- Sinclair - Manuals - DataServe Retro
- Operating Manual for the R&S FSP Spectrum.
- Aperio Image Analysis User's Guide
- MicroVersaTrip Plus and MicroVersaTrip PM Trip Units
Sinclair - Manuals - DataServe Retro
The Spectrum was released as eht different models, ranging from the entry level with 16 KB RAM released in 1982 to the ZX Spectrum 3 with 128 KB RAM and built in floppy disk drive in 1987; together they sold in excess of 5 million units worldwide (not counting clones).
Operating Manual for the R&S FSP Spectrum.
The Spectrum was among the first mainstream-audience home computers in the UK, similar in snificance to the Commodore 64 in the USA.
Aperio Image Analysis User's Guide
The Spectrum is based on a Zilog Z80 A CPU running at 3.5 MHz (or NEC D780C-1 clone).
MicroVersaTrip Plus and MicroVersaTrip PM Trip Units
The orinal model has 16 KB (16×1024 bytes) of ROM and either 16 KB or 48 KB of RAM.
Spectrum plus user manual:
Rating: 95 / 100
Overall: 97 Rates