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133 Answers

Votes Activity Newest
101
Why did IBM make the PC BIOS source code public?
Aug 13 '19 at 14:06
45
How slow was the 6502 BASIC compared to Assembly
Sep 29 '19 at 3:25
44
What's the relationship betweeen MS-DOS and XENIX?
Aug 15 '19 at 0:10
36
Why did post-8008 CPUs not keep the on-chip stack idea?
Jun 5 '20 at 4:40
29
Late 1970s and 6502 chip facilities for operating systems
Sep 19 '19 at 3:31
27
Was there a clearly identifiable “first computer” to use or demonstrate the use of virtual memory?
Nov 7 '19 at 5:15
26
When low-level formatting a floppy, how does one ensure any existing sector markers are overwritten?
Mar 1 '20 at 16:58
25
What's the timeline of Motorola 6800-family CPUs from 1974 to 1979?
Jul 31 '19 at 20:18
24
For how long can you safely stop the clock on an NMOS 6502?
Apr 12 '20 at 10:45
24
What causes the traces to wrinkle like this and should I be worried
Sep 19 '19 at 21:40
21
What do the '80/40' and 'keyboard' buttons on my Apple IIc do?
Feb 29 '20 at 4:17
21
NES chips usage
Jan 23 '20 at 4:31
21
What was the first LISP compiler?
Sep 9 '19 at 3:44
21
Intel 8080-based home computers
Jul 16 '19 at 9:20
20
What is DRAM refresh and why is the weird Apple II video memory layout affected by it?
Mar 3 '20 at 15:01
20
Why did the Apple IIe use a 2 MHz-rated 6502, even though it ran at only 1 MHz?
Mar 17 '20 at 3:32
19
What was the rationale behind 36 bit computer architectures?
Jul 24 '19 at 3:24
18
cprintf printing invisible characters in C program on VIC 20
Oct 4 '19 at 7:24
18
On a Gameboy, what happens when attempting to read/write external RAM while RAM is disabled?
Jul 22 '19 at 6:47
16
How was a line of Commodore 64 BASIC code stored in its memory?
Mar 8 '20 at 2:09
16
Were internet costs ever billed per packet?
Mar 7 '20 at 6:50
16
How were the 70's and 80's coin-op programmed?
Feb 28 '20 at 17:53
15
Did this analogue computer from 1960 really have Internet?
Mar 7 '20 at 6:22
15
Where did the free parameters of IEEE 754 come from?
Jan 27 '20 at 8:41
15
What is the hex versus octal timeline?
Aug 21 '19 at 9:18
14
Zilog Z80 freezes while binary counting up to 65 536 (2^16)
Feb 4 '20 at 1:18
14
Why are branches relative in many 8-bit CPUs?
Nov 24 '19 at 3:57
12
Could we have avoided the whole UTF-16 fiasco?
Mar 19 '20 at 0:57
12
What happened to the S1 operating system?
Mar 1 '20 at 5:42
11
Can I use the DEC VT220 composite output to connect it to a TV?
Oct 9 '19 at 0:53
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