 2 mul 1 add get add exch 3 index 3 index 2 mul get add exch moveto pop }for pop pop }__NXbdef /xshow{ 0 1 3 index length 1 sub{ currentpoint 4 index 3 index 1 getinterval show exch 3 index 3 index get add exch moveto pop }for pop pop }__NXbdef /yshow{ 0 1 3 index length 1 sub{ currentpoint 4 index 3 index 1 getinterval show 3 index 3 index get add moveto pop }for pop pop }__NXbdef /arct{arcto pop pop pop pop}__NXbdef /setbbox{pop pop pop pop}__NXbdef /ucache{}__NXbdef /ucachestatus{mark 0 0 0 0 0}__NXbdef /setucacheparams{cleartomark}__NXbdef /uappend{systemdict begin cvx exec end}__NXbdef /ueofill{gsave newpath uappend eofill grestore}__NXbdef /ufill{gsave newpath uappend fill grestore}__NXbdef /ustroke{ gsave newpath dup length 6 eq {exch uappend concat}{uappend}ifelse stroke grestore }__NXbdef /__NXustrokepathMatrix dup where {pop pop}{matrix def}ifelse /ustrokepath{ newpath dup length 6 eq{ exch uappend __NXustrokepathMatrix currentmatrix exch concat strokepath setmatrix }{uappend strokepath}ifelse } __NXbdef /upath{ [exch {/ucache cvx}if pathbbox /setbbox cvx {/moveto cvx}{/lineto cvx}{/curveto cvx}{/closepath cvx}pathforall]cvx } __NXbdef /setstrokeadjust{pop}__NXbdef /currentstrokeadjust{false}__NXbdef /selectfont{exch findfont exch dup type /arraytype eq {makefont}{scalefont}ifelse setfont}__NXbdef /_NXCombineArrays{ counttomark dup 2 add index dup length 3 -1 roll { 2 index length sub dup 4 1 roll 1 index exch 4 -1 roll putinterval exch }repeat pop pop pop }__NXbdef /setcmykcolor{ 1.0 exch sub dup dup 6 -1 roll sub dup 0 lt{pop 0}if 5 1 roll 4 -1 roll sub dup 0 lt{pop 0}if 3 1 roll exch sub dup 0 lt{pop 0}if setrgbcolor }__NXbdef /currentcmykcolor{currentrgbcolor 3{1.0 exch sub 3 1 roll}repeat 0}__NXbdef /flushgraphics{}def /setwindowtype{pop pop}def /currentwindowtype{pop 0}def /setalpha{pop}def /currentalpha{1.0}def /hidecursor{}def /obscurecursor{}def /revealcursor{}def /setcursor{4 {pop}repeat}bind def /showcursor{}def /NextStepEncoding where not{ /NextStepEncoding StandardEncoding 256 array copy def 0 [129/Agrave/Aacute/Acircumflex/Atilde/Adieresis/Aring/Ccedilla/Egrave /Eacute/Ecircumflex/Edieresis/Igrave/Iacute/Icircumflex/Idieresis /Eth/Ntilde/Ograve/Oacute/Ocircumflex/Otilde/Odieresis/Ugrave/Uacute /Ucircumflex/Udieresis/Yacute/Thorn/mu/multiply/divide/copyright 176/registered 181/brokenbar 190/logicalnot 192/onesuperior 201/twosuperior 204/threesuperior 209/plusminus/onequarter/onehalf/threequarters/agrave /aacute/acircumflex/atilde/adieresis/aring/ccedilla/egrave/eacute /ecircumflex/edieresis/igrave 226/iacute 228/icircumflex/idieresis/eth /ntilde 236/ograve/oacute/ocircumflex/otilde/odieresis 242/ugrave/uacute /ucircumflex 246/udieresis/yacute 252/thorn/ydieresis] {dup type /nametype eq {NextStepEncoding 2 index 2 index put pop 1 add}{exch pop}ifelse }forall pop /NextStepEncoding NextStepEncoding readonly def /_NXfstr 128 string dup 0 (_NX) putinterval def /findfont{ % Because we can