What about its built-in features?
80 Column display.
143K internal Disk drive.
Interface for up to 4 disk drives.
RS232-C. Can be made to serve six devices with a
Color : All 16 colors with 192 lines of 280 dots per
Graphics: 16 shades of green with 192 lines of 560 dots per
Sound : 64 volume settings and over seven octaves.
Speaker : of speech producing quality.
Monitor ports: RGB or any video device; NTSC 80 column
Real time clock (location 3-B on mother board).
Two Joystick ports, A&B. Silentype printer can share port
Diagnostics in ROM.
Audio output: SOS Audio Driver can be rewritten to your
Built-in security mount to prevent theft.
256k RAM ability, 512k potential without strain.
Four expansion ports.