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Retrocomputing Beta

Help Center > Badges > Scholar

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Ask a question and accept an answer.
Awarded 472 times
What is the purpose of the yellow wired panels on the IBM 360 Model 20?
Awarded May 20 at 14:00
Why do the i8080 I/O instructions take a byte-sized operand to determine the port?
Awarded May 19 at 20:55
How to determine PCB revision of a Sinclair ZX-81
Awarded May 17 at 8:00
Fate of mystery Motorola RMS graphics chipset (68486 + 68487)
Awarded May 16 at 23:40
How was the blinking terminal cursor invented?
Awarded May 16 at 5:25
XT IDE causes BASIC not to load properly on IBM 5155
Awarded May 15 at 21:15
How do I allocate more memory to an app on Sheepshaver running Mac OS 9?
Awarded May 13 at 14:25
Where to find QICStream software for reading old QIC-150 tape?
Awarded May 6 at 23:50
Why do we use caret (^) as the symbol for ctrl/control?
Awarded May 1 at 23:45
Was Unix ever a single-user OS?
Awarded Apr 30 at 21:50
What was the first Intel x86 processor with “Base + Index * Scale + Displacement” addressing mode?
Awarded Apr 28 at 1:30
C64 cartridge emulation with ATmega
Awarded Apr 26 at 21:50
Is the IBM 5153 color display compatible with the Tandy 1000 16 color modes?
Awarded Apr 22 at 15:45
What is the difference between CTSS and ITS?
Awarded Apr 20 at 13:20
What order were files/directories output in dir?
Awarded Apr 20 at 1:20
What was the first language to offer “full” structured programming support?
Awarded Apr 19 at 11:25
Did Xerox really develop the first LAN? [closed]
Awarded Apr 19 at 10:40
How can I input a string in ZX Spectrum BASIC using INPUT and not show the quotation marks?
Awarded Apr 19 at 8:45
Build automation tools before make?
Awarded Apr 17 at 20:35
What can an 8086 CPU do if an x87 floating-point coprocessor is attached to it? [duplicate]
Awarded Apr 12 at 4:30
Windows 98 hangs after entering password on fresh install
Awarded Apr 10 at 13:30
Why could you hear an Amstrad CPC working?
Awarded Apr 10 at 4:15
Sinclair ZX Spectrum with DivMMC load issue
Awarded Apr 8 at 12:20
DOS, create pipe for stdin/stdout of command.com(or 4dos.com) in C or Batch?
Awarded Apr 7 at 10:40
How much RAM could one put in a typical 80386 setup?
Awarded Apr 5 at 12:30
Why don't manufacturers make handheld computers like the Jornada 720 any more? [closed]
Awarded Apr 3 at 13:20
Was there ever a home PC which ran JOVIAL?
Awarded Apr 2 at 8:00
How did people program for Consoles with multiple CPUs?
Awarded Apr 1 at 22:35
How can I implement the modulus operator in Commodore 64 Basic?
Awarded Mar 31 at 1:30
Z80 unexpected output
Awarded Mar 28 at 18:50
Where does the Z80 processor start executing from?
Awarded Mar 27 at 18:05
What does ld a,(hl) do in this piece of Z80 ASM code, and why is HL incremented?
Awarded Mar 27 at 8:37
Where can I find and download emulator of Altair 8800 with Intel 8080 processor for Windows?
Awarded Mar 23 at 4:00
How do I Interface a PS/2 Keyboard without Modern Techniques?
Awarded Mar 22 at 17:10
Create hard disk image
Awarded Mar 22 at 16:20
Would a replacement screen from a TRS-80 model 102 work for a model 100?
Awarded Mar 22 at 4:40
First language designed to be embedded?
Awarded Mar 18 at 21:30
How powerful was Knuth’s computer?
Awarded Mar 15 at 23:25
How to transfer file from one disk to another in Apple //e (Applewin)
Awarded Mar 13 at 15:05
What commercial computers were based on the MC88100 and MC88110?
Awarded Mar 7 at 23:25
Identifying an old game from the early 2000s
Awarded Mar 7 at 9:55
Does this computer have a steering wheel?
Awarded Mar 4 at 21:30
How do you open an Amiga A590 Power supply?
Awarded Mar 1 at 21:15
Different escape codes for the same keyboard keys — where did they come from?
Awarded Mar 1 at 5:00
Why can't special controllers or accessories be used with Super FX games?
Awarded Feb 26 at 1:25
Figuring out size of Device Drivers and where they are loaded in High Memory
Awarded Feb 22 at 19:10
What are Holorydmachines?
Awarded Feb 20 at 14:35
Why did the C64 have ← and ↑ as dedicated keys?
Awarded Feb 16 at 21:25
How to repair an old motherboard
Awarded Feb 14 at 10:40
Which microcomputer manufacturers developed their own Local Area Network systems? [closed]
Awarded Feb 10 at 9:40
Common practices of programming the AY-3-8910 on Amstrad CPC: via Firmware routines or directly?
Awarded Feb 9 at 19:30
What was the main purpose of bitshift instructions in CPU?
Awarded Feb 4 at 8:55
How old is Perl's “Plain Old Documentation” (POD) format and why was it called “old” initially?
Awarded Feb 1 at 15:35
Why didn't Famicom games use the Konami SCC for expansion audio?
Awarded Jan 31 at 3:20
Did a shuttle launch take most of the world's computing power?
Awarded Jan 29 at 5:50
How big is a mainframe?
Awarded Jan 25 at 9:45
Operating systems which have non-x86 instruction set architecture [closed]
Awarded Jan 23 at 15:05
Have programming languages driven hardware development?
Awarded Jan 23 at 14:45
Meaning of $ and $$ in Modcomp assembly language
Awarded Jan 22 at 21:25
When were sprites first displayed in the border area?
Awarded Jan 21 at 8:40
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