IBM Model 5150
UNIT SOLD = millions

The original PC. 
In 1981, IBM introduced the PC into a chaotic personal computer field and set the standard almost overnight. IBM is still one of the largest PC manufacturers, but the majority of sales come from the PC industry at large, from companies such as Packard Bell, Compaq and Dell to mom and pop shops by the thousands. 
 This one, has been loaded with 640K RAM, but the very earliest had only 64K on their motherboards. 
The price in 1983 was US$1995.00
Operating system
  • Model 5150
  • SN; 0484781
  • Intel 8088 CPU
  • 2 x floppies, 360K
  • 640KB RAM
  • 1 parallel port
  • 1 serial port
The back of the 5150