| Released | 1981 | |
| Technical Data | CPU: Z80A (4 Mhz) | |
| Clock: 3,25 Mhz | ||
| RAM: 1kB (extendable by 16kB, 32kB, 56kB) | ||
| ROM: 8 | ||
| Operating system: Proprietary | ||
| Text mode: 32x22 | ||
| Graphics mode: Pseudo graphics 64x44 | ||
| Colours: monochrome | ||
| Sound: none | ||
| Stuff I have | ZX81 (Computer) | |
| Users guide (Literature) | ||
| 1016, 16kB RAM (Memory Expansion) | ||
| Stuff I need | Technical info (Literature) | |
| Games, applications (Tape Software) | ||
| Picture | ||