Retrocomputing Beta

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Awarded 609 times.
Were there any 8-bit CPUs with 24-bit addressing?
Awarded 2 days ago
When was DEFUN added to Lisp?
Awarded 2 days ago
What is the reason the 8051 was not used in 8-bit computers?
Awarded Feb 18 at 17:25
Origin of “640K RAM is enough” quote
Awarded Feb 18 at 14:55
Does the Z80 allow interrupts after processing and ignoring a 0xdd prefix?
Awarded Feb 18 at 7:35
How to pass data pointer to subroutine to use with Absolute,Y addressing?
Awarded Feb 16 at 8:25
For TRS-80 Color Computer joystick buttons, is it correct to check the first or second bit of the value at PEEK(65280)?
Awarded Feb 14 at 16:00
Using generic SMPS adaptor on old IBM Thinkpad makes strange symptoms
Awarded Feb 13 at 15:00
Zilog Z80 estimated time discrepancy
Awarded Feb 11 at 11:00
How can a Z80 assembly program find out its own memory address?
Awarded Feb 10 at 22:10
Where to share/who may be interested in IEEE 16 bit half float library for Zilog Z80?
Awarded Feb 9 at 16:35
Zilog Z80 freezes while binary counting up to 65 536 (2^16)
Awarded Feb 4 at 17:50
What DOS games used Mode X as described by Michael Abrash?
Awarded Jan 29 at 21:35
Hard coded hard drive BIOS geometries
Awarded Jan 28 at 11:40
ca65 vs tass syntax: converting a hex address to decimal?
Awarded Jan 28 at 4:10
In an Apple IIc, how is memory beyond 128K addressed?
Awarded Jan 27 at 15:50
Looking for a Ninja PC Game where hero arrives in hang glider
Awarded Jan 25 at 21:45
386 PC: reads MBR, cannot boot DOS 6.22 [duplicate]
Awarded Jan 25 at 21:45
Looking for a 90s Macintosh game
Awarded Jan 24 at 12:30
NES chips usage
Awarded Jan 23 at 18:45
Documentation for the MIT PDP-1X OS
Awarded Jan 23 at 11:05
Does the TELCOM program on the Tandy Model 100 support any Unix terminal–like control codes?
Awarded Jan 18 at 1:05
Did DOS zero out the BSS area when it loaded a program?
Awarded Jan 16 at 4:10
How did the 6502 ALU perform a decrement?
Awarded Jan 15 at 5:15
Fan for old socket A Athlon cooler [closed]
Awarded Jan 10 at 20:30
What home computers offered an adjustable tape baud rate
Awarded Jan 8 at 2:15
Bad floppy drive in T1910CS 486 laptop
Awarded Jan 6 at 2:55
Searching for an old planet shooter game
Awarded Jan 5 at 22:50
Why weren't audio decoders used to create a makeshift internet in the 70 and 80s?
Awarded Jan 3 at 17:25
Z80 Interrupt Mode 2 - How does the CPU know the device address of the interrupting device to execute IN A,(*)?
Awarded Dec 30 '19 at 20:10
Advice for heatsinking an old CPU
Awarded Dec 28 '19 at 23:25
Where can I find “Nemesis II”, the sequel to “Nemesis”, an old CP/M game?
Awarded Dec 25 '19 at 21:15
Using Integer Basic on Apple II Plus without a Language Card?
Awarded Dec 25 '19 at 17:25
What was the first PC/computer to have sound recording & playback support?
Awarded Dec 22 '19 at 23:00
Serial Braille DOS driver on XP or higher?
Awarded Dec 19 '19 at 7:00
How did the Amiga DCTV work
Awarded Dec 18 '19 at 21:20
64GB compact flash not booting up in DOS
Awarded Dec 18 '19 at 10:25
What is the last VLC Media Player version for Windows 98/98SE/ME? [closed]
Awarded Dec 16 '19 at 4:35
When was the first 3 state IC produced?
Awarded Dec 14 '19 at 14:40
Is this really an Atari 2600?
Awarded Dec 11 '19 at 20:00
Why didn't the 6502 have increase/decrease opcodes for A?
Awarded Dec 11 '19 at 12:20
Getting data from Seagate ST-238R drive
Awarded Dec 8 '19 at 4:20
What is the best way to connect an old Tandberg QIC tape drive using today's computers?
Awarded Dec 7 '19 at 4:30
Using MAI DT4315A as a terminal for RaspberryPI or other linux system
Awarded Dec 5 '19 at 17:40
How can I clean the RF-Out jack of the SNES
Awarded Dec 1 '19 at 11:30
What is the first (say early) use of switches (mechanical or electromechanical) for sake of processing (like automatic motor control)simple data?
Awarded Nov 27 '19 at 12:55
Monochrome CRT Repair - Horizontal offset
Awarded Nov 23 '19 at 12:50
Were there ever 12-, 24-, 48-, etc bit processors?
Awarded Nov 21 '19 at 15:55
Exactly what color was the text on monochrome terminals with green-on-black and amber-on-black screens?
Awarded Nov 21 '19 at 9:45
What type of interpreter were most 8-bit BASIC implementations?
Awarded Nov 20 '19 at 21:10
What other tricks were there to get more data onto floppy disks?
Awarded Nov 17 '19 at 1:40
Why does 8 bit truecolor use only 2 bits for blue?
Awarded Nov 16 '19 at 8:35
Archimedes emulator “archie” PCFS file metadata format?
Awarded Nov 14 '19 at 10:05
What differentiated the Master System's Sega Card format from cartridges?
Awarded Nov 6 '19 at 19:00
How can I ensure my computer design is not anachronistic?
Awarded Nov 5 '19 at 17:30
Commodore monitor to VGA or HDMI
Awarded Nov 4 '19 at 7:20
Disable memory refresh on Z80
Awarded Oct 30 '19 at 16:10
The behavior of the auxiliary carry flag in subtraction on Intel 8080
Awarded Oct 30 '19 at 12:20
Estimating contents of old printed circuit boards
Awarded Oct 25 '19 at 14:10
Z80 CPU address lines not stable
Awarded Oct 24 '19 at 15:05
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