Merry Christmas
dad
December 24, 2011
Saturday, December 24, 2011
Sunday, October 9, 2011
1950s - 1970s
dad
October 09, 2011
The IBM 350 Disk File, invented by Reynold Johnson, was introduced in 1956 with the IBM 305 RAMAC computer. This drive had fifty 24 inch pla...
Tuesday, August 23, 2011
IBM 3390 direct access storage device
dad
August 23, 2011
Models A14, A18, B14, B18, B1C, A24, A28, B24, B28 and B2C announced November 14, 1989 ...
Wednesday, June 29, 2011
Sunday, May 22, 2011
IBM 3370 direct access storage device
dad
May 22, 2011
IBM 3370 Direct Access Storage Device Models A1, B1, A11, and B11 announced January 30, 1979 and withdrawn August 5, 1986 Models A2...
Sunday, April 24, 2011
IBM 3350 direct access storage
dad
April 24, 2011
Models A2, A2F, B2 & B2F announced July 15, 1975 and withdrawn September 5, 1994 Models C2 and C2F announc...
Friday, April 15, 2011
Friday, April 8, 2011
Tuesday, March 29, 2011
Sunday, March 27, 2011
IBM 2314/2319
dad
March 27, 2011
The IBM 2314 Disk Access Storage Facility was introduced on April 22, 1965, one year later after the System/360 introduction. It was used w...
Sunday, March 20, 2011
Sunday, March 13, 2011
Tuesday, February 8, 2011
IBM 1311 Disk Storage Drive
dad
February 08, 2011
The IBM 2302 was the S/360 version of the 1302, with track formatting in accordance with S/360 DASD architecture rather than 7000 series arc...
Sunday, February 6, 2011
Friday, February 4, 2011
Thursday, February 3, 2011
Tuesday, February 1, 2011
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...
