Essential Introduction to Computers

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Computer

an electronic device, operating under the control of instructions stored in its own memory
*Input
*process
*output
*storage

computer users (end users or users)

people who use the computer directly or used the information it provides

Six primary components of a computer

*input devices
*the processor
*memory
*out put devices
*storage devices
*communication devices

Input device

any hardware component that allows you to enter data, programs, commands, & user responses in computer

stylus

small metal or plastic device that looks like a ball point pen but uses pressure instead of ink

what does the mouse control?

the movement of the pointer

system unit

a case that contains electronic components of the computer used to process data

motherboard (system board)

contains processors, memory, & expansion slots

the processor (central processing unit or CPU) interprets and carries out the ___.

basic informations that operate a computer
Ex: Intel & AMD

memory (random access memory or RAM) consists of __.

electronic components that temporally stores instructions that operate your computer.

output devices

make the informations resulting from process available for use

two commonly used output devices are

printers and display devices/monitors
More Exs: Speakers / headphones

portable storage medium

you can remove the medium from one computer to another computer

backup

a duplicate of file, programs, or disk, that you can use in case the original is lost, damaged, or destroyed

optical disc

a portable storage medium that consists of a flat, round, portable disc made of metal, plastic, & lacquer that is written & read by using a low-pressured beam

miniature mobile storage media

rewritable media usually in the form of a flash memory card, USB flash drive or a smart card

USB flash drive (or pen or thumb drive)

a flash memory device that plugs into USB port. The most common portable storage media of choice today

two types of software

system software and application software

operating system tells the computer how __.

to perform the functions of loading, storing, & executing and application

each icon represents __.

an application such as Word Processor, or a file or document where date is stored.

applications software consists of

programs designed to make users more productive &/or assist with personal task

word processing

used to create, edit, format, or print document
*Microsoft Words

spreadsheet

used to add, subtract, & perform calculation on rows & columns of numbers
*Excel

database

used to enter, retrieve, & update data in an organized & efficient manner
*Access

presentation graphics

used to create slideshows for use in a presentation to a group
*PowerPoint

local area network (LAN)

a network that connects computers in a limited geographic are

wide area network

a network that covers a large geographical area, such as, that connects the district office of a national corporation

reasons more than 1 billion people use the internet

*communicating with & meeting other people
*accessing a wealth of information, news, & research
*shopping for goods & service
*accessing sources of entertainment & leisure

web page

*can contains text graphic audio & video.
*has built in links to other web documents

web site

related - collection of webpages

web browser

software program used to access & view web pages

A web page has a unique address, called _____, which consists of protocol, domain name, sometimes a path, and the page name

URL (Uniform Resource Locator)

http:// stands for

Hypertext Transfer Protocol

ubiquitous

to appear

technological convergence

to combine

acronym

a word formed from the initial letters or groups of letters of words in a set phrase or series of words
Ex: AOL - Academy of Our Lady

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