Andrew Glaister  Andrew Glaister (born 4 July 1967 in Marlow, Buckinghamshire, England) is a video game programmer. He initially started programming games on the ZX81 and ZX Spectrum between 1981 and 1987, forming a company called Programmers Development Systems Ltd.  Andrew then worked as a developer for Viacom New Media, Kinesoft Development and FASA Interactive in the United States. When Microsoft Game Studios acquired FASA in 1999, Andrew continued to work for them as a Development Manager, in later years particularly for the Windows Graphics and Gaming team working on Direct X 10, display drivers and other features for Windows Vista. Andrew first started playing with electronics at age 10, and had built his first computer at age 12. This was a simple design based on the SC/MP 8060, in a wooden box with 8 LEDs, 8 input switches and 32 bytes of RAM from 4 74LS89 16x4 chips. In 1980 he acquired his first 'real' computer, a Microtan 65, and spent time using his friend's ZX80. In 1981 his parents purchased a ZX81 for Andrew, and within months he began selling his own games. This was done at first through one of the first computer stores in England–the Buffer Micro Shop in Streatham. Duplication was performed on C15 cassette tapes after school, with photocopied inserts. He managed four or five duplications a night, selling each for ten pounds. Andrew would then go by train from Crawley to Streatham and return with his profits. After meeting an employee from Silversoft in the shop one day, Andrew decided to let that company publish the games instead.  1982 saw the release of the ZX Spectrum. Glaister's first program for Silversoft was the video game "Orbiter", which sold 30,000 copies over Christmas. He started working with Softek (later EDGE Games), writing a number of games such as "Ostron". Using the money from those games, Andrew purchased an Osborne 1 and started to use Z80 assemblers to try to produce code for the Spectrum. He also used the built-in 300 baud modem to play (with friends Jez San and Fouad Katan) a new game called "MUD" - Multi User Dungeon, remotely logging into Essex University. Andrew is credited for becoming the second external 'Wizard' in the game (Jez San of Argonaut Games being the first.) In the late 80s, he worked on the development of an early IBM PC clone, the Apricot PC.