Archive for March 8, 2024
IBM Introduces PC-XT
March 8, 1983
IBM introduces the IBM Personal Computer XT, which stands for eXtended Technology. For a price of $4,995, it features a Intel 8088 processor, a 10MB hard drive, eight expansion slots, serial port, 128 kB RAM, 40Kb ROM, a keyboard, and one double-sided 360kB floppy drive.
Compact Disc Introduced
March 8, 1979
Philips introduced the Compact Disc to the world at a press conference in Eindhoven, Netherlands. Sony and Philips cooperated to standardize on a 12 cm diameter disc as it would have enough audio data capacity to hold Beethoven’s 74-minute Ninth Symphony.
The First Computer Operating System
March 8, 1955
Lead programmer Doug Ross demonstrates Director, the first permanent set of instructions for a computer on MIT’s Whirlwind. In essence this is the first concept of an operating system. Loaded by paper tape, Director would allow operators to load multiple problems in Whirlwind by taking advantage of newer, faster photoelectric tape reader technology, eliminating the need for manual human intervention in changing tapes on older mechanical tape readers.