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In the Mod 2 operating system, the Easycoder assembler and every compiler generated object modules on a "go file" on tape; these objects were then linked by means of the LINKLOAD program into one or more executable programs on a "job file", still on tape, which can either be run directly from the tape or loaded in 8-bit mode (i.e. including ...
Direct-coupler transistor logic (DCTL) circuit of the Leprechaun computer. The TRADIC (for TRAnsistor DIgital Computer or TRansistorized Airborne DIgital Computer) was the first transistorized computer in the USA, completed in 1954.
The IBM 701 Electronic Data Processing Machine, known as the Defense Calculator while in development, was IBM’s first commercial scientific computer and its first series production mainframe computer, which was announced to the public on May 21, 1952. [1]
The IBM 610 Auto-Point Computer is one of the first personal computers, in the sense of a computer to be used by one person whose previous experience with computing might only have been with desk calculators.
The IBM 1401 is a variable-wordlength decimal computer that was announced by IBM on October 5, 1959. The first member of the highly successful IBM 1400 series, it was aimed at replacing unit record equipment for processing data stored on punched cards and at providing peripheral services for larger computers. [1]
The Z1 was a motor-driven mechanical computer designed by German inventor Konrad Zuse from 1936 to 1937, which he built in his parents' home from 1936 to 1938. [1] [2] It was a binary, electrically driven, mechanical calculator, with limited programmability, reading instructions from punched celluloid film.
BESM (БЭСМ) is the series of Soviet mainframe computers built in 1950–60s. The name is an acronym for "Bolshaya [1] (or Bystrodeystvuyushchaya) [2] Elektronno ...
The smaller models in the System/360 line (e.g. the 360/30) were intended to replace the 1400 series while providing an easier upgrade path to the larger 360s. To smooth the transition from the second generation to the new line, IBM used the 360's microprogramming capability to emulate the more popular older models. Thus 360/30s with this added ...