INTERNATIONAL STANDARD 1 1 1 3 I NTERNATIONAL ORGANIZATION FOR STANDARDIZATION*ME~YHAPO/lHAR OPrAHH3AL&lR n0 CTAH&WT! l 3Al JHU ORGANISATlON INTERNATIONALE DE NORMALISATION I nformation processing Rep[.]
I N TE RN ATI ON S TAN AL D ARD I N TE RN ATI ON AL ORG AN I ZATI ON FOR I n formati on ch aracter Trai temen ii t de processi n g set l’i n S TAN D ARD I ZATI ON * M E ~ YH AP O/l H AR fo rma on ti on - ta ti on su r n0 CTAH &WT! - l Al J H U ORG AN I S ATl ON Represen t ati on - pu n ch e d Re p&e n OP r AH H AL&l R of 1 I N TE RN ATI ON ALE th e 7- bi t DE N ORM ALI S ATI ON co d e d tape ban d e pet- fort % du j eu de wrac t &es co d & Mmen t s Se co n d ed i ti on U DC - 81 27 44 Descri ptors : d ata 79 - - : 681 processi n g , ch aracter Ref sets, cod ed ch aracter sets, represen tati on of ch aracters, pu n ch ed tapes, N o I S0 I S0 1 - 79 seven - bi t Pri ce ( E) cod es based on pag es F OR E WOR D I S0 of ( th e I n tern ati on al n ati on al I n tern ati on al me m be r u p h as th e Draft i n terested ri gh t to by th e I n tern ati on al I SO/TC ci rcu l ated 97, I S0 ou t on th at ad opt ed for by approval I S0 wh i ch Th e wi th th e th ei r I S0 1113 an d i n formati on to th e m e m be r commi ttees I n tern ati on al bod i es was i n Febru ary by th e m e m be r bod i es d evel oped by processi n g org an i zati on s, are ci rcu l ated as of th e fol l owi n g cou n tri es Sou t h Spai n F R Brazi l I tal y Swi tzerl an d J apan Tu rkey Czech osl ovaki a N eth erl an d s U n i ted De n m ark Pol an d U S S R Fran ce Ro man i a Swi tzerl an d for Stan d ard i zati on , 979 edi ti on l ( I S0 Re p of Ki n g d o m of th e d ocu men t can cel s an d repl aces th e fi rst Org an i zati on was : Afri ca, Can ad a expressed d i sapproval Co mmi t t ee edi ti on 978 I ran in I n tern ati on al se d G e rm an y, I n tern ati on al i n th e work Tech n i cal Th i s Bel g i u m edi ti on Every h as be e n set part commi t tees acceptan ce Au stral i a Th i s se co n d d evel opi n g Cou n ci l St an d ard bod y federati on of commi ttee I SO, al so take tech n i cal before wo rk tech n i cal a tech n i cal commi ttee i n l i son i s a worl d wi d e bod i es) th rou g h for Co mpu t ers N o m e m be r Pri n ted be represen ted bod i es I t h as be e n approved carri ed Stan dard i zati on ) m e m be r i n a su bj ect St an d ard s m e m be r Stan d ard s is for ( I S0 an d n on - g overn men tal , I n tern ati on al th e i n sti tu tes Stan d ard s bo d y g overn men t al to Org an i zati on stan d ard s 1 3- 973 ) I NTERNATI ONAL STAN DARD I nformati on character SCOPE Thi s FI ELD I nternati onal of the (1 i n) wi de processi ng set on AN D 7-bi t Representati on - pu n ch ed speci fi es character set on 2 the pu n ch ed I S0 The tape 25, starti ng mm 3 7-bi t coded ch aracter set for i nformati on The i nterchange 1 54, in I nformati on processi n g - Pu n ch ed Di mensi ons an d l ocati ons of feed hol es I S0 I nformati on processi ng 729, tape - code paper - Un pu n ch ed be n u mbered reference tracks character set consecu ti vel y edge Th e feed hol e from to track shal l an d shal l be the 7-bi t character set speci fi ed 646 Representati on Each of coded posi ti on be assi gned a hol e a hol e shal l shal l Pu n ch ed tape The tape be to code tracks characters wh ere to the represent represent a code hol e representati on bi nary bi nary can of a bi t ZERO Th e be pu n ch ed The absen ce presence of ON E an d ) to coded paper SPECI FI CATI ONS correspond the code shal l the set I S0 of (See al so fi gures 7-bi t (E) tape - an d code hol es Speci fi cati on physi cal from of Ch aracter shal l tracks be between 646, I S0 Nu mberi n g representati on REFEREN CES processi n g of the 1 3- 979 tape OF APPLI CATI ON Stan dard coded I S0 Each transverse representati on u sed the (of paper requ i rements characteri sti cs of or in 25, other I S0 mm materi al ) 729 (1 i n) shal l regardi ng wi de the Bi ts tabl e shal l Pari ty of onl y b, to row b, be assi gn ed of hol es on e character of a character respecti vel y shal l wi th contai n i ts pari ty from the to tracks to th e bi t 7-bi t code pu n ch ed tape Layou t The tape a feed shal l hol e ei ther si de code tracks an d of th e tracks track, of thi s in in of The reference hol e track paral l el wh i ch of to there h ol es the I S0 Referen ce To a track track wh i ch di mensi ons are speci fi ed contai n the shal l may hol es smal l hol es edges of th e be respecti vel y be pu n ch ed Th e an d the posi ti ons tape On an d posi ti ons of the tracks extra coded Thi s so protecti on bi t cal l ed agai nst errors a “pari ty bi t” in the shal l tape be pu nchi ng, added to each character bi t that shal l the be pl aced n u mber of even (even pari ty) Ch aracter sequ en ce The di recti on of in track bi nary I ts val u e shal l ON ES in the be ch osen same row is 1 54 edge edge al l ow an consti tuti ng bi t shal l h as three be that code on hol es the si de of the feed opposi te an d di recti on movemen t to the character of the sequ ence of movemen t pu n ch ed tape of tape shal l be I S0 1 - 79 ( E) Tran sverse on e Cod e track I L I I I I I I I I I I I 0000 0000 0000 0000 0 0 0 0000 0000 I I 0000 I I IO on may each be of Cod e tracks Feed h ol e / 0 0 0 Cod e I I tracks Di recti on I tape I I I I I I I I track I 0000 I of movemen t - \ ! I &! \ +++ cccc Seq u en ce in ch aracters an d FI G U RE P - Ch aracter Even wh i ch are th e pu n ch ed read an d pari ty track l ayou t bi t b I b6 Referen ce Bi t L Track F I GUR wh i ch represen ted n u mber I , rows character E ed g e i d en ti fi cati on n u mber - Bi t- to- track assi g n men t Referen ce ed g e