Retrocomputing

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What made the ENIAC "programmable"?
Awarded yesterday
Why did the Motorola 68000 processor family fall out of use in personal computers in the 21st century?
Awarded 2 days ago
What's the most recent version of AmigaOS?
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Were there any PCs using the i376?
Awarded Sep 20 at 5:55
How to use TOSEC?
Awarded Sep 19 at 15:10
How could early computers perform data operations before John von Neumann proposed the concept of ALU?
Awarded Sep 18 at 15:57
PDP-11 Program to Execute Only in the Registers
Awarded Sep 18 at 14:20
IMPI Instruction set: is there any reference?
Awarded Sep 18 at 12:48
How was BOS on the Apple III different from SOS?
Awarded Sep 14 at 23:20
What is the arcade game played in the "The Boys Next Door" movie?
Awarded Sep 14 at 21:51
Why does Sinclair BASIC have all of the characters twice in the token table?
Awarded Sep 14 at 6:18
Why did the Sinclair QL keyboard lack a Delete key?
Awarded Sep 13 at 15:51
Where can I find the code of the ancestors of the WebKit family of web browsers?
Awarded Sep 12 at 8:36
What did order processing on a teletype look like?
Awarded Sep 11 at 12:46
How to view register contents on the PDP-11 console?
Awarded Sep 9 at 21:06
Why does the Manchester Baby have two jump instructions?
Awarded Sep 7 at 21:35
What is the timeline of NASA ground control computers?
Awarded Sep 5 at 5:18
Did the Z8000 ever hit the home computer market?
Awarded Sep 4 at 19:17
BASIC on the Vectrex?
Awarded Sep 4 at 1:46
How was dataflow analysis performed before SSA?
Awarded Sep 1 at 20:56
Is a normal B&W TV good enough for 80-column text?
Awarded Aug 31 at 14:40
How did the ZX Spectrum avoid key ghosting?
Awarded Aug 30 at 18:45
Why did 1990s-2000s LCD all use 60 Hz refresh?
Awarded Aug 29 at 13:30
Drawing Asteroids DVG vector objects
Awarded Aug 28 at 16:26
How were arcade games developed?
Awarded Aug 28 at 16:26
TMS9918 - why have separate data-in and data-out?
Awarded Aug 27 at 20:56
Why do Early DRAMs (e.g. 4116) have a negative Column Address Set-up Time?
Awarded Aug 25 at 14:36
ANTIC on-chip memory
Awarded Aug 22 at 14:30
Floppy drive detection on an IBM PC 5150 by PC/MS-DOS
Awarded Aug 21 at 11:04
Side-scrolling shooter game for the Macintosh from the 1990s
Awarded Aug 18 at 15:01
What are the electrical properties of the EAR and MIC sockets on a ZX Spectrum, and can they be connected between machines?
Awarded Aug 18 at 14:31
Relay computer performance
Awarded Aug 18 at 9:42
What's the convention for < > low/high-byte in 8-bit assembler?
Awarded Aug 17 at 2:45
Simple doubling of ZX80 RAM
Awarded Aug 14 at 23:23
Were there 6502 revisions B and C, and what were they like?
Awarded Aug 14 at 23:23
Single-stepping a Z80 - only first instruction is successful
Awarded Aug 12 at 11:07
Did the PC Engine/Turbografx Super CD-ROM have a standardized file system?
Awarded Aug 12 at 8:32
"Quit all programs, and then restart your computer" in the Windows 95 "Illegal operation" dialog
Awarded Aug 11 at 3:51
What was the cost difference between single and double sided 5.25" floppy drives?
Awarded Aug 10 at 16:35
Did the IBM ServiceFree really reach 80 MIPS in 1975?
Awarded Aug 10 at 6:26
Why do sprites lag behind a scrolling map in first-generation Pokémon games?
Awarded Aug 9 at 14:35
What could SID do that APU could not?
Awarded Aug 9 at 9:05
How did the Fairchild Channel F provide a 2K frame buffer?
Awarded Aug 8 at 19:07
What is the earliest computer technology to be referred to as "Artificial Intelligence"?
Awarded Aug 7 at 9:18
Did the IBM 1401 have much better code density than the 360?
Awarded Aug 5 at 15:51
How much did it cost to develop the 8-bit era graphics chips?
Awarded Aug 3 at 21:25
Where to obtain 3c509b empty boot ROM chip?
Awarded Aug 3 at 14:52
How did Altair 8800 interrupts work?
Awarded Aug 2 at 17:27
Why were OS/360 PL/I procedure calls so expensive in terms of stack space?
Awarded Aug 2 at 6:49
Classic Mac OS colors to modern RGB
Awarded Aug 1 at 17:21
How did "Super Wonder Boy (in Monsterland)" defeat the Multiface One?
Awarded Jul 28 at 12:16
Original instruction set for the first ARM processor
Awarded Jul 27 at 8:50
What is the most accurate way to map 6-bit VGA palette to 8-bit?
Awarded Jul 26 at 8:08
Why does the Commodore 64 have 4K of non-banked RAM at $C000?
Awarded Jul 25 at 20:40
Were cartridge slots cheaper at the back?
Awarded Jul 23 at 10:01
Did type-in-programs or type-in-listings teach programming in the 70s and 80s or was it just tedious typing of the source code?
Awarded Jul 19 at 23:56
Denys Fisher, of Spirograph fame, using a computer late 1976, early 1977
Awarded Jul 19 at 3:05
Commodore 64 breadbin plastic stands repair options?
Awarded Jul 19 at 2:06
"Intrusion countermeasures" in VMS 4.2
Awarded Jul 18 at 9:47
Undocumented ModR/M byte combinations
Awarded Jul 18 at 8:46
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