never let NextStepEncoding get into % SharedFontDirectory, we cannot reencode a font to NextStepEncoding % if we are in shared mode. So if currentshared is true, % we call the normal findfont and return that /currentshared where {pop currentshared} {false} ifelse {//findfont exec} {dup _NXfstr 3 125 getinterval cvs length 3 add _NXfstr 0 3 -1 roll getinterval cvn exch FontDirectory 2 index known {pop FontDirectory exch get} {//findfont exec dup /Encoding get StandardEncoding eq { dup length dict exch {1 index /FID ne {2 index 3 1 roll put}{pop pop}ifelse}forall dup /Encoding NextStepEncoding put definefont }{exch pop} ifelse }ifelse }ifelse }bind def }{pop}ifelse /_NXProcArray 5 array __NXdef /_NXChannels 0 __NXdef /_NXTotalBytes 0 __NXdef /_NXDoImageOp{ 1 index{dup}{1}ifelse /_NXChannels exch store _NXChannels 2 add 2 roll _NXProcArray 0 _NXChannels getinterval astore pop 5 index 4 index mul 2 index{1 sub 8 idiv 1 add mul}{mul 1 sub 8 idiv 1 add}ifelse 4 index mul /_NXTotalBytes exch store pop exch pop gsave matrix invertmatrix concat 0.5 setgray 0 0 4 2 roll rectfill grestore { 0 1 _NXChannels 1 sub{ _NXProcArray exch get exec length _NXTotalBytes exch sub /_NXTotalBytes exch store}for _NXTotalBytes 0 le{exit}if }loop /_NXProcArray 5 array def }__NXbdef /colorimage{_NXDoImageOp}__NXbdef /alphaimage{1 add _NXDoImageOp}def %%EndDocument gsave /__NXbasematrix matrix currentmatrix def grestore %%EndProlog %%BeginSetup /oval { translate scale newpath 0.5 0.5 0.5 0 360 arc } def /line { moveto rlineto stroke } def /setup { setlinewidth setlinecap setlinejoin gsave } def /arrow { newpath moveto dup rotate -13 6 rlineto 4 -6 rlineto -4 -6 rlineto closepath gsave 0 setlinejoin stroke grestore fill neg rotate } def %%EndSetup 0 0 792 1008 rectclip 83.5 268.5 414 441 rectclip 83.5 268.5 414 441 rectclip 0 0 0.5 setup 0 setgray 1 setalpha 89 578 157 120 rectstroke grestore 0 setgray 0.333333 setgray 0 0 0.5 setup 0.666662 setgray 1 setalpha 89 681 157 17 rectfill 0 setgray 1 setalpha 89 681 157 17 rectstroke grestore 0 setgray 0.333333 setgray 0 0 0.5 setup 0.666662 setgray 1 setalpha 90 579 13 102 rectfill 0 setgray 1 setalpha 90 579 13 102 rectstroke grestore 0 setgray 0.333333 setgray 0 0 0.5 setup 0.333338 setgray 1 setalpha 92 684 12 12 rectfill 0 setgray 1 setalpha 92 684 12 12 rectstroke grestore 0 setgray 0.333333 setgray 0 0 0.5 setup 0.333338 setgray 1 setalpha 232 684 11 12 rectfill 0 setgray 1 setalpha 232 684 11 12 rectstroke grestore 0 setgray 0.333333 setgray 0 0 0.5 setup 0.333338 setgray 1 setalpha 91 665 12 15 rectfill 0 setgray 1 setalpha 91 665 12 15 rectstroke grestore 0 0 0.5 setup gsave /Helvetica-Oblique findfont 9 scalefont [1 0 0 -1 0 0] makefont 29 exch defineuserobject 29 execuserobject setfont 0 setgray [1 0 0 -1 0 1373] concat /Helvetica findfont 9 scalefont [1 0 0 -1 0 0] makefont 80 exch defineuserobject 80 execuserobject setfont 0 setgray 133 688 moveto (PFD Error codes) show