The 22-bit addressing mode and extended branch mode introduced by the 1906 was extended to the 1902A and 1903A, but not the much smaller 1901A. ICL introduced a paging unit to the …

The 1902A used cheaper timing circuits and ran at a slower clock rate. The 1901A used a new compact design incorporating a printer in the same housing as the processor. It had a new, …

During the 10 years of market life of the 1900 Range, the specification and measurement of processor performance, initially expressed in individual instruction times, was increasingly …

Pages in category "ICL mainframe computers" The following 62 pages are in this category, out of 62 total. This list may not reflect recent changes. ... ICL 1901S; ICL 1901T; ICT 1902; ICL …

• On 17 January 1968 the 1900A series was announced (1901A, 1902A, 1903A, 1904A, 1906A) replacing the whole range. • On 29 Jan.1968: 1000th order taken for 1900's

2010年3月7日 · After ICL had introduced the "New Range" (NR) series of computers during the 70s, marketed as the 2900 series, the 1900 series actually lived on as there was such a …

ICT (International Computers and Tabulators) on 28 September 1964 announced the 1900 Range of systems, giving great emphasis on program compatibility and portability between all models …

ICT/ICL 1900 seminar in May 1996 (Science Museum – London). It maps the delivery period versus performance of each 1900 model in its successive manifestations (see Sect.1.4), the …

Around 1963 Ferranti were looking for a system below the speed of Orion and Atlas to replace Pegasus, Mercury and Sirius. Their Canadian subsidiary, Ferranti Packard had recently visited …

ICL's replacement for its earlier 1900 Series and System 4 computers. Specifically, the 2903 and 2904 fit into the group spanned by the low-cost 190IA and the disc-based 190 I S systems …