BIOS stands for Basic Input/Output system. UEFI stands for Unified Extensible Firmware Interface. BIOS deals with Hardware device code but UEFI deals with the firmware level.
The difference between BIOS and UEFI is built into the motherboard chipset; you cannot change an existing motherboard from BIOS to UEFI, all you can do is replace the entire motherboard (and probably the CPU and the RAM as well) with an UEFI based motherboard. (Deleted the previous answer in its entirety because it was compl Save etely incorrect)
Device Driver
You need a computer to ask why you need a computer. you need computers to find out information
Probably the most common that can happen if you install Windows AFTER Linux on a Legacy BIOS system is that the bootloader WILL be overwritten, rendering Linux unbootable. Fixing this is as easy as running a Linux boot disk and doing a grub-install. UEFI systems it's not a worry as much since bootloaders co-exist within UEFI systems, and usually UEFI will be the bootmanager itself. What might come up (Though I have not tested this yet.) is Windows will put its bootloader FIRST in the boot order in the UEFI bootloader, but it's not hard to change UEFI's boot settings, provided the implementation is sane.
I am not sure if this is correct but I believe we don't need sattallites for computers but we do need them for the Internet
GRUB is a bootloader. Most Linux distributions use it, though with UEFI becoming more and more prevalent, some users are abandoning GRUB in favor of simply allowing UEFI to load their kernel directly.
you don't need computers in the Boss tier. computers are needed in the under boss tier. approx you will need 300 of them.
It is there to install the operating system on a machine with a UEFI enabled BIOS. On such machines the computer executes code inside an \Efi folder rather than code stored on hidden sectors on the disk. All new Windows 8 computers with the MS sticker use UEFI rather than the much older 16 bit BIOS or emulation of the same. EFI is only supported on 64 bit versions of the operating system.
Technically, only two or three. In some distributions its even possible to install all in one partition, but I don't recommend this. These days it's hard on BIOS computers to get all the partitions you want, since between Windows and your OEM you'll have three out of four of your partitions used, you'll need to set up an extended partition. Unless you're on UEFI! In which case you're golden.
UEFI & TPM
Computers are good because if you need information a computer is what you need can anyone tell me i dont have any reasons:)