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The Kenbak-1 has a total of nine registers. All are memory mapped. It has three general-purpose registers: A, B and X. Register A is the implicit destination of some operations.
The PDP-1 (Programmed Data Processor-1) is the first computer in Digital Equipment Corporation's PDP series and was first produced in 1959. It is known for being the most important computer in the creation of hacker culture at the Massachusetts Institute of Technology, Bolt, Beranek and Newman, and elsewhere. [2]
The Centro de Investigaciones Digitales (CID, "Center for Digital Researches") was formed. The project was directed by Luis Carrasco and mostly designed by Orlando Ramos . The first version was designed using transistors , but after the introduction of integrated circuits , the design was changed.
The Z3 was a German electromechanical computer designed by Konrad Zuse in 1938, and completed in 1941. It was the world's first working programmable, fully automatic digital computer. [3]
IBM 704 vacuum-tube circuit module. The IBM 704 had a 38-bit accumulator, a 36-bit multiplier/quotient register, and three 15-bit index registers.The contents of the index registers are subtracted from the base address, so the index registers are also called "decrement registers".
The first 650 was installed on December 8, 1954 in the controller's department of the John Hancock Mutual Life Insurance Company in Boston. [16]The IBM 7070 (signed 10-digit decimal words), announced 1958, was expected to be a "common successor to at least the 650 and the [IBM] 705". [17]
Designed at the MIT Lincoln Laboratory [4] largely as an experiment in transistorized design and the construction of very SMALL core memory systems, the TX-0 was essentially a transistorized version of the equally famous Whirlwind, also built at Lincoln Lab.
IBM 701 competed with Remington Rand's UNIVAC 1103 in the scientific computation market. [7] In early 1954, a committee of the Joint Chiefs of Staff requested that the two machines be compared for the purpose of using them for a Joint Numerical Weather Prediction project.