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Charles babbage
Charles Babbage, FRS was an English polymath. A mathematician, philosopher, inventor and mechanical engineer, Babbage is best remembered for originating the concept of a programmable computer -
first mass-marketed pc
In 1968, Hewlett Packard began marketing the first mass-marketed PC and the first desktop computer, the HP 9100A -
first personal computer
In 1975, Ed Roberts coined the term "personal computer" when he introduced the Altair 8800. Although the first personal computer is considered by many to be the KENBAK-1, which was first introduced for $750 in 1971. The computer relied on a series of switches for inputting data and output data by turning on and off a series of lights. -
IBM 5100
The IBM 5100 is recognized as the first portable computer and was first released in September 1975. The computer weighed 55 pounds and had a five inch CRT display, tape drive, 1.9MHz PALM processor, and 64KB of RAM. The picture is an ad of the IBM 5100 taken from a November 1975 issue of scientific america -
The first IBM personal computer
IBM introduced its first personal computer called the IBM PC in 1981.The computer was code named and still sometimes referred to as the Acorn and had a 8088 processor, 16 KB of memory, which was expandable to 256 and utilized MS-DOS.
