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Lesson 3

Firewall a combination of hardware and software that creates a buffer between an internal network and the internet to prevent unauthorized access
Hackers Expert computer users who invade someone else's computer.
Modem Communications hardware device that facilitates the transmission of data
Parallel Ports Computer ports that can transmit data eight bits at a time; usually used by a printer
Plug and Play Technology that allows a hardware component to be attached to a computer so that is automatically configuered by the operating system, without user intervention
Serial ports Computer ports that can transmit data one bit at a time; often used by a modem or a mouse.
Surge protecters Devices that protect electronic equipment from variation in electric current.
Trouble Shooting Analyzing problems to correct faults in the system
Uninterruptible power supply (UPS) A battery power source that provides electric current during a power outage
Universal serial bus (USB Standard for computer ports that support data transfer rates of up to 12 million bits per second
Virus A computer program that is written to cause corruption of data
Created by: Brian.Mason