IT Fundamentals

CPU

part of computer that is the primary data processing component

Microsoft Windows

most widely used operating system for personal computers

Hard Drive

stores all software and files on the computer

Database

software that stores organized data

Software

tells hardware what to do

file extension

3 or 4 letters at the end of a file name after a period; tells characteristics and use of the file

Bandwidth

amount of data that can be sent over a certain time period

Peer to peer

2 or more PC's connected that share resources

"S" at the end of the web address

website is secure

backup files

copying files so they don't get erased or deleted

Types of Internet Connection

Cellular

DSL

Cable

Dial Up (slowest)

Computer Virus

a harmful computer program; installed without your permission

worm

can replicate and spread without the user doing anything

Phishing

done through email; looks like a real email; has malicious links to malware

Telepresence

two way communication and collaboration tool that allows users to feel like they are in the same room

Virtualization

makes cloud computing work

Cloud Computing

delivery of shared resources through the Internet

Computer Language

binary - ones and zeroes

Cloud

where apps run

Computer Hardware

works with operating system and together they determine what the computer does

peripherals

an input device, output device, or secondary storage device that is not part of the CPU

bluetooth capability

device uses radio technology to wirelessly connect to other devices

Modem

connects directly to the internet source

Application or app

software that allows you to complete a certain task

Operating System

known as the most important software that runs on the computer

open source operating system

free and open to the public; can be accessed and modified by the user

Motherboard

main circuit board; connects all parts of the computer

peripheral device

external device; computer can run without it

WPA2

means there is government grade data in place to protect your data

Malware trick

use "exe" as file extension to makes the file work

AutoFill

automatically fills in information; should disabled on public computers

Antivirus software

protects computers from viruses and other things that would compromise your data

What to do if you use a public computer:

1. disable autofill

2. completely log out of all programs

3. completely log out of the computer

HDMI Cable

can be used for both video and sound

Troubleshooting black monitor

move and click the mouse first

step one of troubleshooting

process

Identify the problem

step two of troubleshooting

process

establish a theory about why the

problem occured

step three of troubleshooting process

test the theory

step four of troubleshooting process

Establish a plan of action to resolve the problem and implement the solution.

step five of troubleshooting process

verify if your solution worked

step six of troubleshooting process

Document findings