Questions tagged [ports]

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2
votes
1answer
48 views

Did Tomb Raider on Saturn have fewer save crystals than the PlayStation port?

I've been trying to find this out for ages. Having owned the Saturn version (which was the original release, BTW) when it was new, but also playing the PlayStation version at a cousin's house, I could'...
8
votes
1answer
427 views

Could the BBC micro's analogue input be used to sample sound?

Reference: BBC Micro analogue in A custom connector would be required between this D-shape rows of pins port and a standard input socket for phono/rca or 3.5inch or 1/4inch jack. What would be the bit ...
8
votes
1answer
762 views

What was the 1 MHz bus used for on the BBC micro series?

What was the 1 MHz bus used for on the BBC micro series and how did it compare with the TUBE in terms of speed/bandwidth? I read somewhere that EPROM programmers used the 1 MHz bus, but anything else?
-1
votes
1answer
262 views

How were console games ported to DOS?

Many popular DOS games were ported from video game consoles: Earthworm Jim Mega Man The Lion King The Lost Vikings Turrican 2 Rayman Oscar Zool Video game consoles generally have wildly different ...
-2
votes
2answers
330 views

What is this port? [closed]

So, first off, to begin with this isn't "exactly" retrocomputing; the technology in question is about 5-10 years old. That being said, I couldn't find answers anywhere else, so my best bet ...
17
votes
8answers
4k views

Were there any parallel port keyboards?

I was reading this QA ( Why is the clock frequency of the PS/2 keyboard protocol so high? ) and read in the replies that a high frequency was chosen (at least in-part) to reduce the latency between a ...
25
votes
2answers
5k views

Why did SCSI require so many pins?

SCSI, I think, is a serial interface. A standard serial port on PCs used a 9-pin DSub connector where a parallel port used a 25-pin connector. Then why did SCSI require so many pins? I vaguely ...
6
votes
8answers
316 views

What 8-bit microcomputer systems multiplexed multiple physical ports on a single controller?

The NEC PC-8201 had three serial interface ports on the back, "RS-232," "SIO1" and "SIO2." These were all driven by a single IM6402 USART, switched between each physical port via bits 7 and 6 of IO ...
5
votes
2answers
2k views

How did the BBC sideways ROM software for the AMX mouse process the user port input data to determine x and y movement?

This mouse plugged into the user port on the underside of the BBC micro models. The mouse came with software in the form of a sideways ROM which provided APIs, CLI commands for own programs as well as ...
3
votes
1answer
181 views

Did the IBM Game Control Adapter have I/O port aliases?

I was taking a look at the logic diagram in the manual for the original IBM game port adapter card: In the upper-left corner of the schematic, there is the circuitry responsible for decoding the I/O ...
14
votes
3answers
2k views

What are the electrical characteristics of a PC gameport?

I'm considering building some custom gizmos to connect to the gameport on my retro-hobby PC (SNES controller adapter, macro/turbo box, etc.) but I haven't been able to find much information on details ...
43
votes
4answers
5k views

Why are C64 games inconsistent with which joystick port they use?

The Commodore 64 has two DE-9 joystick ports. If I'm the only person that ever plays games on it, you would assume that you could just leave a joystick plugged into Port 1 and be done with it. However,...
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 ...