Unit 1- Basics

Terabyte

1 trillion bytes

Kilobyte

This is a unit of data measurement that is equivalent to approximately one thousand bytes of data. It's actually 1,024 bytes!

Gigabyte

a unit of information equal to one billion (1,073,741,824) bytes or 1024 megabytes

Hz

hertz (a unit of frequency)

Clock

n. a device that measures and shows time

MHz

(MegaHertZ) One million cycles per second. It is used to measure the transmission speed of electronic devices, including channels, buses and the computer's internal clock. A one-megahertz clock (1 MHz) means some number of bits (1, 4, 8, 16, 32 or 64) can be manipulated at least one million times per second.

Byte

A standard unit to measure computer memory, usually consisting of 8 bits

CPU

Abbreviation of central processing unit. The CPU is the brains of the computer. Sometimes referred to simply as the processor or central processor, the CPU is where most calculations take place.

Ghz

Gigahertz, a measure of frequency. A one GHz processor can cycle through its registers 1 billion times in one second.

Frequency

In sound perception, it is the number of sound wave cycles per second.

KHz

Kilohertz. (1,000 hertz/cycles per second).

Megabyte

a unit of information equal to one million (1,048,576) bytes