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Mayelana nalolu hlelo lokusebenza

I-COBOL imele Ulimi Olugxile Ebhizinisini Elivamile. UMnyango Wezokuvikela wase-US, engqungqutheleni, usungule i-CODASYL (Inkomfa Yolimi Lwezinhlelo Zedatha) ukuthuthukisa ulimi lwezidingo zokucubungula idatha yebhizinisi manje eyaziwa ngokuthi i-COBOL.
I-COBOL isetshenziselwa ukubhala izinhlelo zokusebenza futhi asikwazi ukuyisebenzisela ukubhala isofthiwe yesistimu. Izinhlelo zokusebenza ezifana nalezo ezikusizinda sokuvikela, isizinda somshuwalense, njll. ezidinga ukucutshungulwa kwedatha okukhulu zisebenzisa kakhulu i-COBOL.

I-COBOL ulimi olusezingeni eliphezulu. Umuntu kufanele aqonde indlela i-COBOL esebenza ngayo. Amakhompyutha aqonda ikhodi yomshini kuphela, ukusakaza okunambambili kwama-0s no-1s. Ikhodi ye-COBOL kufanele iguqulwe ibe ikhodi yomshini kusetshenziswa isihlanganisi. Qalisa umthombo wohlelo ngokusebenzisa isihlanganisi. Umhlanganisi uqala ngokuhlola noma yimaphi amaphutha e-syntax bese eyiguqulela olimini lomshini. Umhlanganisi udala ifayela lokuphumayo elaziwa ngokuthi imojuli yokulayisha. Leli fayela eliphumayo liqukethe ikhodi esebenzisekayo engo-0s no-1s.

Ukuvela kwe-COBOL
Phakathi neminyaka yawo-1950, lapho amabhizinisi ekhula engxenyeni esentshonalanga yomhlaba, kwakunesidingo sokushintsha izinqubo ezihlukahlukene ukuze kube lula ukusebenza futhi lokhu kwazala ulimi olusezingeni eliphezulu lokuhlela oluhloselwe ukucubungula idatha yebhizinisi.

Ngo-1959, i-COBOL yasungulwa yi-CODASYL (Inkomfa Yolimi Lwezinhlelo Zedatha).

Inguqulo elandelayo, i-COBOL-61, yakhululwa ngo-1961 ngezibuyekezo ezithile.

Ngo-1968, i-COBOL yagunyazwa yi-ANSI njengolimi olujwayelekile lokusetshenziswa kwezohwebo (COBOL-68).

Yabuye yabuyekezwa ngo-1974 nango-1985 ukuze kuthuthukiswe izinguqulo ezilandelayo eziqanjwe ngokuthi i-COBOL-74 ne-COBOL-85 ngokulandelana.

Ngo-2002, kwakhululwa i-Object-Oriented COBOL, engasebenzisa izinto ezihlanganisiwe njengengxenye evamile yohlelo lwe-COBOL.

Ukubaluleka kwe-COBOL
I-COBOL yayiwulimi lokuqala olusetshenziswa kabanzi lwezinga eliphezulu. Iwulimi olufana nesiNgisi olusebenziseka kalula. Yonke imiyalelo ingabhalwa ngamagama alula esiNgisi.

I-COBOL iphinde isetshenziswe njengolimi lokuzibhalela.

I-COBOL ingaphatha ukucutshungulwa kwedatha okukhulu.

I-COBOL iyahambisana nezinguqulo zayo zangaphambilini.

I-COBOL inemilayezo yephutha esebenzayo ngakho-ke, ukulungiswa kweziphazamisi kulula.

Izici ze-COBOL
Ulimi Olujwayelekile
I-COBOL iwulimi olujwayelekile olungahlanganiswa futhi lusetshenziswe emishinini efana ne-IBM AS/400, amakhompyutha omuntu siqu, njll.

Ezamabhizinisi
I-COBOL yakhelwe izinhlelo zokusebenza ezigxile ebhizinisini ezihlobene nesizinda sezimali, isizinda sokuvikela, njll. Ingakwazi ukuphatha amavolumu amakhulu wedatha ngenxa yamakhono ayo okuphatha amafayela athuthukile.

Ulimi Oluqinile
I-COBOL iwulimi oluqinile njengoba amathuluzi ayo amaningi okulungisa amaphutha nawokuhlola etholakala cishe kuwo wonke amapulatifomu ekhompyutha.

Ulimi Oluhlelekile
Izakhiwo zokulawula okunengqondo ziyatholakala ku-COBOL okwenza kube lula ukuzifunda nokushintsha. I-COBOL inezigaba ezihlukene, ngakho-ke kulula ukuyisusa.