I roto i te 1972 i whakaturia e ratou to ratou kamupene tuatahi, i huaina Traf-O-Raraunga, i hokona e te rorohiko rudimentary ki te aroturuki me te tātari raraunga waka waka. 1980 I Gates rēhita i Harvard, Allen whai i te tohu i roto i te pūtaiao rorohiko i Washington State University, ahakoa i muri iho i mahue ia i te kura ki te mahi i roto i te Honeywell. te putanga o Hānuere 1975 o Popular Electronics whakaahuatia Micro Instrumentation me Telemetry Systems o (MITS) Altair 8800 microcomputer, i faauru Allen ki te whakaaro e taea e ratou hōtaka i te kaiwhakamaori BASIC mō te pūrere. i muri i te karanga i Gates kī ki te whai i te kaiwhakamaori mahi, ka tono MITS he whakaaturanga. mai i kore ratou i tetahi ano, Allen mahi i runga i te kaiwhakamaori mo te Altair. whakawhanakehia e ratou i runga i te kaiwhakamaori waka waka waka. i roto i te 1979 i roto i Harvard, Allen whai i te tohu i roto i roto i te pūtaiao pūtaiao rorohiko i Washington State University, ahakoa i muri i muri
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