Retrocomputing

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earned this badge 213 times.
Why did Windows 3.0 fail in Japan?
Awarded Mar 6 at 3:36
Identify these old accounting machines
Awarded Feb 27 at 2:10
Which undocumented 8085 instructions is Steven Morse referring to in "In The Beginning"?
Awarded Feb 24 at 8:15
Was there a keyboard layout starting with "TBSY"?
Awarded Feb 13 at 8:31
Did Pascal programmers really move on to Java in the 90s?
Awarded Feb 12 at 14:27
Who invented garbage collection?
Awarded Jan 21 at 17:51
When was the term ‘directory’ replaced by ‘folder’?
Awarded Jan 18 at 13:05
References for the complexity of the COBOL language
Awarded Jan 8 at 19:55
Did anyone ever run out of stack space on the 6502?
Awarded Jan 4 at 15:42
Why does CP/M use CALL 0005h for its syscalls?
Awarded Jan 2 at 23:32
When was the CHS (cylinder - head - sector) system invented and what was before it?
Awarded Dec 31, 2022 at 11:42
How could the SNES take advantage of in-cartridge coprocessors that weren't invented when the SNES came out?
Awarded Dec 21, 2022 at 3:11
Why was USB 1.0 incredibly slow even for its time?
Awarded Dec 13, 2022 at 15:18
What motivated stack being invented originally?
Awarded Dec 13, 2022 at 8:09
Why was the DOS kernel discarded?
Awarded Nov 21, 2022 at 1:21
Did underclocking the early Z80 chips improve yield?
Awarded Nov 17, 2022 at 20:08
Why was video, audio and picture compression the poorest when storage space was the costliest?
Awarded Nov 8, 2022 at 10:26
Why was there a need for separate I/O address space in addition to a memory address space already?
Awarded Nov 1, 2022 at 11:22
What was the original unix font?
Awarded Oct 26, 2022 at 19:32
Why does this ZX Spectrum machine code "Hello World" routine not produce the expected result?
Awarded Oct 26, 2022 at 11:06
Was there a way to play an hourly custom sound on Macs circa 1985-1995?
Awarded Oct 18, 2022 at 16:36
Anyone up for decompiling some 8080 code for Kaleidoscope?
Awarded Oct 4, 2022 at 0:17
What are the three or four holes on the back of a 3.5inch floppy disk indicating and used for?
Awarded Sep 29, 2022 at 13:45
Which BASIC interpreters support techniques for hybrid programming in Assembly?
Awarded Sep 23, 2022 at 21:49
Who is credited for the creation of Assembly Language?
Awarded Sep 15, 2022 at 19:11
Why does the VIC-20 have 5KiB of RAM?
Awarded Sep 15, 2022 at 0:27
Why does OpenGL use counterclockwise order to determine a triangle's front face by default?
Awarded Aug 29, 2022 at 3:43
IBM PC Alt + numpad for entering character codes: firmware, BIOS or OS?
Awarded Aug 17, 2022 at 6:58
What's the origin of process return status 0 meaning success?
Awarded Aug 10, 2022 at 21:10
What date is 74029 on an IBM Mainframe?
Awarded Jul 22, 2022 at 17:06
Was 36-bits needed for LISP?
Awarded Jul 21, 2022 at 13:36
Why are the Intel 8080's rotate instructions called opposite to intuition?
Awarded Jul 5, 2022 at 2:46
Does any computer resemble the model taught in UK secondary education?
Awarded Jul 4, 2022 at 15:31
Why does NumLock exist?
Awarded Jul 2, 2022 at 13:09
What is a "sympathetic bit"?
Awarded Jun 3, 2022 at 12:17
Why does the x86 not have an instruction to obtain its instruction pointer?
Awarded May 24, 2022 at 9:41
Why have MS-DOS device drivers if the ROM BIOS provides access to the same devices already?
Awarded May 16, 2022 at 21:55
When/why did computers come to have push-button main power switches where on and off is the same push action?
Awarded Apr 24, 2022 at 6:31
Why is slash so commonly used in old systems' abbreviations?
Awarded Apr 19, 2022 at 17:03
Why was the DOS clock device renamed from CLOCK into CLOCK$?
Awarded Apr 5, 2022 at 3:51
What was the point of Apple Pascal having its own file system?
Awarded Apr 1, 2022 at 20:28
What was the first Object Oriented programming language?
Awarded Mar 30, 2022 at 0:02
Why are these DOS console drivers wasting precious bytes?
Awarded Mar 29, 2022 at 15:10
The two types of Return keys on keyboard layouts
Awarded Feb 25, 2022 at 14:45
Origin of the 8.3 file names scheme
Awarded Feb 19, 2022 at 19:17
Typical dpi of dot matrix printers available in the 1980s
Awarded Feb 18, 2022 at 20:37
Compatibility of printers with HP54645D oscilloscope?
Awarded Feb 18, 2022 at 12:12
Why are the magnetic floppy disk drives (FDD) heads not frictionless?
Awarded Jan 17, 2022 at 13:02
Why did Nintendo name its console the "Famicom"?
Awarded Jan 12, 2022 at 20:08
What is a Dumb Terminal?
Awarded Jan 11, 2022 at 19:35
Were there ever any dumb terminals in a portable form factor?
Awarded Jan 7, 2022 at 20:56
What are the "virtual machines" that were running on 80386 and later x86 CPUs before full hardware virtualization?
Awarded Jan 5, 2022 at 16:27
Which is the first non-assembly (and binary) language to write operating system(s)?
Awarded Jan 4, 2022 at 20:17
What kind of RAM stick is this?
Awarded Jan 4, 2022 at 12:03
What is a good COBOL specification to target when aiming to support ~75% or more of mainframe and minicomputer software bases?
Awarded Dec 27, 2021 at 21:25
How do I connect a command prompt to a serial line in MS-DOS 6.22?
Awarded Dec 23, 2021 at 23:11
Did anyone ever use the extra set of registers on the Z80?
Awarded Dec 14, 2021 at 19:58
How did the 6502 ALU perform a decrement?
Awarded Dec 1, 2021 at 5:42
Why did the Z80 break 8080 compatibility?
Awarded Nov 24, 2021 at 2:57
Cambridge Z88 Production Run
Awarded Nov 16, 2021 at 9:21
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