It would depend on the motherboard, chipset and CPU attachment type. In most cases, it should work, but in some rare cases it wont.
No. There is no possible upgrade for a computer with a 120 MHz Pentium to an 800 MHz processor. You couldn't even replace the motherboard, as the case would not support newer motherboards (AT/Baby AT vs. ATX/microATX)
Yes.
1600 Mhz, 1333Mhz, 1066Mhz, and 800Mhz
It's limited by your motherboard on what CPU it can take. The list of supported processors is most likely listed in the manual.
The term "Mhz" stands for Megahertz, where hertz is the number of cycles per second, and Mega equals 1 000 000 (one million). Therefore, 800Mhz is 800x1000 cycles per second. The term Mhz is commonly applied in computers. For example, a 800Mhz Processor has 800 000 cycles/second and this is its computing speed.. In comparison, a common 2.3Ghz processor is much faster because it has 2 300 000 cycles/second.
The system requirements for Vista Home Basic are as follows: 800MHz 32-bit or 64-bit processor, 512 MB system memory, DirectX 9 graphics card, 32 MB graphics memory and at least 15 Gig free on your hard drive.
800mhz p3 256m pc-100 x3 slots 768m total
Yes
yes
800mhz
You need a good graphic card to play the latest games.
Mac OS X 10.4 "Tiger" will run on a PowerPC G4/800MHz machine. It is the latest OS that Apple will support on that processor, however. At this writing (January 2010), Mac OS X 10.4.11 is the latest version of Tiger.