Computer science information and technolgy

Q.A computer cannot "boot" if it does not have the _____

A) Compiler
B) Loader
C) Operating system
D) Assembler

4 Bits = 1 Nibble
8 Bits = 1 Byte
1024 Bytes = 1 Kilo Byte ( KB )
1024 KB = 1 Mega Byte ( MB )
1024 MB = 1 Gyga Byte ( GB )
1024 GB = 1 Tera Byte ( TB )
1024 TB = 1 Peta Byte ( PB )
1024 PB = 1 Exa Byte ( EB )
1024 EB = 1 Zetta Byte ( ZB )
1024 ZB = 1 Yotta Byte ( YB )