Computer basics

Terms Bit - a unit of information expressed as either a 0 or 1 in binary notation. Nybble - a unit of computer memory equal to half of one byte or four bits Byte - a common unit of binary digits or bits (usually eight). Unicode - is a computing industry standard for the consistent encoding, representation, and handling of text expressed in most of the world's writing systems. Glyph - a small graphic symbol. Binary - a system of numerical notation that has 2 rather than 10 as a base (multiplier).

Big Killer Monkeys Grab The Purses Data Measurements Data Measurement Size Bit = Single Binary Digit (1 or 0) Byte = 8 bits Kilobyte = (KB) 1,024 Bytes Megabyte = (MB) 1,024 Kilobytes Gigabyte = (GB) 1,024 Megabytes Terabyte = (TB) 1,024 Gigabytes Petabyte = (PB) 1,024 Terabytes Big Killer Monkeys Grab The Purses

What is a Computer A computer is an electronic device that receives data (input), processes data, stores data, and produces a result (output). The machine, wires, transistors, etc. are hardware. The instructions, or programs, for controlling the computer are called the software. Data is text, numbers, sound, images or video and is received through input devices. Information is processed data or output. Users are the people that use computers.

What can Computers do? Computers can preform basic arithmetic computations such as addition, subtraction, multiplication, and division, Computers can also preform comparisons such as greater than, less than, or equal to. Computers can also preform logical operations using logical operators, such as AND, OR, and NOT Basically: Simple Computations, Comparisons and Logical Operations