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    • Network Attached Storage

      Network Attached Storage

      Network Attached Storage (NAS) is a term used to describe a complete storage system which is designed to be attached to a traditional data network. This differentiates Network Attached Storage devices from SAN's (Storage Area Networks). A SAN is a separate network to which storage devices are attached. In most cases, Network Attached Storage is

    • Screen Spanning

      Screen Spanning

      Screen spanning is a computer system obtaining dual monitors while working correctly. In other words, to have more than one monitor for a single computer. Instead of running several applications on one monitor, multiple monitors can be used for several, individual purposes ( i.e, having one monitor display communication devices while the other monitor display

    • HRTF (Head Related Transfer Function)

      HRTF (Head Related Transfer Function)

      HRTF (Head Related Transfer Functions) refers to a technique used in audio recordings in order to produce binaural signals from a monaural source. While monaural signals refer to sounds that a signal source produces and both ears hear them at varying distances and frequencies, binaural signals refer to sounds that two separate sources produce and that each ear

    • NVRAM (Non-Volatile Random Access Memory)

      NVRAM (Non-Volatile Random Access Memory)

      NVRAM is an acronym for Non-Volatile Random Access Memory. NVRAM is a type of Random Access Memory (RAM) that retains its information when power is turned off. The NVRAM is a small 24 pin DIP (Dual Inline Package) integrated circuit chip and is thus able to obtain the power needed to keep it running from

    • What is a Print Server?

      What is a Print Server?

      A print server is a computer or device that is connected to one or more printers and handles all of the processes for each printer. Any computer that is connected to a printer can be considered a print server. Print servers allow the user to have a central control center for all printers in use

    • Pointing Devices

      Pointing Devices

      A pointing device is any piece of hardware that is used to allow a user to input spatial data to a computer. By moving a mouse, pen or a finger around, a user can implement movements and changes on the computer screen. The most common type of pointing device is the mouse and the arrow.

    • How to Format a Hard Drive

      How to Format a Hard Drive

      Formatting a hard drive often becomes necessary when Trojans or viruses that are difficult to remove infect it or when there are bad sectors on it. A hard drive should be divided into small partitions to utilize the space effectively. A hard drive can also be formatted in order to reorganize the space available. Remember,

    • QVGA (Quarter Video Graphics Array)

      QVGA (Quarter Video Graphics Array)

      QVGA (Quarter Video Graphics Array or Quarter VGA) is a type of resolution whose dimensions are 320×240 pixels. The QVGA display is normally found in devices such as mobile phones and PDAs. The display is also common on other hand-held devices such as game consoles. Resolution Most of the time, the display is in the

    • Who Invented the Microphone?

      Who Invented the Microphone?

      A microphone is a device that converts acoustic power into electric power. Both the acoustic power and the electric power have similar wave characteristics that convert sound waves into electric voltages that eventually convert back into sound waves through speakers. Microphone were used with the first telephones, and then with radio transmitters soon after. Sir

    • Fingerprint Scanners

      Fingerprint Scanners

      Fingerprint scanners are biometric security systems designed to use the distinct features of an individual's fingerprints to provide security. Fingerprint scanners are now being used in police stations, security-intensive industries and, most recently, on computer shops as a peripheral device for computers. Biology of a Fingerprint Every person has marks on his fingers. These marks

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