All Questions

1
vote
0answers
15 views

Light terminal for browsing basic websites with a slow serial connection

I want an old terminal type PC / monitor system, preferably with a mouse, for browsing cached versions of websites from a cache via a slow serial connection or old modem. The sites will have been ...
9
votes
1answer
1k views

Did Nintendo change its mind about 68000 SNES?

Compared to its main rival from Sega, the Super Nintendo has a weaker CPU but a more powerful graphics chip. According to http://web.archive.org/web/20080505070423/http://www.eidolons-inn.net/tiki-...
2
votes
1answer
131 views

(Modern?) Examples of Creative Computing/Ahl benchmark being used?

I've recently written a Wiki article on the Creative Computing benchmark. I was wondering if anyone has examples of it being used outside Creative Computing? I've found one example in Compute!, but I'...
17
votes
3answers
4k views

When did hardware antialiasing start being available?

An important step towards 3D gaming was the ability to scale sprites or tiles by nonintegral factors. Examples of the former from the eighties were the arcade games Pole Position, Outrun, Space ...
4
votes
0answers
112 views

qemu emulating MS-DOS cannot access CD-ROM

I am using qemu-system-i386 on a Windows 10 PC to emulate an MS-DOS system. I have installed MS-DOS 6.22 successfully from disk images from original Microsoft media. I am starting qemu using this ...
0
votes
0answers
117 views

SNES PPU die photo

The heart of many classic home computers and game consoles was the graphics chip, yet these tend to be less well-documented than the corresponding CPUs. Still, there are die photos of two of the most ...
1
vote
0answers
74 views

Apple IIGS: Is there a way to boot and run an Apple II OS in E0/E1 in native CPU mode?

Apple //GS: Is there a way to boot and run an Apple ][ OS in E0/E1 in native CPU mode? No GS features are required. 1MHz clock like on previous Apple2s is perfect. The reason for needing this is ...
1
vote
1answer
187 views

Test emulated 8080 CPU without an OS?

I've found a few 8080 CPU test suites available, but they all assume CP/M or a similar OS is already present and running - they call BDOS for I/O, etc. I'm working towards being able to run CP/M on my ...
10
votes
3answers
1k views

Did CP/M support custom hardware using device drivers?

MS DOS Ver 1.0 did not have OS support for device drivers. DOS ver2 added support for device drivers in the config.sys file during boot with the "DEVICE=[path][filename][parameters]". Did CP/M have ...
2
votes
1answer
115 views

How to transfer file from one disk to another in Apple //e (Applewin)

For the nostalgia, I'm going through Apple Pascal - A Hands-on Approach using AppleWin. There are four disks, pascal0 through pascal3, and for some reason pascal0 is missing a file called SYSTEM....
28
votes
6answers
6k views

Latest web browser compatible with Windows 95 / 98

Do you know which is the latest web browser compatible with Windows 95 / 98? At the moment I have an Opera 10 working fine; it is very lightweight but very outdated. I assume that software that works ...
-1
votes
0answers
88 views

Old Apple ii games? [closed]

I picked up some apple ii stuff from a neighbour who just wanted to get rid of it. I can't find any information on one of the games. The game is called Alkemstone and it is by level 10. Thanks for ...
2
votes
0answers
98 views

How to reset/recover password on Ascend/Lucent “SuperPipe 155” ISDN router

I am trying to set up a second-hand 1990s era Ascend/Lucent "SuperPipe 155" ISDN router for use with some of my 90s era computers, but I don't know the router's password and the instructions I found ...
5
votes
0answers
166 views

What is the timeline of NASA ground control computers?

In the movie "Hidden Figures", NASA receives an IBM 7090 in 1961. What is the subsequent timeline of the primary computing means for flight planning and orbit calculation? Specifically, what was the ...
0
votes
2answers
272 views

Why did Steve Jobs say that Darwin is a kernel? [closed]

In this video, Steve Jobs introduces Mac OS X (in the year 2000), this is a snapshot from the video: He says that Darwin is the kernel for Mac OS X. Now the following is a diagram of the Mac OS X ...
6
votes
1answer
259 views

What commercial computers were based on the MC88100 and MC88110?

I'm wondering how many computers were based on the MC88100 and MC88110 processors that were released commercially. As of now, i've found the MVMe boards and Luna88K(+) computers exist, but that's ...
6
votes
2answers
775 views

Does the in-code argument passing conventions used on PDP-11's have a name?

