Sharp X1
| Manufacturer | Sharp Corporation |
|---|---|
| Type | Home computer |
| Released | 1982 |
| Introductory price | ¥155,000 |
| Discontinued | 1987 |
| Media | Compact Cassette or floppy disk |
| Operating system | Hu-BASIC, CP/M |
| CPU | Sharp Z80 A @ 4 MHz |
| Memory | 6 KB ROM, 64 KB RAM, 4–48 KB Video RAM |
| Removable storage | Cassette tape, floppy disc |
| Display | Text: 40 or 80 x 25 characters; Graphics: 320 or 640 x 200; 8 colors |
| Sound | AY-3-8910 or Yamaha YM2149 (YM2151 in later revisions) |
| Input | Keyboard, joysticks |
| Controller input | 2 joysticks |
| Connectivity | Printer port, joystick port, audio out |
| Power | Built in PSU |
| Predecessor | Sharp MZ series |
| Successor | X68000 |
The X1 (エックスワン, Ekkusuwan), sometimes called the Sharp X1 or CZ-800C, is a series of home computers released by Sharp Corporation from 1982 to 1987. It is based on a Zilog Z80 CPU.
The RGB display monitor for the X1 had a television tuner, and a computer screen could be superimposed on TV. All the TV functions could be controlled from a computer program. The character font was completely programmable (PCG) with 4-bit color, and was effectively used in many games. The entirety of the VRAM memory was mapped on to the I/O area, so it was controlled without bank switching. These features made the X1 very powerful for game software.