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Subject: Re: 4. kynslóðar forritunarmál


Author:
Hjálmtýr
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Date Posted: 4/12/06 14:23
In reply to: bison 's message, "4. kynslóðar forritunarmál" on 12/10/06 23:20

>Hvað er 4. kynslóðar forritunarmál?

Afsakaðu seint svar.

Þetta er skilgreining sem var mjög vinsæl fyrir 15-20 árum, en er varla lengur notuð. Hugmyndin var að vélarmál væru fyrsta kynslóð (þ.e. kóði eins og "156C, 166D, ..."), síðan væri smalamál (assembly language) önnur kynslóð (þ.e. kóði eins og "LOAD R5, Verd, ..."). Þriðja kynslóð væri venjuleg forritunarmál eins og C, Fortran, C++, Java, ... Fjórðu kynslóðarmál væru þá mál sem segðu frekar HVAÐ ætti að gera, en ekki HVERNIG. Annars hefur skilgreining á 4GL aldrei almennilega verið á hreinu, þannig að hver skildi þetta á sinn hátt.

Algengast nú er að tala um svokölluð gagnasafnsmál sem fjórðu kynslóðarmál. Það er ágætis grein um 4GL á Wikipedia.

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