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比尔盖子

Sysadmin of Beijing GNU/Linux User Group. FLOSS and electronics hobbyist. Code monkey who literally has zero knowledge on CS, programming, and electronics. But I do have a bit of experience, not much, but occasionally can help someone.

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  • Beijing, China
  • biergaizi.info
  • Member for 10 months
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  • Last seen 10 hours ago

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Top posts (8) All Questions Answers | Votes Newest

57 When was the famous “sudo warning” introduced? Under what background? By whom? Oct 9 '19
27 Why wasn't ASCII designed with a contiguous alphanumeric character order? Jun 26 '19
24 How do I Interface a PS/2 Keyboard without Modern Techniques? Mar 20 '19
18 How did the Altair 8800 front panel load the program counter? Aug 31 '19
16 In the original Z80 layout, where are the “traps” located? And what are their effects? May 29 '19
8 Why do Early DRAMs (e.g. 4116) have a negative Column Address Set-up Time? Jun 11 '19
6 How to teach the Z80 to count milliseconds and microseconds like Arduino? Jun 11 '19
5 Why could you hear an Amstrad CPC working? Apr 10 '19

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