CIS Exam 1

Bit

the smallest unit of data that a binary computer can recognize

Coding systems

ASCII, EBCDIC, Unicode

Flash memory

consists of nonvolatile memory chips that can be used for storage by the computer or user

Moore's Law

states the number of transistors per square inch on an integrated circuit will double every 2 years

pipelining

a technique that allows a CPU to work on more than one instruction (or stage of processing) at a time

digitization

the process of transforming data into 1's and 0's (letters, numbers, sound, graphics)

binary number system

The number system used by computers; it has only two numbers, 0 and 1, called binary digits, or bits.

sampling rate

the fixed time intervals at which a sound wave is sampled (how sound is digitalized)

pixels

digital images are made up of a grid of small points called...

resolution

the degree of sharpness of an image based primarily on the number of pixels

pixel color

expressed using numbers that represent combinations of red, green, and blue (3 bytes per pixel or one byte for each color)

forensic audio

uses digital processing to detect, enhance, edit, and "clean" sounds to assist in criminal investigations