/sci/ - Soyence and Technology

even doe you can solder your own transistors together or buy pre-made ICs and wire them up to make a computer

I guess but not a cpu if. Maybe you have a mastery on logic gates and the proper tools to make that. Probably not you could easily make a fan with a little DC motor doe that's cool I guess

>>12671
yknow cuba gnuschizo told me in DMs that she was interested in dating you

>>12671
I have made multiple custom CPU architecture and implemented them in hardware. It's not that difficult. Also have written operating systems.

btw I use Windows and GNUSchizo is a luser.

>>12676
I mean sure go ahead but my autism is telling me to make fucking sure you don't have any piece in that system that will melt because there is no resistors and you fuck up everything. On the "software" side I mean yeah that is great go ahead. Idk maybe I'm just paranoid

>>12671
CPU design at home is actually possible, something like a GPU on the other hand is insanely expensive, time consuming, and challenging

>>12683
depends what you mean by GPU. It's pretty easy to bitbang VGA

>>12684
a custom cpu bitbanging vga is really hard if you’re planning on using a resolution higher than 120p.
the gigatron ttl could bitbang vga but the bitbanging routines waste 70% of the cpu cycles just driving vga.
a simple video card isn’t that complex, but I’m looking into using a tft driver (FT81x) to drive a vga signal.
all you need is a reliable spi interface (you can bitbang it, I’m not sure if you could do it fast enough) and some cheap level shifters (not sure if they cause delays or noise in the connection) and a resistor ladder for the driver’s output.
it can drive all sorts of resolutions thanks to a presettable hsync/ vsync delay.

>>12691
The ZX80 and ZX81 did it. And its trivial to implement a VHDL sync generator.

>>12697
the zx80 couldn’t run BASIC programs and drive video at the same time. also crt timings are slower than vga timings