Acorn System 1
Computer
The Acorn System 1, initially called the Acorn Microcomputer, was an early 8-bit microcomputer for hobbyists, based on the MOS 6502 CPU, and produced by British company Acorn Computers from 1979. Wikipedia
Introductory price: £65 (kit), £75 (assembled)
Memory: 1152 bytes
Storage: CUTS cassette tape interface