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What was the primary input device used by the ZX Spectrum?
The Spectrum is based on a Zilog Z80, a CPU running at 3.5 MHz (or NEC D780C-1 clone). The original model has 16 KB (16×1024 bytes) of ROM and either 16 KB or 48 KB of RAM.
How much RAM does a ZX81 have?
ZX81
| Developer | Sinclair Research |
|---|---|
| Operating system | Sinclair BASIC |
| CPU | Z80 @ 3.25 MHz |
| Memory | 1 KB (64 KB max. 56 KB usable) |
| Storage | External Compact Cassette recorder at a claimed 250 bps or an average 300 bps |
What is the cheapest spectrum TV package?
TV Select
What is the cheapest Spectrum TV package? TV Select is the cheapest Spectrum TV package starting at $44.99 per month for 125+ HD channels including ESPN, Discovery Channel, CNN, HGTV, Lifetime, TLC and many more. From $44.99/mo.
Is the Sinclair ZX Spectrum compatible with Timex?
Sinclair licensed the Spectrum design to Timex Corporation in the United States. An enhanced version with better sound, graphics and other modifications was marketed in the US by Timex as the Timex Sinclair 2068. Timex’s derivatives were largely incompatible with Sinclair systems.
Who was the manufacturer of the Sinclair Spectrum?
Sinclair licensed the Spectrum design to Timex Corporation in the United States. An enhanced version with better sound, graphics and other modifications was marketed in the USA by Timex as the Timex Sinclair 2068. Timex’s derivatives were largely incompatible with Sinclair systems.
Where is the Sinclair BASIC interpreter stored in ROM?
The machine’s Sinclair BASIC interpreter is stored in ROM (along with fundamental system-routines) and was written by Steve Vickers on contract from Nine Tiles Ltd. The Spectrum’s chiclet keyboard (on top of a membrane, similar to calculator keys) is marked with BASIC keywords.
What was the difference between the ZX Spectrum and ZX81?
The cassette interface was much more advanced, saving and loading around five times faster than the ZX81 (1500 bits per second compared to 307), and unlike the ZX81, the Spectrum could maintain the TV display during tape storage and retrieval operations.