Terms in this set (36)
4 functional components of the computer
examples of input devices
examples of hardware
central processing unit
What is contained in the CPU (central processing unit) or System Unit?
A. RAM (random access memory-temporary)
B. ROM (read only memory-permanent)
Random Access Memory- this is temporary
Read Only Memory-this is permanent
Examples of output devices
1. Impact (inkjet, dot matrix)
2. nonimpact (laserjet)
1. CRT (monitor)
Used to store instructions, data, and information when they are not being used in memory
Examples of storage devices
-floppy disks (A: drive)
-hard disks (C: drives)
-optical disks (D: or E: drive)
what is an erasable compact disk that can be written on multiple times?
anything with RW
- made up of 0's and 1's
-8 bits equal a byte
when a computer is turned on, the operating system is loaded into the computer's memory from auxiliary storage
2 ways to boot the computer
Turn on PC at power source (hard boot)
-hold Ctrl+Alt+Delete (to get to task manager)
2 kinds of software
examples of popular application software
-word processing software (Word)
-Spreadsheet software (Excel)
-Database software (Access)
-Presentation Graphics software (powerpoint)
examples of system software
-Apple (or Mac)
Software which can be easily used by individuals with limited training
A parasitic program buried within another legitimate program
what is a limitation of technology?
viruses can damage your files and harm the performance of the computer
scans disks and programs for known viruses and eradicates them
prevents unauthorized access to networks
internal network that only internal users are allowed to access information or resources
a way to connect computers together so that they can communicate, exchange information, and pool resources
2 kinds of network
-Local Area Network (LAN) (limited geographic area)
-Wide Area Network (WAN) (large geographic area)
Uniform resource locator
World Wide Web
the worldwide system of interconnected computer networks that makes it possible for a computer anywhere in the world to exchange information
identifies the website, which is stored on a web server
hypertext transfer protocol
questions to ask ourselves about the validity of information on the internet
-are references provided for the date?
-can the results be verified by another source?
-how up-to-date is the site?
how are people around the world using the internet?
-access a wealth of information
-send messages to other users
-shop for goods and services
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