International Computers and Tabulators or ICT was formed in 1959 by a merger of the British Tabulating Machine Company (BTM) and Powers-Samas. In 1963 it also added the business computer divisions of Ferranti. It exported computers to many countries around the world and went on to become part of International Computers Ltd. 1959 (MCMLIX) was a common year starting on Thursday of the Gregorian calendar. ... The British Tabulating Machine Company (BTM) was a firm which manufactured and sold Hollerith punched-card machines and other data-processing equipment. ... Powers-Samas was a British company who sold punched card equipment. ... Ferranti or Ferranti International Signal plc by the time of its collapse, was a major UK electrical engineering and equipment firm, known primarily for their defense electronics and power grid systems. ... International Computers Ltd, or ICL, was a large British computer hardware company that operated from 1968 until 2002, when it was renamed Fujitsu Services Limited after its parent company, Fujitsu. ...

The ICT 1201 computer, used thermionic valve technology and its main memory was drum storage. Input was from 80 column punched cards and output was to 80 column cards and a printer. Before the merger, under BTM, this had been known as the HEC4 (Holerith Electronic Computer, fourth version).

The ICT 1301, and its smaller cousin the ICT 1300, used germanium transistors and core memory. Backing store was magnetic drum, and optionally one inch, half inch or quarter inch wide magnetic tape. Input was from 80 column punched cards and optionally 160 column punched cards and punched paper tape. Output was to 80 column punched cards, printer and optionally to punched paper tape. The first customer delivery was in 1962, a 1301 sold to the University of London. One of their main attractions was that they performed British currency calculations (Pounds Shillings and Pence) in hardware. They also had the advantage of programmers not having to learn binary or octal arithmetic as the instruction set was pure decimal and the arithmetic unit had no binary mode, only decimal or pounds shillings and pence. Its clock ran at 1MHz. The London Univ Machine still exists (January 2006) and is being reinstated in a working condition by a group of enthusiasts. The ICT 1301 and its smaller derivative ICT 1300 were early business computers from International Computers and Tabulators. ... The ICT 1301 and its smaller derivative ICT 1300 were early business computers from International Computers and Tabulators. ... A 16×16 cm area core memory plane of 128×128 bits, i. ... The Magnetic Drum was invented by G. Taushek in 1932 in Austria. ... A roll of punched tape Punched tape is an old-fashioned form of data storage, consisting of a long strip of paper in which holes are punched to store data. ...

The ICT 1302 used similar technology to the 1300/1301 but was a multiprogramming system capable of running 3 programs in addition to the Executive. It also used the 'Standard Interface' for the connection of peripherals allowing much more flexibility in peripheral configuration. The 'Standard Interface' was originally prototyped on the 1301 and went on to be used on the 1900 series.

The ICT 1500 series was a design bought in from the RCA_Corporation, who called it the RCA 310. RCA also sold the design to Siemens in Germany and Compagnie des Machines Bull in France who called the Gamma 30. It used a 6 bit byte and had core stores of 10,000 , 20,000 or 40,000 bytes. RCA, formerly an initialism for the Radio Corporation of America, is now a trademark used by two companies for products descended from that common ancestor: Thomson Consumer Electronics, which manufactures RCA-branded televisions, DVD players, video cassette recorders, direct broadcast satellite decoders, camcorders, audio equipment, telephones, and related accessories; and...

The ICT 1900 series was devised after the acquisition of Ferranti's assets which brought in the new Ferranti-Packard 6000 machine from Ferranti's Canadian subsidiary, which was considerably more advanced than the existing 130x line. It was decided to adapt this machine to use the 'Standard Interface', and it was put on the market as the ICT 1901. This was the first in a series of 190x machines, each aimed at a different segment of the market. 1900 series In the 1960s, ICT introduced a range of mainframe computers called the 1900 series. ... The FP-6000 was a second generation mainframe computer developed and built by Ferranti-Packard in the early 1960s. ...

ICT merged with Elliott Automation and EELM to become International Computers Ltd (ICL). EELM was in the process of making a line of large IBM System/360-compatible mainframes based on the RCA Specta 70, which was sold as the ICL System-4. Both 1900 and System-4 were eventually replaced by the ICL 2900 series which was introduced in 1974. Elliott Brothers (London) Ltd was an early computer company of the 1950s–60s in the United Kingdom. ... International Computers Ltd, or ICL, was a large British computer hardware company that operated from 1968 until 2002, when it was renamed Fujitsu Services Limited after its parent company, Fujitsu. ... System 360 Model 65 operators console, with register value lamps and toggle switches (middle of picture) and emergency pull switch (upper right). ...