A few questions

1) Perhaps it would help if we know what you want to do with it.

2) What kind of Mac? If this is about the 2.4 MacBook, it's DDR3, 1066MHz.

3) 8x is the maximum speed expressed in multiples of the speed of a standard video DVD player.

4) I believe the camera is 1280x960 (about 1.3 MP) on all new Macs.

5) I'll let you google those or ask someone else.

6) Same as 5.

7) It's a wired network connection.

8) It's how fast the hard drive spins -- it's essentially a measure of the hard drive's speed, although RPM is not the only thing that determines speed.

 

1. Search.
2. Depends on the computer. You can't get DDR3 unless it's a new MacBook or MacBook Pro, and then you have to.
3. 8x DVD write speed
4. 1.3
5. Ignore overclocking. We don't really do that.
6. Depends.
7. en.wikipedia.org/wiki/Ethernet
8. Faster the RPM, faster the HDD.

 

RAM: http://eshop.macsales.com/shop/memory/Apple_MacBook_MacBook_Pro/Upgrade/DDR3

 

Yes. And look on dealram.com

Yes, although this is a theoretical maximum. So, as I understand it, 8x means that a single layer DVD should burn in as little as about 15 minutes, but the computer will meter speed to try to get a safe burn, and you probably will not frequently get burns that fast. This is all pro forma -- it's pretty much the same as a drive in someone else's computer. Burn speeds vary with ... the structural rigidity of the drive assembly and the dynamic stability (flatness and centricity) of the disc.

Depends almost completely on whether you want wireless backup using Time Machine. If you do, get it. If you don't, don't get it. You could also get a basic router and an external backup drive that you can use with a USB cable, and then buy a TC later if you want.