If you ever run into a junked electronic controlled washing machine the relay board should have a fair number of yes, relays. At least one large enough to run a 1/4 or maybe larger motor.
In about 1967 I serviced an office "computer" that had punched cards as its program and used core memory (tiny ferrite donuts on wires intersections).
It used DTL logic ICs.
While showing a student how to strip a motherboard using a heat gun we found a Intersil ICL7673 battery backup chip. Mentioned in the battery backup thread started by Souper Man.
Also found some logic level FETs and the inductors from the DC DC converter circuits.
In about 1967 I serviced an office "computer" that had punched cards as its program and used core memory (tiny ferrite donuts on wires intersections).
It used DTL logic ICs.
My first pc was a 486 that came with a whopping 4MB of RAM and a 540MB hard drive. It died a couple of years ago with 52MB of RAM and a 2.1GB drive.
My camera has 1GB of RAM.
I still keep my first PC, a 386 with 4MB RAM, configurable to run at either 8MHz or 25MHz with 100MB of HDD. It has a 8X CD-ROM drive, 1 720KB and 1 360K floppy drive, sound card, Adlib on ISA port. As of now it still works properly, running Windows 3.11, with a parallel port printer and even a scanner! It can still connect to the Internet with a dial-up modem!
The old Tandy's Deskmate works on it just fine. (Tandy Deskmate couldn't work on my new P4)
As of now I seldom use it, only turn it on when I feel like playing some classic DOS Games like MARIO (anyone remember?), or writing Assembly programs...
I installed Windows 95 on it a few months back (minimal installation) but it worked very slowly so I revert it back to Windows 3.1.