There are many, but an example of some are:
Desktop
Laptop
Mainframe
Supercomputer
Pecker
In PCs the most common are AWARD, AMI and Phoenix. Some PC manufacturers use their own BIOS.
lithium ion
Yes.
PC and mac
There are many small computers that will provide you with all of the programs you need as well as ease of transportation. Some great small computers are Mini PCs, Book PCs, Cable PCs, LCD PCs, Home Theater PCs and Rackmount Systems.
Yes, but check to make sure it'll work. Some phones will & some won't.
If you want some information on purchasing desktop PCs, I would go straight to a major supplier. Dell is one of the most popular suppliers of desktop PCs in America at the moment.
For what? The fact is that both types of machine is good, and the differences shrink at an almost daily rate.
The Pcs or the tablet Pcs?
There are several different types of tablet computers out there, and the first thing is knowing the difference between them. Tech-FAQ.com has a great article which goes into the types of tablet PCs and how they work. http://www.tech-faq.com/how-do-tablet-pcs-work.html.
OS/2