Cambridge Professional English Infotech English for computer users Fourth Editiorf

ARPANet /'a:panet/ n Advanced Research Projects Agency Network. Developed in the early 70s by the US Department of Defence. This was the precursor to the Internet.
Artificial Intelligence /uiti.fijal in'telid3ans/ n The study of methods by which a computer can simulate aspects of human intelligence.
ASCII code/'aeski: ,kaud/ n A standard system for the binary representation of characters. ASCII, which stands for American Standard Code for Information Interchange, permits computers from different manufacturers to exchange data, aspect ratio /'aespekt, rei Jiao/' ri [ he width of the screen divided by its height, e.g. 4:3 (standard PC monitor or TV set) and 16:9 (high-definition TV), assembler/a'sembla/ n A special program that converts a program written in a low-level language into machine code, assembly language /a'sembli ,laer)gwid3/ n A low-level language that uses abbreviations, such as ADD, SUB and MPY, to represent instructions. ATA adaptor /'ertiiei a.daepta/ n An analogue telephone adaptor, which converts the analogue signals of your traditional phone into digital signals.