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Glossary of Computer Forensics Terms

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Term Definition
Uniform Resource Locator (URL)

An URL is the address of a file accessible on the Internet.

Uninterruptible Power Supply (UPC)

A power supply that can continue to provide a regulated supply to equipment even after a mains power failure, which consists of a surge protector with a built in battery. This unit damps power surges from the outlet and runs the equipment attached to it for a short time on its battery in case of power loss (i.e., the lights go out). In the case of a computer, this enables the users to save their work and ‘power down’ (turn off) the computer if the power fails.

Universal Serial Bus (USB)

A hardware interface for low-speed peripherals such as the keyboard, mouse, joystick, scanner, printer, and telephony devices.


A time-sharing operating system allowing powerful processors to share their power with many users. Xenix, AIX and Linux are some versions of Unix produced by other companies.

USB Storage devices

Small storage devices accessed using a computer’s USB ports, that allow the storage of large volumes of data files and which can be easily removed, transported and concealed. They are about the size of a car key or highlighter pen, and can even be worn as a watch or around the neck on a lanyard.

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