Either the device itself(such as a smart phone) is a computer. Or maybe you are looking for the term "logic board".
Bluetooth devices can be found in everything from cell phones to computers. They can be purchased by looking at the Product Directory, located on the Bluetooth website.
Microwaves that are on sale can be found at most major electrical dealers such as Curry's and Comet. On the internet microwaves can be found at Amazon or eBay usually at sale prices.
Some devices that are not commonly found on computers anymore are ISA Devices such as riser cards, and older video AGP cards. Other older devices that are not common today are PATA/IDE storage devices, such as the CD-Drive and Hard drive.
Mercury :)
Embedded computers are typically computers that you don't generally see. They are found in appliances, in cars, inside implanted medical devices, and so on. There might also be such things called nanocomputers where they are nearly impossible to see with a naked eye.
Mercury :)
Magnets are found in the speakers of TVs, Hi Fi systems and computers. Magnets are also often used as closure devices on bathroom cupboards & fridges.
Yes, his detailed drawings and descriptions of the analytical engine include components similar to those found in todays computers
The liquid in a clinical thermometer is often mercury. But there are thermometers that use a coloured alcohol.
Microwaves
Microwaves would be found below infrared radiation, which is below visible light. They'd be at the top of what is called the radio spectrum.
Mercury can be found in the labarotry or in the clinical thermometer.