The term PC and the concept of a personal computer has been linked to IBM since its introduction of the first in a series of Personal Computer Models known as IBM PC in 1981. The hard disc is a silver colored platter that has a magnetic coating. It is sealed inside a box called the hard drive inside your computer.
Bit actually stands for B inary D igit.
Eight of these 1's or 0's make up a byte. A Megabyte is actually 1,000,000 bytes. The CPU, also known as the Central Processing Unit is a chip that is actually the brain of the computer. It is also called the processor. Temporary storage is used the most often.