grestore grestore 0 0 0.5 setup gsave 80 execuserobject setfont 0 setgray [1 0 0 -1 0 1322] concat /Helvetica-Bold findfont 11 scalefont [1 0 0 -1 0 0] makefont 25 exch defineuserobject 25 execuserobject setfont 0 setgray 138 658 moveto (Error Codes) show grestore grestore 0 0 0.5 setup gsave 25 execuserobject setfont 0 setgray [1 0 0 -1 0 1294] concat /Helvetica findfont 8 scalefont [1 0 0 -1 0 0] makefont 81 exch defineuserobject 81 execuserobject setfont 0 setgray 111 644 moveto (Codes returned by the ) show (PFD) show 192.376007 645 16 1 rectfill 111 654 moveto (program include) show grestore grestore 0 0 0.5 setup gsave 81 execuserobject setfont 0 setgray [1 0 0 -1 0 1224] concat /Helvetica-Oblique findfont 8 scalefont [1 0 0 -1 0 0] makefont 82 exch defineuserobject 82 execuserobject setfont 0 setgray 121 598 moveto show 121 608 moveto show 121 618 moveto show gsave 121 590 118 44 rectclip grestore grestore grestore 0 setgray 0.333333 setgray 0 0 0.5 setup 0 setgray 1 setalpha 281 577 182 119 rectstroke grestore 0 0 0.5 setup gsave 82 execuserobject setfont 0 setgray [1 0 0 -1 0 1308] concat /Courier findfont 8 scalefont [1 0 0 -1 0 0] makefont 28 exch defineuserobject 28 execuserobject setfont 0 setgray 387 620 moveto (PFD Error Codes) show 297 638 moveto ( ERROR CODES) show 297 656 moveto (Codes returned by the PFD[1]) show 297 665 moveto (program include) show 297 683 moveto ( o No paper in tray) show 297 692 moveto ( o No people in room) show 297 701 moveto ( o No data in file) show grestore grestore 0 0 0.5 setup gsave 28 execuserobject setfont 0 setgray [1 0 0 -1 0 1169] concat 28 execuserobject setfont 0 setgray 286 587 moveto (1-9, Return for more, Help or Quit:) show grestore grestore 0 0 2 setup 0 0 0.5 setup 0 setgray 1 setalpha 55 49 140 501 oval matrix defaultmatrix setmatrix stroke grestore 0 0 2 setup gsave 28 execuserobject setfont 0 setgray [1 0 0 -1 0 1045] concat /Helvetica findfont 10 scalefont [1 0 0 -1 0 0] makefont 57 exch defineuserobject 57 execuserobject setfont 0 setgray 151 516 moveto (Window) show 157 529 moveto (client) show grestore grestore grestore 0 0 2 setup 0 0 0.5 setup 0 setgray 1 setalpha 52 49 350 498 oval matrix defaultmatrix setmatrix stroke grestore 0 0 2 setup gsave 57 execuserobject setfont 0 setgray [1 0 0 -1 0 1038] concat 57 execuserobject setfont 0 setgray 358 513 moveto (Terminal) show 366 526 moveto (client) show grestore grestore grestore 0 0 2 setup 0.333338 setgray 1 setalpha 0 27 168 551 line 90.002655 168 578 arrow grestore 0 0 2 setup 0.333338 setgray 1 setalpha 0 -25 380 575 line 89.997345 380 575 arrow grestore 0 0 2 setup 0 0 2 setup 0.333338 setgray 1 setalpha 38.000038 -103.456635 173 500.000031 line 110.166428 173 500.000031 arrow grestore 0 0 2 setup 0.333338 setgray 1 setalpha 29.687508 -90.751457 219.3125 433.751465 line grestore 0 0 2 setup 0.333338 setgray 1 setalpha 8.312501 35.393078 211 399.2659 line grestore grestore 0 0 2 setup 0 0 