Unanswered Questions
10
votes
0answers
68 views
How can I use a modern keyboard with the Panasonic JB 3000?
I still own my very first computer - a Panasonic JB 3000. The keyboard it came with now has many faulty keys. It has reached the stage where I can no longer use the computer, because I can't type. ...
9
votes
0answers
168 views
Logo of a bow tie guy with a spoon
I was in the Computer History Museum in Silicon Valley last week, and I saw this badge. I know I've seen that logo somewhere before, but I can't remember where! Does anyone know where it's from?
9
votes
0answers
156 views
Is there a simple BASIC program that demonstrates SID6581 distortion?
Many songs use a SID6581 design "flaw", distortion, as an effect. I tried experimenting with the filter and resonance registers, but was unable to reproduce the sound. What conditions are necessary ...
9
votes
0answers
44 views
Is my Atari Falcon's filesystem messed up?
I use the Cecile driver for the Kingspec DOM (basically an IDE flash drive0 in my Atari Falcon. I've noticed on occasion that in file dialog boxes (save, open etc.) I sometimes see weird files, called ...
8
votes
0answers
64 views
Official explanation for offering both BOOPSI and GadTools?
Was there ever an official explanation on why AmigaOS 2.0 offered two similar GUI gadget toolkits, in the form of BOOPSI and GadTools?
Or, to put it in another way, why were not GadTools gadgets ...
8
votes
0answers
79 views
Memory sharing mechanism in the Amstrad CPC computer
In the Amstrad CPC464 (and I guess it's the same for CPC664 and 6128), the CRTC and the gate array work together to build the display image: every microsecond, the CRTC puts a memory address and a ...
8
votes
0answers
77 views
What's the difference between Williams Earthshaker pinball ROMs L-3 and F-1?
I acquired a Williams "Earthshaker!" pinball machine several years ago. It came with the version L-1 ROM installed. I noticed that sometimes balls would get stuck in the shelter kick-back-up mechanism ...
7
votes
0answers
73 views
Modern vector display driver?
I have an old Tektronix Type 611 Storage Display sitting in storage, which I would some day like to get working again. I have the full repair manual on microfiche from Tek.
It is essentially an ...
6
votes
0answers
138 views
In search of… SeaWar — NOT Battleship!
Hopefully, sufficient background
Many years ago (40-45), I used to play "Sea War" on a good sized time-share system. It was a text/adventure war game between a couple remote players, played over a ...
6
votes
0answers
139 views
What are the technical differences between the Midway 8080 and Taito 8080 hardware boards?
In my research on 1970s-era arcade machines, I've noticed that both Midway and Taito created games which used Intel's 8080 microprocessor. However, each company had their own host boards which ...
6
votes
0answers
119 views
How did the Lazer Systems Graphics Plus board work?
The first two Apple II models (the ][ and ][+) were unable to display lower case on the text screen. Some 3rd parties made lower-case adapters that replaced the character ROM (e.g. Dan Paymar's ...
5
votes
0answers
85 views
What is the model of the Emachines Etower 366i2's Monitor?
I've an old 1999 Emachines Etower I want to restore. I have all the original parts except for the monitor. It just isn't a complete set without it. Does anybody know the specific model of that monitor....
5
votes
0answers
204 views
How can I build Gameboy Development Kit 2.1.5 on a modern Unix/Mac platform?
Continuing with my quest to build the Infinity Game Boy Color source code, I am trying to build the Unix source of GBDK 2.1.5 on my macOS El Capitan machine.
Trying to make the files in the lib ...
5
votes
0answers
42 views
PLATO & JS99'er
Has anyone out there managed to load a PLATO PHM 3122 cartridge by Control Data into the JS99'er emulator?
That way a user could place all of the PLATO Lesson Disks on a cloud location (e.g., ...
5
votes
0answers
37 views
Information about Sabre-ADS Model 757 terminal
Someone on reddit acquired a Sabre-ADS terminal, Model 757. They were used for airline reservation and probably connected to an IBM mainframe.
Is there anything known about the pinout and workings of ...
