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Top Questions

1 vote
2 answers
22 views

HP 2000F TSB ported to MSP430FR5994

5 votes
2 answers
421 views

Why did old consoles have special RAM dedicated for a specific task?

18 votes
6 answers
2k views

Why didn’t the 1980s micros use MC68010?

7 votes
0 answers
78 views

How did the MC6800 get its name?

32 votes
6 answers
5k views

In the ISO 1990 C standard library, what was the rationale for having memcpy return one of its inputs?

13 votes
1 answer
1k views

What happens when the segment plus offset overflows 20 bits?

7 votes
3 answers
411 views

Sending an executable to an old Macintosh SE using serial port

15 votes
3 answers
2k views

What is the history and development of memory caching?

16 votes
1 answer
3k views

In P.J. Plauger's "The Standard C Library" (1992), why are for loops used so frequently instead of while loops in the implementations?

12 votes
8 answers
6k views

Is there some reason why "grounding your fingers" is not necessary for old video game consoles?

11 votes
4 answers
2k views

Did any hardware-supported floating-point format ever fast-track integers?

2 votes
3 answers
394 views

What is the most recent programming language that didn't support comments? [closed]

3 votes
1 answer
182 views

What was the first motherboard with UEFI?

2 votes
1 answer
112 views

What is the advantage of using CB2 over CA2 on the PET user port?

3 votes
1 answer
107 views

Does the 6522 VIA swap the registers for ports A and B compared to the 6820 PIA and 6526 CIA?

3 votes
2 answers
357 views

Is there an established name for this group of CPUs?

7 votes
4 answers
808 views

Is the W65C02S TTL-compatible?

9 votes
3 answers
2k views

String manipulation in MS-DOS 6.22 batch files

23 votes
1 answer
2k views

Why was PETSCII based on an obsolete version of ASCII?

36 votes
3 answers
8k views

What was the first operating system to be called an "operating system"?

9 votes
3 answers
2k views

Is there an equivalent of "#pragma once" in RGBASM (Gameboy DMG assembly language)?

8 votes
1 answer
718 views

How big is the screen of the Amstrad CPC 464?

13 votes
1 answer
315 views

PDP-11/34 bit 8 in MMR0: maintenance mode - what does it do?

12 votes
1 answer
297 views

What are these compression types in the ARC file format?

6 votes
1 answer
527 views

Why did the 8085 multiplex data with the low address byte?

18 votes
3 answers
4k views

What is happening in this algorithm scaling an 8-bit 0-99 value to full-range 16-bit?

20 votes
5 answers
4k views

Where is DOS stored in memory when a program starts?

30 votes
3 answers
3k views

What motivated the weird boolean instruction repertoire of the PDP-11?

7 votes
2 answers
2k views

Why does my PlayStation RGB video cable cause the picture to be all orange-y unless pressure is applied?

9 votes
2 answers
796 views

Is there an obstruction to emulating Gameboy link cable over Wi-Fi?

13 votes
2 answers
774 views

What was the first game console to ship with an official C development SDK?

17 votes
1 answer
3k views

Why was the 6502 version of Microsoft BASIC coded like the 8080 and 6800 versions even though this was rather inefficient?

6 votes
1 answer
306 views

Managing and deleting users in Windows 95 prior to Internet Explorer 4

17 votes
7 answers
5k views

Why does the x86 not have an instruction to obtain its instruction pointer?

9 votes
2 answers
393 views

How were you supposed to recover a forgotten Microsoft "Protect It!" key, or uninstall it altogether?

23 votes
2 answers
4k views

What is a "sympathetic bit"?

22 votes
3 answers
3k views

How does the BIOS distinguish Interrupt(08h-12h) from INT instructions, vs. actual exceptions inside the CPU?

4 votes
1 answer
211 views

Are the ACTUAL DISKETTES different for 360KB Single, or Double sided? 1.2M? [duplicate]

2 votes
4 answers
448 views

How can I make an 80 GB hard drive work with an Asus P2L97 motherboard?

57 votes
9 answers
13k views

What is the oldest digital processor still performing non-educational duties in its original environment?

1 vote
1 answer
337 views

Why audio of Prince of Persia (1989) produce in CPU rather than audio speaker? [closed]

16 votes
1 answer
1k views

Can you use 5.25 HD floppy disks in a DD drive?

10 votes
1 answer
364 views

What's the story behind IBM's SKU numbers?

9 votes
1 answer
241 views

Weird example code for CALL/360:BASIC

3 votes
1 answer
173 views

PDP-11 ASH instruction: who is right?

9 votes
1 answer
801 views

How can I connect a Psion Series 5 PDA to a 64-bit Windows PC?

3 votes
0 answers
141 views

Why did the byte before TXTTAB have to be zero in MS-BASIC?

4 votes
1 answer
279 views

Where can I find good photos of old chip making equipment?


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