Explore the World of Software 2: Kids, Adults, Educational

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Text File | 1985-12-26 | 4.6 KB | 368 lines

*1-190 xÇÇç rââ┘ Overview rÉâ∙∙ ræâ┘ röâ╤What is a database? rºâ┘ ⌐ râäτ ┴─ rüëç råëçThe card catalog has two advantages over the address book: rìïç rçîç ∙ new entries can r£îçbe added r⌐îº r╜îç┌ è─┐ râìç ô rñìç r╜ìç│ r╛ìºBed r╚ìç│ rîÄçin alphabetical order rªÄç r░Äç à r╜Äç│ r╚Äç│ rüÅç á r¿Åç ┌ ë─┐ r╜Åç└ è─┘ ríÉç r¬Éç│ r½ÉÅBox r«Éç┌ ë─┐ rúæç r¬æç│ r«æç│ r»æÅBit r▓æç┌ ë─┐ rÑÆç r¬Æç└───│ r▓Æç│ r│ÆÅBath r╗Æç │ rºôç r«ôç└───│ r╗ôç │ r⌐öç r▓öç└ ë─┘ róûç å rñùç ¡ q╧ÿçP,5,,,,, a1,P,,,,, *1-194 rªÄç┌ ë─┐ rªÅç│ rºÅÅBox rªÉç│ r½ÉÅBit r«Éç å │ à rªæç└─── r«æç ä r«Æç ä─ r«ôç ä q╧ÿçP,2,,,,, a1,P,,,,, *1-195 r╜îç î r║ìç┌ ë─┐ r╚ìç r║Äç│ r╗ÄºBed r─Äç│ r╟Äç r║Åç│ r╜Åç ç │ ä r║Éç└ ë─┘ q╧ÿçP,1,,,,, a1,P,,,,, *1-196 r║ìç ì r│Äç┌ ë─┐ r─Äç r│Åç│ r┤ÅºBed r╖Åç å │ r├Åç r│Éç│ ë │ ç d╜æç┘ r╜Æç q╧ÿçP,1,,,,, a1,P,,,,, *1-197 r▓îÅ ù r╝ìÅ ì r│Äç ï r╚ÄÅ r▓Åç──┐ r╜ÅÅ ì r«Éç┌ ë─┐ r╜Éç r«æç│ r»æÅBed r╜æç r¼Æç──│ r«ôç└─── q╧ÿçP,4,,,,, a1,P,,,,, *1-198 r¿ìº\ r¡ìº/ r⌐Äº\ r¼Äº/ r╡Äç┌ ë─┐ rºÅÅOld r¬Åº\/ r¼ÅÅcard r░Åç│ ä │ r╢ÅºNew card r┐Åç│ r¿Éτ r¬Éº/\ r¼Éç ä │ ä │ ë │ rëæç∙ rîæçchanges can be made r¿æç─ r⌐æº/ r¬æç── r¼æº\ r¡æç───┘ ä └ ë─┘ r¿Æº/ r¬Æç r¡Æº\ r«Æç æ rîôçeasily by replacing an r¬ôç ò r¬öç ò rîòçold card with a new one. râù╕ F9 to review rñù┘ Press r¡ù∙──┘ r▒ù┘ to continue or r─ù∙F5 r╞ù┘ to exit q╧ÿçS,,,,,, a7,G,,,,, a8,P,,,,&H0D, a8,C,M102.T,,,&H0043, a8,C,M002.T,,,&H003F, *1-200 råëçBut if the library needed a list of all its books published råïçin 1945, the librarian's task of searching through all the rüîç ╨ råìçcards and writing a list by hand would be long and tedious. rüÄç ╨ rüÅç ╨ råÉçIt would be easier if the library had a listing of its r┐Éç rüæç ╨ råÆçbooks arranged numerically, by date of publication. rîôç û r⌐ôç ú rîòç Ö r⌐òç ¥ q╧ÿçS,,,,,, a7,G,,,,, a8,P,,,,&H0D, a8,C,M002.T,,,&H003F, a8,T,1-190,,,&H0043, *1-210 råëçBecause of the work involved in creating separate listings, råïçmost libraries ç r¢ïº┌ Æ─┐ r»ïç à r┤ïº┌ ô─┐ r¢îº│ r£îÅ Æ r«îº│ r▒îç r│îç r┤îº│ r╡îç r╖îÅ Å