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Lesson 3
Question | Answer |
---|---|
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 |