IBM 355
dad
January 30, 2011
The IBM 355 was announced on September 14, 1956 as an addition to the popular IBM 650. It used the same mechanism as the IBM 350 and stored...
Sunday, January 30, 2011
Friday, January 28, 2011
Thursday, January 27, 2011
Wednesday, January 26, 2011
History of hard disk drives
dad
January 26, 2011
IBM in 1953 recognized the immediate application for what it termed a "Random Access File" having high capacity, rapid random acc...
Tuesday, January 25, 2011
Semiconductor Technology
dad
January 25, 2011
A semiconductor is any material that promotes the flow of electricity. The advent of semiconductor technology in the 1970s gave rise to tod...
Saturday, January 22, 2011
Magnetic Core Memory
dad
January 22, 2011
Magnetic core memory, the earliest form of random access memory, was developed in the late 1940s and early 1950s. This form of memory has ...
Thursday, January 20, 2011
The First Computer Memory
dad
January 20, 2011
The first electric computer (previous computers were mechanical) was invented between 1939 and 1942 by John Atanasoff and Clifford Berry. ...
Wednesday, January 19, 2011
The History of Random Access Memory
dad
January 19, 2011
RAM, or random access memory, is temporary storage space for data to be used by a computer's processor, unlike the hard drive, which pe...
Sunday, January 16, 2011
Reduced instruction set computing
dad
January 16, 2011
In the mid-1980s to early-1990s, a crop of new high-performance Reduced Instruction Set Computer (RISC) microprocessors appeared, influenced...
Friday, January 14, 2011
Multicore designs
dad
January 14, 2011
A different approach to improving a computer's performance is to add extra processors, as in symmetric multiprocessing designs, which ha...
Thursday, January 13, 2011
64-bit designs in personal computers
dad
January 13, 2011
While 64-bit microprocessor designs have been in use in several markets since the early 1990s, the early 2000s saw the introduction of 64-...
Wednesday, January 12, 2011
32-bit designs
dad
January 12, 2011
16-bit designs had only been on the market briefly when 32-bit implementations started to appear. The most significant of the 32-bit designs...
Monday, January 10, 2011
12-bit designs
dad
January 10, 2011
The Intersil 6100 family consisted of a 12-bit microprocessor (the 6100) and a range of peripheral support and memory ICs. The microproces...
Sunday, January 9, 2011
8-bit designs
dad
January 09, 2011
The Intel 4004 was followed in 1972 by the Intel 8008, the world's first 8-bit microprocessor. The 8008 was not, however, an extension ...
Saturday, January 8, 2011
Four-Phase Systems AL1
dad
January 08, 2011
The Four-Phase Systems AL1 was an 8-bit bit slice chip containing eight registers and an ALU It was designed by Lee Boysel in 1969 At the...
Friday, January 7, 2011
Gilbert Hyatt
dad
January 07, 2011
Gilbert Hyatt was awarded a patent claiming an invention pre-dating both TI and Intel, describing a "microcontroller". The patent ...
Thursday, January 6, 2011
Wednesday, January 5, 2011
Pico/General Instrument
dad
January 05, 2011
In 1971 Pico Electronics and General Instrument (GI) introduced their first collaboration in ICs, a complete single chip calculator IC for...
Tuesday, January 4, 2011
Monday, January 3, 2011
Sunday, January 2, 2011
Microprocessor
dad
January 02, 2011
A microprocessor incorporates most or all of the functions of a computer's central processing unit (CPU) on a single integrated circuit...
