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  2. TRS-80 Model II - Wikipedia

    en.wikipedia.org/wiki/TRS-80_Model_II

    Detachable keyboard. Dimensions. 14 x 21 1/4 x 23 1/2 inch. The TRS-80 Model II is a computer system launched by Tandy in October 1979, and targeted at the small-business market. It is not an upgrade of the original TRS-80 Model I, but a new system. The Model II was succeeded by the compatible TRS-80 Model 12, Model 16, Model 16B, and the Tandy ...

  3. Macintosh External Disk Drive - Wikipedia

    en.wikipedia.org/wiki/Macintosh_External_Disk_Drive

    US$495. The Macintosh External Disk Drive is the original model in a series of external -inch floppy disk drives manufactured and sold by Apple Computer exclusively for the Macintosh series of computers introduced in January 1984. Later, Apple would unify their external drives to work cross-platform between the Macintosh and Apple II product ...

  4. Disk II - Wikipedia

    en.wikipedia.org/wiki/Disk_II

    Disk II drives. The Disk II Floppy Disk Subsystem, often rendered as Disk ][, is a 5 + 1 ⁄ 4-inch floppy disk drive designed by Steve Wozniak at the recommendation of Mike Markkula, and manufactured by Apple Computer It went on sale in June 1978 at a retail price of US$495 for pre-order; it was later sold for $595 (equivalent to $2,780 in 2023) including the controller card (which can ...

  5. Timeline of computing 1980–1989 - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_computing_1980...

    IBM launch the double-sided 320 KB floppy disk drive. July 1982 UK US Timex/Sinclair introduced the first computer touted to cost under $100 marketed in the U.S., the Timex Sinclair 1000. In spite of the flaws in the early versions, half a million units were sold in the first 6 months alone, surpassing the sales of Apple, Tandy, and Commodore ...

  6. Kaypro - Wikipedia

    en.wikipedia.org/wiki/Kaypro

    The Kaypro IV and later the Kaypro 4 have two double-sided disks. The Kaypro 4 was released in 1984, and was usually referred to as Kaypro 4 '84, as opposed to the Kaypro IV, released one year earlier and referred to as Kaypro IV '83. The Kaypro IV uses different screen addresses than the Kaypro II, meaning software has to be specific to the model.

  7. Commodore PET - Wikipedia

    en.wikipedia.org/wiki/Commodore_PET

    CBM-II. The Commodore PET is a line of personal computers produced starting in 1977 by Commodore International. [3] A single all-in-one case combines a MOS Technology 6502 microprocessor, Commodore BASIC in read-only memory, keyboard, monochrome monitor, and, in early models, a cassette deck . Development of the system began in 1976, and it was ...

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