r╚îº│ rüìÅ räìç settle for two: å r¢ìº│ r£ìç r₧ìÅAuthor Catalog r¼ìç r«ìº│ r»ìç & r┤ìº│ r╡ìç r╖ìÅSubject Catalog r╚ìº│ rüÄç Ü r¢Äº└ Æ─┘ r»Äç à r┤Äº└ ô─┘ r╔Äç ç rüÉç ╨ rüæç à The information in both catalogs is the same, but the order of ë rüÆç ╨ rüôç à the cards is different. ┤ r⌐òç £ q╧ÿçS,,,,,, a7,G,,,,, a8,P,,,,&H0D, a8,C,M002.T,,,&H003F, a8,T,1-190,,,&H0043, *1-220 råëçIf the library used dBASE III PLUS to store its database, à råïçinstead of the card system, the librarian could create ì rüîç ╨ råìçdifferent listings of the books from the same database r┐ìç è rüÄç ╚ rüÅç à quickly and efficiently. │ rüæç ╨ rüôç ╨ r⌐òç £ q╧ÿçS,,,,,, a7,G,,,,, a8,P,,,,&H0D, a8,C,M002.T,,,&H003F, a8,T,1-190,,,&H0043, *1-221 dóåÅ ríêç róêÅ rüëç └ r╩ëç ç ríèç à r¿èÅ┌ è─┐ rüïç à From the original database, ç r¿ïÅ│ r⌐ïç è r│ïÅ│ r┤ïç ì r╩ïç ç råîç ¥ rúîº rªîç r¿îÅ│ r⌐îç Original r│îÅ│ r╩îÅ rüìç à new listings could be made rúìº rªìç r¿ìÅ│ r⌐ìç database r│ìÅ│ r┤ìç è r╩ìÅ r╠ìç à rüÄç ó r¿ÄÅ│ r⌐Äç è r│ÄÅ│ r╩ÄÅ r╦Äç rüÅç à when needed. æ rúÅº rÑÅº r¿ÅÅ│ r¬Åç ë r│ÅÅ│ r╩ÅÅ r╦Åç å rüÉç à ríÉç à r¿ÉÅ│ r½Éç ê r│ÉÅ│ r┐Éç r└ÉÅ r╩ÉÅ r╦Éç rüæç Ñ r¿æÅ└ è─┘ r┐æç r╩æç ç rüÆç Ñ r┐Æç r╩Æç ç rüôç ó r¿ôç º rüöç ó rúöº r¿öº r⌐òç £ râùç Ä rñùç ¼ rüÿç ╧ q╧ÿçP,3,,,,, a1,P,,,,, *1-222 u«ëº││ r¬åçAlphabetical listing by author d╔åÅ│┘ l╚çÅ á─└ u¿åÅ│ r¿àÅ┌ á─┐ q╧ÿÅP,2,,,,, a1,P,,,,, *1-223 r┤ïº─── r╖ïÅ r║èçAlphabetical listing r║ïçby subject u╕ïÅ││ r╕ëÅ┌ û─┐ d╧èÅ││┘ l╬îÅ û─└ q╧ÿÅP,2,,,,, a1,P,,,,, *1-224 r┤Åº─── r║ÅçNumeric listing r║Éçby call number u╕ÉÅ││ r╕ÄÅ┌ æ─┐ d╩ÅÅ││┘ l╔æÅ æ─└ q╧ÿÅP,2,,,,, a1,P,,,,, *1-225 d▒Æº││ r«òçNumeric listing by date u¼òÅ│ r¼öÅ┌ Ö─┐ d╞òÅ│┘ l┼ûÅ Ö─└ q╧ÿÅP,2,,,,, a1,P,,,,, *1-226 râù╕ F9 to review rñù┘ Press r¡ù∙──┘ r▒ù┘ to continue or r─ù∙F5 r╞ù┘ to exit q╧ÿçS,,,,,, a7,G,,,,, a8,P,,,,&H0D, a8,C,M002.T,,,&H003F, a8,T,1-190,,,&H0043, *1-227 råèçAs with several catalogs, råïç £ råîçthe order of each list is rüìç í råÄçdifferent, but the original rüÅç Æ råÉçdatabase remains unchanged. råôç ú råòç ¢ q╧ÿçS,,,,,, a7,G,,,,, a8,C,M104.T,,,&H0D, a8,C,M002.T,,,&H003F, a8,T,1-190,,,&H0043, emains unchanged. råôç ú råòç ¢ q╧ÿçS,,,,,, a7,G,,