2 setup 0.333338 setgray 1 setalpha 43.750034 104.880241 318.25 394.119751 line 67.358879 362.000031 499 arrow grestore 0 0 2 setup 0.333338 setgray 1 setalpha 34.960968 87.245499 262 344 line grestore 0 0 2 setup 0.333338 setgray 1 setalpha 21.28908 -38.05386 296.960938 432.173615 line grestore grestore 0 0 0.5 setup gsave 57 execuserobject setfont 0 setgray [1 0 0 -1 0 626] concat 29 execuserobject setfont 0 setgray 310 283 moveto (Sending hypertext data over) show 310 295 moveto (the network in a high level \(logical\)) show 310 307 moveto (representation allows optimum presentation) show 310 319 moveto (according to the facilities of the reader's) show 310 331 moveto (platform.) show grestore grestore 0 setgray 0.333333 setgray 0 0 0 setup gsave 203.230774 623.18866 translate 0.230769 0.226415 scale 0.666662 setgray 1 setalpha gsave newpath systemdict begin 77 61 142 114 setbbox 77 114 moveto 0 0 rlineto 28 -46 rlineto 5 14 rlineto 21 -21 rlineto 11 10 rlineto -26 19 rlineto 10 7 rlineto -49 17 rlineto 0 0 rlineto end eofill grestore grestore 203.230774 623.18866 translate 0.230769 0.226415 scale 0.666662 setgray 1 setalpha gsave newpath systemdict begin 77 61 142 114 setbbox 77 114 moveto 0 0 rlineto 28 -46 rlineto 5 14 rlineto 21 -21 rlineto 11 10 rlineto -26 19 rlineto 10 7 rlineto -49 17 rlineto 0 0 rlineto end stroke grestore grestore 0 0 0.5 setup 0 0 0.5 setup 0 setgray 1 setalpha 59 58 225 285 oval matrix defaultmatrix setmatrix stroke grestore 0 0 0.5 setup gsave 29 execuserobject setfont 0 setgray [1 0 0 -1 0 635] concat 57 execuserobject setfont 0 setgray 239 321 moveto (Server) show grestore grestore 0 0 0.5 setup gsave 57 execuserobject setfont 0 setgray [1 0 0 -1 0 624] concat 57 execuserobject setfont 0 setgray 130 309 moveto (Original) show 137 322 moveto (Data) show grestore grestore 0 0 0.5 setup 0 setgray 1 setalpha 118 296 60 32 rectstroke grestore 0 0 0.5 setup 0 setgray 1 setalpha 46 1 177 313 line 1.245401 223 314 arrow grestore grestore 0 0 0.192308 setup 0 0 0.192308 setup 0 setgray 1 setalpha 211 0 151 473 line grestore 0 0 0.192308 setup 0 setgray 1 setalpha 21 -14 322 377 line grestore 0 0 0.192308 setup 0 setgray 1 setalpha 50 13 272 364 line grestore 0 0 0.192308 setup 0 setgray 1 setalpha 13 -10 195 376 line grestore 0 0 0.192308 setup 0 setgray 1 setalpha 21 12 174 364 line grestore 0 0 0.192308 setup 0 setgray 1 setalpha 23 -9 151 374 line grestore 0 0 0.192308 setup 0 setgray 1 setalpha 19 16 343 362 line grestore 0 0 0.192308 setup 0 setgray 1 setalpha 20 -15 252 378 line grestore 0 0 0.192308 setup 0 setgray 1 setalpha 44 12 208 366 line grestore 0 0 0.192308 setup gsave 57 execuserobject setfont 0 setgray [1 0 0 -1 0 839] concat 28 execuserobject setfont 0 setgray 157 377 moveto () show 157 386 moveto (

Error Codes

) show 157 422 moveto (
• No paper in tray) show 157 431 moveto (
• No people in room) show 157 440 moveto (
• No data in file) show 157 449 moveto (