The Sinclair ZX Spectrum was one of the most popular and influential home computers of the 1980s. Known for its affordability, vibrant 8-bit graphics, and extensive library of games, the ZX Spectrum helped ignite the home computing boom in the UK. With titles like Jet Set Willy, Manic Miner, and Dizzy, it became a beloved platform for both casual gamers and hobbyist programmers.
Hardware Specifications
Processor: Zilog Z80A running at 3.5 MHz
Graphics: 256×192 pixel resolution with 15 colors (using attribute clash techniques)
Memory: 16 KB or 48 KB of RAM (depending on model)
Storage: Cassette tapes for software loading (with speeds up to 1500 baud)
Audio: Single-channel beeper sound (capable of generating simple tones)
Connectivity: Expansion port for peripherals, cassette input/output, RF output to connect to a TV
Keyboard: Rubber membrane keyboard with 40 keys
Original Release Date: 23rd April 1982
Discontinued: 1992
Cost (New in 1982): £125 for the 16k version and £175 for the 48k version
Cost (In 2024 Price): £500 for the 16k version and £700 for the 48k version
Modifications I have performed:
Rebuilt using modern components and replica motherboard (original CPU and ULA)
Cost to me for computer £35.00
Cost to me for repairs and upgrades £109.53
Rebuilt entire machine using a modern made replica Issue 3A board with all new components apart from the CPU, ULA and ROM chips.
Fitted replacement keyboard membrane
