CIS 1200 Chapter Notes - Chapter 2: Printed Circuit Board, Petabyte, Hdmi

• School: University of Guelph
• Department: Computing and Information Science
• Course: CIS 1200
• Professor: John Saville

Document Summary

Computers: are data processing devices that perform four major functions: it gathers data (or allows users to input data, it processes that data into information, it outputs data or information, it stores data and information. Data: is a representation of a fact or idea. Data can be a number, a word, a picture, or even a recording of a sound. Information: is data that has been organized or presented in a meaningful fashion. Each 0 and 1 is a binary digit or bit. Computer thinks in numbers of 0"s and 1"s called binary language. Eight binary digits (or bits) combine to create a byte. If 8 bits are put together there are 256 possible combinations that they can be put in. In computers, each letter of the alphabet, each number, and each special character consists of a unique combination of eight bits (one byte) a string of 0s and 1s.