Retrocomputing

Enlightened

 Enlightened
First to answer and accepted with score of 10 or more. This badge can be awarded multiple times.

earned this badge 241 times.
Commodore monitor to VGA or HDMI
Awarded 21 hours ago
Why did Windows 3.0 fail in Japan?
Awarded Mar 5 at 16:47
Identify these old accounting machines
Awarded Feb 26 at 17:03
Intel "Kernel processor" or "OS Kernel"
Awarded Feb 26 at 9:28
Ada and its candidate languages
Awarded Feb 22 at 18:41
What type(s) of compressed files was the MS-DOS EXPAND command able to decompress?
Awarded Jan 29 at 13:40
In what sense would the Atari 3200 have been a 10-bit machine?
Awarded Jan 24 at 6:17
Who invented garbage collection?
Awarded Jan 20 at 14:21
Was sneakernet a job description?
Awarded Jan 14 at 13:04
Why are some soft switches on the Apple II only triggered with a write?
Awarded Jan 13 at 13:42
Which version of BASIC uses RANDOM for seeding the random number generator (RNG)?
Awarded Jan 12 at 12:47
What are the most historically relevant implementations of Prolog? And what platforms?
Awarded Jan 11 at 20:02
IBM PC memory map - why RAM at the bottom?
Awarded Jan 10 at 2:57
Where do command line switches originate from?
Awarded Dec 12, 2022 at 18:57
Does the 8080 always handle unaligned access correctly?
Awarded Dec 2, 2022 at 18:55
Which BASICs used a backslash, \, as a statement separator?
Awarded Nov 11, 2022 at 10:50
Why was there a need for separate I/O address space in addition to a memory address space already?
Awarded Oct 31, 2022 at 7:17
Was the IBM S/360 Responsible for Popularizating the 'A'-to-'F' Notation in Hexadecimal Numbers?
Awarded Oct 27, 2022 at 20:20
Why does MOS 6502 require an external clock if it has an internal oscillator?
Awarded Oct 21, 2022 at 15:42
Anyone up for decompiling some 8080 code for Kaleidoscope?
Awarded Oct 2, 2022 at 16:35
What are the three or four holes on the back of a 3.5inch floppy disk indicating and used for?
Awarded Sep 29, 2022 at 20:34
Can 6502 programs be transliterated to the SPC700?
Awarded Sep 10, 2022 at 19:30
TMP/TEMP Environment variables in Microsoft operating systems
Awarded Sep 6, 2022 at 20:55
Asking explanation of 65C02 assembler code
Awarded Aug 18, 2022 at 19:06
IBM PC Alt + numpad for entering character codes: firmware, BIOS or OS?
Awarded Aug 16, 2022 at 21:08
In 16-bit MS-DOS, how do I get a file handle to the currently running .exe?
Awarded Aug 9, 2022 at 15:01
Resources about 1980s GPCPU video controller designs
Awarded Aug 2, 2022 at 22:20
Slash versus backslash as directory separator – what/who caused this rift?
Awarded Aug 2, 2022 at 8:32
Why does CP/M use CALL 0005h for its syscalls?
Awarded Jul 29, 2022 at 11:06
What date is 74029 on an IBM Mainframe?
Awarded Jul 22, 2022 at 9:01
Was 36-bits needed for LISP?
Awarded Jul 20, 2022 at 2:34
Carry handling during address generation on a 6502
Awarded Jul 18, 2022 at 20:21
Why did Nintendo name its console the "Famicom"?
Awarded Jul 6, 2022 at 12:37
Why does NumLock exist?
Awarded Jul 3, 2022 at 7:49
In P.J. Plauger's "The Standard C Library" (1992), why are for loops used so frequently instead of while loops in the implementations?
Awarded Jun 22, 2022 at 22:56
How fast was Rambus compared to regular EDO RAM?
Awarded Jun 21, 2022 at 13:00
Why does the x86 not have an instruction to obtain its instruction pointer?
Awarded May 21, 2022 at 3:32
Why didn't the original Commodore PET computer use a standard typewriter style keyboard?
Awarded May 11, 2022 at 19:04
What did Shin Nihon Kikaku (SNK) originally manufacture in 1973?
Awarded May 2, 2022 at 23:15
When and why was the question mark chosen to abbreviate PRINT?
Awarded May 2, 2022 at 20:49
Patent barriers to IBM mainframe compatibility?
Awarded Apr 28, 2022 at 9:17
When/why did computers come to have push-button main power switches where on and off is the same push action?
Awarded Apr 23, 2022 at 12:41
What is a Hollerith file on a GE/Honeywell computer?
Awarded Apr 16, 2022 at 9:16
Why was the DOS clock device renamed from CLOCK into CLOCK$?
Awarded Apr 11, 2022 at 23:09
Did early versions of DR-DOS preserve more registers than MS-DOS?
Awarded Apr 11, 2022 at 16:01
Why did the Apple III not support the color red?
Awarded Apr 1, 2022 at 22:18
Disk copy protection schemes for Apple II
Awarded Mar 30, 2022 at 13:55
What is the purpose of the 2x4-bit split of the PCH incrementer?
Awarded Mar 29, 2022 at 15:10
Weird power lines for S-100, why no 5V?
Awarded Mar 23, 2022 at 16:30
Why was ones-complement integers implemented?
Awarded Mar 5, 2022 at 17:40
Why did the ZX81 16K RAM pack use two PCBs?
Awarded Mar 5, 2022 at 15:21
Where and when did the `0x` convention for hexadecimal literals originate?
Awarded Feb 25, 2022 at 3:47
Compatibility of printers with HP54645D oscilloscope?
Awarded Feb 13, 2022 at 17:36
What did memory dumps look like on 36-bit machines like PDP-10s?
Awarded Jan 14, 2022 at 10:55
What was the first PC/computer to have sound recording & playback support?
Awarded Jan 13, 2022 at 19:11
How did early Minix represent processes
Awarded Jan 9, 2022 at 0:56
What are the "virtual machines" that were running on 80386 and later x86 CPUs before full hardware virtualization?
Awarded Jan 5, 2022 at 8:52
What kind of RAM stick is this?
Awarded Jan 3, 2022 at 17:26
What is a good COBOL specification to target when aiming to support ~75% or more of mainframe and minicomputer software bases?
Awarded Dec 26, 2021 at 11:42
How do I connect a command prompt to a serial line in MS-DOS 6.22?
Awarded Dec 23, 2021 at 8:42
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