Some subroutine calls on PDP-11 machines would be coded with the arguments appearing immediately after JSR or EMT instruction, something like this (apologies for not knowing the exact MACRO syntax): ...
5
votes
3answers
386 views

Can the Commodore 64 display 26 rows of text?

I seem to remember some demo, or a game, which displayed 26 rows of text (that's one more than the usual text mode resolution of 40x25). My memory of it is very hazy, but at least is corroborated by ...
0
votes
1answer
294 views

Identifying an old game from the early 2000s

I'm hoping this question belongs here as this is the closest site I could find that matched my situation. Many years ago, around late 2003 or 2004, I came across this electronic toy that sort of ...
6
votes
1answer
2k views

Is the NES controller port identical to the port on a Wii remote?

I was recently playing on a friend's NES Classic, and noticed that the controller ports look similar to the ones on a Wii remote (where you can plug in the Numchuck or Class Controller). Keep in mind ...
15
votes
3answers
3k views

Why did the Cray-1 have 8 parity bits per word?

According to https://en.wikipedia.org/wiki/Cray-1 The Cray-1 was built as a 64-bit system, a departure from the 7600/6600, which were 60-bit machines (a change was also planned for the 8600). ...
3
votes
0answers
218 views

Who developed the Super FX co-processor?

The Super FX co-processor was, according to Wikipedia and every other source I can find, a custom designed RISC chip made by Argonaut Games. Argonaut was a small British company and back in the late ...
4
votes
0answers
199 views

How many transistors in the Nintendo Super FX chip?

The Super FX coprocessor, released with Star Fox in 1993, provided 3D rendering capabilities that were absent from the SNES itself. Given that 3D gaming was quite widespread by the late eighties, it ...
1
vote
0answers
157 views

How much time does a Mac SE/30 with 128 MB of memory take for its power-on memory test?

I've read that it should be possible to push the SE/30 to its maximum RAM capacity with eight pieces of 16 MByte, 30-Pin SIMMs. I've never seen such a machine in the wild. Neither with 64 or 80 MB. ...
1
vote
1answer
221 views

'Swap file' on early time sharing machines

In the Wikipedia article for time sharing, it says The "state" of each user and their programs would have to be kept in the machine, and then switched between quickly. This would take up computer ...
6
votes
1answer
394 views

Does this computer have a steering wheel?

I don't really know what the round object is, but it certainly resembles an old-time steering wheel. This image was used as an example at this page. I don't know what its original source was, it is ...
18
votes
1answer
3k views

Did 5.25" floppies undergo a change in magnetic coating?

3.5" floppy disks, in the transition from 720K to 1.44M, changed the actual coating to a different compound that was magnetically 'stiffer'. This was necessary to support the higher density, but meant ...
6
votes
4answers
462 views

What is the origin of Mac OS X?

I think that Mac OS X is based on the Darwin OS, and the Darwin OS is based on the NeXTSTEP OS. Am I correct?
16
votes
4answers
3k views

Wanted: 5.25 floppy to usb adapter

I have found inexpensive (~$15) 3.5in floppy to USB adapter cables but have been unable to find a similar adapter for 5.25 floppy drives. Does anybody make such a thing? Are the pinouts of a 3.5 the ...
5
votes
3answers
338 views

Why are RAM chips 1 or 4 bits wide?

I don't know whether it's still the case, but at least in the early days, it was common for RAM chips to be one bit wide, so e.g. an 8-bit computer would install them in groups of eight. I gather at ...
8
votes
4answers
649 views

Does fast page mode apply to ROM?

Starting with the 4116, RAM chips from the late seventies supported fast page mode, where if you were reading nearby – particularly, successive – words, you didn't need to supply both row and column ...
6
votes
1answer
170 views

How do you open an Amiga A590 Power supply?

I have an Amiga 590 hard drive, but the power supply appears to be dead on it so I want to take a look inside. I have removed three screws from the underside but it still won't open, acting like there'...
3
votes
0answers
207 views

Windows 98 SE Splash Screen loads forever [duplicate]

I was currently trying to install Windows 98 on my computer. The specifications will be listed: Intel Pentium 4 2.4 GHz, 1.5 GB RAM (Modified system.ini so it sees less) 186 GB IDE Hard drive (...
9
votes
1answer
659 views

Looking for a specific 6502 Assembler

I found some 6502 assembler code for a Commodore 64 program that uses meta commands like #include "foobar", define the address to be assembled to via *=$1234 and define labels without a colon. ...
13
votes
2answers
1k views

Which communication protocol is used in AdLib sound card?

