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PERSONAL COMPUTER : (The Altair 8800 ($439 ($2000 today), Extremely cheap…
PERSONAL COMPUTER :
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The Altair 8800
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Altair BASIC became newly formed Microsoft's first product 
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Due to its popularity, they provide extra memory, a paper tape reader and teletype interface
Less disputed
IBM
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The 5120 in 1980 was IBM's least-expensive computer (cost roughly $10,000)
IBM divisions had to compete with outside firms to build hardware and software for the new computer for the first time
1977 TRINITY
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Commodore PET 2001
Unique all-in-one design (combined computer, monitor, keyboard and tape drive into one device)
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Macintosh (1984)
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All-in-one computer booted not a command-line,text interface but graphical user interface.
Apple
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