Thick-film modules

• Book ID: 103042961
• Publisher: Elsevier Science
• Year: 1972
• Tongue: English
• Weight: 297 KB
• Volume: 4
• Category: Article
• ISSN: 0010-4485
• DOI: 10.1016/0010-4485(72)90169-8

✦ Synopsis

will soon be available with modified IBM Selectric typewriters as primary input/output devices. Programs are stored on standard magnetic tape cassettes, and high-speed disc storage will be available soon as an optional extra. The central processing unit, an eight-bit general purpose computer uses t.t.1, integrated circuits. It has a standard 4096 word, l'6/zs full cycle memory, expandable to 65 536 words.

Up to 16 in-house or telephone-remote users may operate simultaneously. A repertoire of 70 instructions, including 21 memory reference instructions with both single and double byte operands is available. There are also five single and double arithmetic instructions which operate in either binary or decimal mode. Although the 3300 is nominally an eight-bit computer, use of double memory reference and arithmetical instructions provides instruction logic equivalent to that of many 16-bit machines, the company claims.