By "AdLib sound card" I mean AdLib Music Synthesizer Card released in 1987. Wikipedia says that AdLib uses frequency modulation synthesis to produce sound, but does it use MIDI communication protocol ...
8
votes
4answers
699 views

How much data could a home computer store on an audio cassette?

The use of audio cassettes for storing data for home computers was a great example of repurposing an existing invention. Cassettes were sold in a variety of capacities, and labelled with their audio ...
4
votes
1answer
135 views

Create hard disk image

I'm looking for Linux dd command equivalent for Amiga to make image of hard disk. TSGUI not work if disk have broken RDB. Do you know program which can make hard disk image on Amiga?
9
votes
1answer
249 views

Why can't special controllers or accessories be used with Super FX games?

SNES games with the Super FX processor generally do not support special controllers or accessories such as the Multi Player 5 multitap, SNES Mouse, or Super Scope. Yoshi's Island, for example, ...
5
votes
3answers
292 views

Different escape codes for the same keyboard keys — where did they come from?

While debugging uart on some microcontroller board, I've made a simple firmware that simply responds on every byte received dumping that byte in HEX like "0x**". Then, using different terminal ...
0
votes
3answers
185 views

PDP-11 JMP and JSR - how was the target specified?

As I understand it, the PDP-11 has a 16-bit address space with a fully loaded system having 28k words (56k bytes) after reserving some of the address space for I/O, which means if instructions must be ...
12
votes
1answer
671 views

Was the Spartan by Mimic Systems a real product?

I was flipping through an old copy of RUN magazine and came across an advertisement for a product called "The Spartan" produced by Mimic Systems. I had forgotten about this product completely, but I ...
6
votes
1answer
320 views

Viruses for CP/M?

Are there any (known) viruses for CP/M? Chronologically, CP/M machines fit into the time period of the first home computer viruses, starting with other 8-bit computers. Given the hardware ...
3
votes
2answers
263 views

Figuring out size of Device Drivers and where they are loaded in High Memory

I'm setting up a 486 PC (aiming for around 1994 or so) and I have the following device drivers set up in DOS 6.22: HIMEM.SYS EMM386.EXE ANSI.SYS SBIDE.SYS CTMOUSE.EXE SMARTDRV.EXE DOSKEY.COM MSCDEX....
3
votes
2answers
347 views

Total number of 6502s or 8051s ever manufactured or sold?

What's a good way to estimate the total number of 6502 or 8051 chips (or workalikes, pin-compatible or not, but not including software or FPGA emulators) ever manufactured or sold? Added: (To ...
-1
votes
0answers
103 views

Material Specifications for custom CNC faceplate, style of Altair 8800

I'm working on a custom project, a computer/clock with LEDs and switches with the style of the original Altair 8800. I believe the original was aluminum, with silk screening, and with switches mounted ...
13
votes
1answer
2k views

What are Holorydmachines?

While going through the memoirs of a witness of the Holocaust in Germany, I stumbled upon the passage: there in Rudolfstadt we had a new holorydmachine from the Americans - in the barn of a farmer -...
12
votes
2answers
2k views

Why did some CPUs use two Read/Write lines, and others just one?

Many 8-bit processors, such as Motorola's 6800 and MOS Technology's 6502 make use of a single pin to indicate to the rest of the system whether the CPU wishes to read from or write to a memory ...
8
votes
0answers
333 views

What is the origin of this version of the “Moon Landing” game?

Among the BESM-6 games there was a "Moon Landing" game; the only one available in both English and Russian versions. The binary survived but it is not runnable (yet). The description said that its ...
2
votes
0answers
76 views

Microsoft Mail for AppleTalk

I want to tinker a bit with Microsoft Mail for AppleTalk, Version 3.1. I installed the System Extensions, they get loaded and the server itself shows up in the chooser with it's serial number. To ...
4
votes
1answer
363 views

Why did the Apple III not support the color red?

I was playing around with an emulated Apple /// and while looking at the color demo I noticed that unlike the Apple ][, the /// did not implement red as one of its supported colors. Ignoring strange ...

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