| ZX Spectrum | |||
|---|---|---|---|
| Type: | Home computer | ||
| Manufacturer(s) | Sinclair Research | ||
| CPU | Z80 | ||
| RAM | 16 KB, 48 KB or 128 KB | ||
The Sinclair ZX Spectrum was a popular British computer in the 1980's. The original machine had a
Models
Sinclair models
Spectrum 16K/48K
Spectrum +
Spectrum 128
The Spectrum 128 apparently had two BIOS ROMs each of which was 16,384 Bytes.
Amstrad Models
Spectrum +2
The Spectrum +2 apparently had two BIOS ROMs each of which was 16,384 Bytes.
Spectrum +3
The four BIOS ROMs for the original +3 are each 16 KB. The +3e divided the BIOS ROMs into two units.
Firmware versions
|
Sinclair computers, derivatives, and clones (ZX80/81, ZX Spectrum, and QL clones) | |
| Sinclair Research | ZX80 - ZX81 - ZX Spectrum, Spectrum+, Spectrum 128 - QL |
| Amstrad | ZX Spectrum +2 - ZX Spectrum +3 |
| Timex Sinclair | TS 1000 |
| Other | Jupiter Ace - One Per Desk - CST Thor - Q40/Q60 |
| Sinclair Peripherals | ZX Printer - ZX Interface 1 - ZX Interface 2 - Microdrive |