Specifications
- CPU: MOS Technology 7501, 1.77 MHz (PAL) / 1.79 MHz (NTSC)
- RAM: 64 kB, of which nearly 60 kB were available to BASIC users
- ROM: 64 kB including Commodore BASIC 3.5, a machine code monitor, and TRI-Micro's "3 Plus 1" (word processor, spreadsheet, database, graphing)
- Text mode: 40×25 characters (PETSCII)
- Graphics modes: 160x200 (lores) / 320×200 (hires), 121 colors
- I/O ports:
- Tape connector (for Commodore 1531 Datassette with 7-pin mini-DIN; incompatible with C64)
- ROM cartridge slot (incompatible with C64)
- Two 8-pin mini-DIN game controller ports (incompatible with C64)
- Commodore serial bus (compatible with C64)
- User port (for modems and nonstandard devices, incompatible with C64)
- Composite video connector including S-Video and mono audio signal (compatible with C64)
- RF modulator to TV antenna connector (obviously compatible with C64)
- The power connector is compatible with C64 power supplies in some Plus/4s and takes the same 9V AC and 5V DC voltages, but uses a non-standard "Square DIN" plug, like the C128, in most Plus/4s.
Read more about this topic: Commodore Plus/4