Apple III
Introduced: May 1980
Released: Spring 1981
Price: US $3495 w/128K RAM
US $3815 with monitor
How many? 65,000 TOTAL (four year)
CPU: Synertek 6502A, 2.0 MHz
RAM: 128K, 512K max.
Display: Color composite video
16 colors at 280 X 192.
16 shades at 560 X 192
Ports: Two serial ports
External floppy port
Expansion: Four internal slots
Storage: Internal 143k 5-1/4 inch floppy
External floppy drive
OS: Apple SOS (Sophisticated OS)

http://oldcomputers.net/appleiii.html