Check out the price ( Price: US $1,795), that's a lot of money in 1981!!
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 AC outlet for power. It was the beginning of Laptop Computer.
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
I remember seeing one of those carried around by a guy in a suit, and we all crowded around him to marvel at those tiny green characters you could barely read. Wow, thanks for the flashback.
EDIT: had to go find it and here it is: http://oldcomputers.net/sx64.html
It's amazing how fast computer has evolved, the 80s is not so distance away, but the thing sure looked like it's from the 60s era LOL
This remind me of old mobile phone: