Wikipedia:Reference desk/Archives/Computing/2014 October 1

= October 1 =

Disabling save prompt in a Snow Leopard application.
It's sort of nice to have the computer remind me I haven't saved something before closing, but when I'm dealing with a bunch of files I don't want to save, it's a nuisance. Any way to disable this? I'm thinking Preview in particular. InedibleHulk (talk) 02:24, 1 October 2014 (UTC)

I'll take that as a maybe. InedibleHulk (talk) 05:16, 6 October 2014 (UTC)

5 V Desktop Power Supply
I'm wanting to buy a stand-alone 5 V power supply to attach to my breadboard, and I'm not sure which one to get. Ideally, this would be a little box that I plug into the wall and into my breadboard. A quick search at Jameco lists dozens of supplies with different descriptions (and widely varying prices). I want to use this to power simple computer circuits built around processors like the Z80 or 6502, and I'm not sure if I need one of the more expensive supplies to make sure the voltage is correctly regulated. I also don't know if one of the inexpensive supplies is likely to be well-built enough to work correctly. Any suggestions are appreciated. OldTimeNESter (talk) 15:04, 1 October 2014 (UTC)


 * I use one of these: Power_supply_unit_(computer) You can probably find one for free in a dumpster. 196.214.78.114 (talk) 06:52, 2 October 2014 (UTC)


 * For powering a processor, you aren't going to be concerned about much. The big computer power supplies are used to maintain constant 3.3V and 5V with sudden jumps in load from power sucking monsters like video cards and hard drives. If you won't have that type of hardware causing a jumpy load, you can expect your 5V supply to maintain a rather constant 5V. 209.149.115.99 (talk) 17:58, 2 October 2014 (UTC)
 * If you are looking at breadboards and processors, [this is the first tutorial] you should do. Vespine (talk) 00:07, 3 October 2014 (UTC)