Whiletrong computer-relatedkhi Easterphần eggslớn arenhững oftenquả foundtrứng inphục sinh về máy tính thường được tìm thấy trong [[softwarephần mềm]], occasionallychúng theythỉnh existthoảng incũng tồn tại trong [[Computerphần hardware|hardwarecứng]] orhoặc [[firmwareFirmware|phần sụn]] ofcủa certainmột devicessố thiết bị. OnTrên somemột số [[Personalmáy computer|hometính computers]]cá the [[BIOSnhân]], [[Read-only memory|ROM]] contains[[BIOS]] Eastercó eggschứa trứng phục sinh. NotableCác examplesví includedụ someđáng errantchú 1993ý bao gồm việc một số [[AMI BIOS AMI]] that1993 onkhông Novemberđúng 13tiêu chuẩn đã, vào ngày 13 tháng 11 năm 1993, proceededtophát playđi phát lại bài "Happy Birthday" viathông thequa loa PC speakerthay repeatedly instead ofvì [[bootingkhởi động máy tính]],<ref>{{cite web|url=http://www.f-secure.com/v-descs/birthday.shtml|title=Happy Birthday Description|website=F-Secure Labs|language=en|access-date=3 July 2012}}</ref> ascũng wellnhư asmột severalsố earlymẫu máy [[Apple Macintosh]] modelscó thatlưu havecác photosbức ofảnh thecủa developmentnhóm teamphát intriển theở trong ROM. TheseNhững quả trứng phục sinh Mac Easterđó eggsđã weređược well-publicizedquảng incáo therộng Macintoshrãi presstrong attờ thebáo timeMacintosh<ref>{{cite web|url=http://www.ralentz.com/old/mac/faqs/source/easter-eggs.html|title=Macintosh/Newton Easter Egg List|last1=Kendig|first1=Brain|date=1994|access-date=4 November 2017}}</ref> alongcùng withvới thenhững meanscách tothức accesstiếp cận themchúng, andvà weresao laternày recoveredđã byđược anmột nhóm tin tặc là NYC Resistor team,khôi aphục lại thông qua [[Hackerkỹ space|hackernghệ đảo collectivengược]],throughkĩ elaborate [[reverse engineering]]lưỡng.<ref>{{cite web|url=http://www.nycresistor.com/2012/08/21/ghosts-in-the-rom/|title=Ghosts in the ROM|author1=hudson|date=21 August 2012|website=NYC Resistor|archive-url=https://web.archive.org/web/20150217050949/http://www.nycresistor.com/2012/08/21/ghosts-in-the-rom/|archive-date=17 February 2015|access-date=23 March 2015}}</ref><ref>{{cite web|url=http://diyphotography.net/photographs-of-apple-team-found-in-25-years-old-macintosh-se|title=Photographs Of Apple Team Found In 25 Years Old Macintosh SE|last1=Tirosh|first1=Udi|date=22 August 2012|website=DIY Photography|archive-url=https://web.archive.org/web/20130226150444/http://diyphotography.net/photographs-of-apple-team-found-in-25-years-old-macintosh-se|archive-date=26 February 2013|access-date=4 November 2017|url-status=dead}}</ref> Similarly, the [[Radio Shack]] [[TRS-80 Color Computer 3|Color Computer 3]]'s ROM contains code which displays what looks like three [[Microware]] developers on a [[Control key|{{key press|Ctrl}}]]+[[Alt key|{{key press|Alt}}]]+[[Reset button|{{key press|Reset}}]] keypress sequence—a hard reset which discards any information currently in [[Random-access memory|RAM]].<ref>{{cite journal|date=May 1998|title=The World of 68' Micros, The - Vol. 5 Number 6|url=https://archive.org/stream/World_of_68_Micros_The_Vol._5_Number_6_1998-05_FARNA_Systems_US/World_of_68_Micros_The_Vol._5_Number_6_1998-05_FARNA_Systems_US_djvu.txt|publisher=FARNA Systems|volume=5|issue=6|page=5|access-date=4 November 2017}}</ref>
Several [[Oscilloscope|oscilloscopes]] contain Easter eggs. One example is the HP 54600B, known to have a ''[[Tetris (video game)|Tetris]]'' (1984) clone,<ref>{{cite web|url=http://www.eeggs.com/items/28801.html|title=HP 54600B Oscilloscope Easter Egg - Tetris Within Oscilloscope|author1=kcbhiw|date=24 July 2001|website=The Easter Egg Archive|language=en|access-date=4 November 2017}}</ref> and the HP 54622D contains an imitation of the ''[[Asteroids (video game)|Asteroids]]'' (1979) game named ''Rocks''.<ref>{{cite web|url=http://www.eeggs.com/items/34063.html|title=HP 54622D Easter Egg - HP Asteroids|author1=TonyK|date=24 April 2002|website=The Easter Egg Archive|language=en|access-date=11 March 2015}}</ref> Another is the [[Tektronix]] 1755A Vector and Waveform Monitor which displays swimming fish when Remote>Software version is selected on the CONFIG menu.<ref>{{cite web|url=http://www.eeggs.com/items/10043.html|title=Tektronix 1751 Digital Video Osciloscope / Vectorscope Easter Egg - Fishes Swimming on Screen|author1=Pavel|date=8 April 2000|website=The Easter Egg Archive|language=en|access-date=4 November 2017}}</ref>
