Released in 1981 by the Osborne Computer Corporation, the Osborne 1 is considered to be the first true portable computer - it closes-up for protection, and has a carrying handle. It even has an optional battery pack, so it doesn't have to plugged into the 110VAC outlet for power.
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Introduced: April 1981
Price: US $1,795
Weight: 24.5 pounds
CPU: Zilog Z80 @ 4.0 MHz
RAM: 64K RAM
Display: built-in 5" monitor
53 X 24 text
Ports: parallel / IEEE-488
modem / serial port
Storage: dual 5-1/4 inch, 91K drives
OS: CP/M
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