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It was designed and invented by John Blankenbaker of Kenbak Corporation in 1970, and was first sold in early 1971. Unlike a modern personal computer, the Kenbak-1 was built of small-scale integrated circuits, and did not use a microprocessor. The system first sold for US$750. Only 44 machines were ever sold, though it's said 50 to 52 were built.
This "peripherals sold separately" approach is another defining characteristic of the home computer era. A first-time computer buyer who brought a base C-64 system home and hooked it up to their TV would find they needed to buy a disk drive (the Commodore 1541 was the only fully-compatible model) or Datasette before they could make use of it as ...
The Macintosh was the first successful mass-market all-in-one desktop personal computer with a graphical user interface, built-in screen, and mouse. [33] It was first demonstrated by Steve Jobs in the first of his famous Mac keynote speeches, and though the Mac garnered an immediate, enthusiastic following, some labelled it a mere "toy". [34]
VideoBrain Family Computer: Fairchild F8: 1977: TV: Cartridge, optional cassette [citation needed] Hungary Videoton TVC: Z80: 1986: TV: Cassette, floppy diskette [24] Hungary Microkey Primo Z80 (compatible) 1984: TV: Cassette [25] Norway West Computer AS West PC-800: 6502, Z80: 1984: TV, monitor: Cassette, floppy diskette: Apple II, CP/M [26 ...
One of the earliest electronic displays is the cathode-ray tube (CRT), which was first demonstrated in 1897 and made commercial in 1922. [1] The CRT consists of an electron gun that forms images by firing electrons onto a phosphor-coated screen. The earliest CRTs were monochrome and were used primarily in oscilloscopes and black and white ...
The 1970s and ’80s were filled with innovations such as VCRs, cordless phones, and personal computers that changed the way we live. It was also a time of tech flops and marketing missteps even ...
It's difficult to imagine life today without computers, but the personal computer was barely a reality just 33 years ago. On August 12th, 1981, IBM introduced their first PC model, also known as ...
[6] [7] The first machines were introduced on March 1, 1973, [8] and in limited production starting one decade before Xerox's designs inspired Apple to release the first mass-market GUI computers. The Alto is contained in a relatively small cabinet and uses a custom central processing unit (CPU) built from multiple SSI and MSI integrated circuits .