Questions tagged [input-devices]

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5
votes
2answers
139 views

What combinations of modifier keys can you detect on an Apple II?

Apple II computers other than the IIgs (which uses ADB) have a hardwired keyboard combined with the paddle/joystick ports for input. What combinations of modifier keys can you detect? I know that the ...
22
votes
3answers
2k views

How do I Interface a PS/2 Keyboard without Modern Techniques?

I'm attempting to build a Z80 homebrew computer to teach myself the basis of electronic design. I planned to start from something simple, like a ROM, some SRAM, a video chip and a Z80-PIO. I'd like to ...
49
votes
11answers
14k views

Why did trackballs disappear?

For a desktop computer, a mouse is a great pointing device. For a laptop if you don't want an extra device to keep track of, you need an alternative. The options I'm aware of: NubLow-tech, cheap, ...
2
votes
7answers
469 views

Name for rotary dial controllers?

Many years ago I was watching the news when I saw someone on a Sun workstation controlling the display using an external input device consisting of a series of rotary dials. Turning them rotated and ...