The ZX8302 was a ULA integrated circuit designed for the Sinclair QL microcomputer. Also known as the QL's "Peripheral Chip", it interfaced the CPU to the Microdrives, QLAN local area network interface and RS-232 ports (transmit only) and also provided a real-time clock. The ZX8302 was IC23 on the QL motherboard. A Gate array or Uncommitted Logic Array (ULA) is an approach to the design and manufacture of application_specific integrated circuits (ASICS). ... Integrated circuit showing memory blocks, logic and input/output pads around the periphery A monolithic integrated circuit (also known as IC, microchip, silicon chip, computer chip or chip) is a miniaturized electronic circuit (consisting mainly of semiconductor devices, as well as passive components) that has been manufactured in the surface... A Sinclair QL The Sinclair QL (for Quantum Leap), was a personal computer launched by Sinclair Research in January 1984, as the successor to the ZX Spectrum. ... The Commodore 64 was one of the most popular microcomputers of its era, and is the best selling home computer of all time. ... The ZX Microdrive was a tape-loop storage system from the 1980s, used in Sinclair Researchs ZX Spectrum and Sinclair QL home computers. ... Local area network scheme A local area network (LAN) is a computer network covering a local area, like a home, office, or group of buildings[1]. Current LANs are most likely to be based on switched IEEE 802. ... RS-232 (also referred to as EIA RS-232C or V.24) is a standard for serial binary data interchange between a DTE (Data terminal equipment) and a DCE (Data communication equipment). ... A motherboard, also known as a mainboard, system board, or logic boards on Apple Computers, and sometimes abbreviated as mobo (generally credited to the magazine Maximum PC) is the central or primary circuit board making up a complex electronic system, such as a modern computer. ...

External links

• http://www.worldofspectrum.org/qlfaq/Hardware