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CSIRAC
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{{Short description|Australia's first digital computer, and the fifth stored-program computer in the world}}{{More citations needed|date=May 2025}} {{Use dmy dates|date=June 2020}} {{Use Australian English|date=August 2019}} {{Infobox information appliance | name = CSIRAC | title = | aka = CSIR Mk 1 | logo = | image = CSIRAC-Pano,-Melb.-Museum,-12.8.2008.jpg | caption = CSIRAC, Australia's first digital computer, as displayed at the [[Melbourne Museum]] | developer = [[CSIRO]] | manufacturer = | family = | type = [[Digital computer]] | generation = | releasedate = c.{{Start date|1949}} | lifespan = | price = | discontinued = | unitssold = | unitsshipped = 1 | media = | os = | power = | soc = | cpu = | memory = | storage = | memory card = | display = | graphics = | sound = | input = | controllers = | camera = | touchpad = | connectivity = | platform = | service = | dimensions = | weight = | topgame = | compatibility = | predecessor = | successor = | related = | website = <!--{{URL|example.org}}--> }} '''CSIRAC''' ({{IPAc-en|Λ|s|aΙͺ|r|Γ¦|k}}; '''''C'''ommonwealth '''S'''cientific and '''I'''ndustrial '''R'''esearch '''A'''utomatic '''C'''omputer''), originally known as '''CSIR Mk 1''', was [[Australia]]'s first [[digital computer]], and the fifth [[stored-program computer]] in the world.<ref>{{cite web | url = https://cis.unimelb.edu.au/about/csirac | title = CSIRAC: Our first computer |website=School of Computing and Information Systems, [[University of Melbourne]] | date = 12 August 2021 }}</ref> It is the oldest surviving [[History of computing hardware#First-generation von Neumann machines|first-generation electronic computer]]<ref name=VHD/> (the [[Z4 (computer)|Zuse Z4]] at the [[Deutsches Museum]] is older, but was [[Mechanical computer#Electro-mechanical computers|electro-mechanical]], not [[List of vacuum tube computers|electronic]]), and was the first in the world to play [[digital music]].<ref>{{cite web |url=http://www.csiro.au/science/ps4f.html |title=CSIRAC: Australia's first computer |access-date=2007-12-21 |archive-url=https://web.archive.org/web/20071116112251/http://www.csiro.au/science/ps4f.html |archive-date=2007-11-16 |url-status=dead }}</ref><ref name="beebmus">{{cite news|title=Oldest computer music unveiled |url=http://news.bbc.co.uk/1/hi/technology/7458479.stm| date=2008-06-17|access-date=2008-06-18|work=[[BBC News Online]]|last=Fildes|first=Jonathan }}</ref><ref name="Early Computer Music Experiments in Australia, England and the USA">{{cite web|title=MuSA 2017 - Early Computer Music Experiments in Australia, England and the USA |url=https://www.academia.edu/34234640 |work=[[MuSA Conference]] |access-date=18 October 2017 |date=9 July 2017}}</ref><ref name="Doornbusch">{{cite journal|last=Doornbusch|first=Paul|title= Early Computer Music Experiments in Australia and England |journal=[[Organised Sound]]|year=2017|volume=22|issue=2|pages=297β307 [11]|publisher=[[Cambridge University Press]]|doi=10.1017/S1355771817000206|doi-access=free}}</ref><ref name=":0"/><ref name="abc.net.au/radionational/sum-of-all-parts/13.1"/> After being exhibited at [[Melbourne Museum]] for many years, it was relocated to [[Scienceworks (Melbourne)|Scienceworks]] in 2018 and is now on permanent display in the Think Ahead gallery.<ref name="museumsvictoria.com.au">{{Cite web|url=https://museumsvictoria.com.au/scienceworks/learning/school-programs-and-resources/csirac-the-worlds-oldest-intact-first-generation-electronic-computer/|title=CSIRAC - the world's oldest intact first-generation electronic computer|website=Museums Victoria}}</ref> A comprehensive source of information about the CSIRA collection, its contributors and related topics is available from [[Museums Victoria]] on their Collections website.<ref name="collections.museumsvictoria.com.au">{{Cite web|url=https://collections.museumsvictoria.com.au/articles/3145|title=CSIRAC Collection|website=Museums Victoria Collections}}</ref>
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