Computer Quiz

Hertz (Hz)

a frequency of one cycle per second

plug- in

a program that extends the capability of a Web browser or other application

driver

a small program that tells the operating system how to communicate with a specific device

URL

a unique address for a page or file on the World Wide Web.

plug and play

automatically configures new devices as you install them

ROM (Read Only Memory)

refers to non-volatile memory chips storing permanent data and instructions

utility program

s a type of system software that allows a user to perform maintenance-type tasks

Domain Name

the text version of the IP address

RAM (Random Access Memory)

the volatile memory chips in a computer

DNS (Domain Name Server)

translates the domain name into its associated IP address

Parallel Processing

uses multiple processors simultaneously to execute a single program or task

Non- Volatile Memory

does not lose its contents when power is turned off

VoIP (Voice Over IP)

enables users to speak to other users over the Internet

CPU (Central Processing Unit)

interprets and carries out the basic instructions that operate a computer

ISP (Internet Service Provider)

is a business that provides individuals and organizations access to the internet

stand-alone operating system*

is a complete operating system that works on a desktop computer, notebook computer, or mobile computing device

IP adress

is a number that uniquely identifies each computer or device connected to the internet

firewall

is a program that detects and protects a personal computer from unauthorized intrusions

operating system(OS) *

is a set of programs containing instructions that work together to coordinate all the activities among computer hardware resources

Word Size

is the number of bits the processor can interpret and execute at a single time. Current PC processors are usually 64-bit processors

Volatile Memory

loses its contents when power is turned off. RAM is usually volatile memory

embedded operating system*

resides on a ROM chip in a mobile device or consumer electronic device