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    • What is a Biometric Coprocessor?

      What is a Biometric Coprocessor?

      A biometric coprocessor is a device that is capable of scanning a user’s physical attributes in order to allow access to a building or computer network. A biometric coprocessor is essentially a fingerprint reader, but may also include sensors that analyze the user’s eyes, voice, or even breath. The term “biometric coprocessor” comes from the

    • What is a Hackintosh?

      What is a Hackintosh?

      Hackintosh is a hacked PC that runs on MAC OS X OS (“Lion”, “Snow Leopard” , “Leopard”). ¬†At first, a lot of people thought that this was impossible to run MAC OS on a non-MAC hardware because of the different software, drivers, and utilities being used between the two. It all started when Apple decided

    • DIMM (Dual In-line Memory Module)

      DIMM (Dual In-line Memory Module)

      Dual Inline Memory Module or DIMM is a series of Random Access Memory (RAM) chips mounted on a small printed circuit board. The entire circuit collectively forms a memory module. DIMMs are commonly used in personal computers, servers, and high-end workstations. The DIMM makes physical contact with the computer’s data bus through teeth like connectors

    • 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

    • How to Measure Sound Quality

      How to Measure Sound Quality

      There are many ways to measure sound quality. Many measurements have been created to specifically measure and rate the quality of sound. Here are a few of the most common types of measurements used for sound quality. THD THD stands for Total Harmonic Distortion. It is a measurement taken to view the total amount of

    • How to Restore a Dell Computer to Factory Settings

      How to Restore a Dell Computer to Factory Settings

      When a computer reaches a point where it can no longer be repaired because of viruses and malware, or it has gotten to the point where more time is spent trying to load a page than you spend using it, the time might be to do a factory restore of the computer. What this means

    • How to Replace a MacBook Pro Battery

      How to Replace a MacBook Pro Battery

      The battery that comes with the MacBook Pro will eventually need to be replaced as it is a consumable item with a finite usable life. The battery can be purchased directly from Apple Inc. or from a third party manufacturer. Only the batteries that Apple produce are really recommended as third party manufacturers may not

    • Wireless Keyboards

      Wireless Keyboards

      To provide additional portability to computer users, IT manufacturers have created wireless keyboards that do not have to be kept at the user's desk. Wireless keyboards can be used by both desktop and laptop users as the technology used in wireless keyboards is universal to all computer models. While wireless keyboards may offer additional mobility

    • EM64T (Intel 64)

      EM64T (Intel 64)

      EM64T (Extended Memory 64 Technology), now known more commonly as Intel 64 or the x64 (that is when including AMD64 too), is a 64 bit superset/extensions that central processing units (CPUs) process. It is widely used in Intel’s processors, including Pentium 4, Pentium D, Pentium Extreme Edition, Celeron D, Xeon, Pentium Dual Core, and Core

    • How Data is Stored in a Hard Disk

      How Data is Stored in a Hard Disk

      A key concept in data storage is that it is linear, logical, and systematic in nature. When someone ‘saves’ data to the hard disk, the disk will follow a logical system. A hard disk can be compared to a large, square piece of graphing paper composed of squares, a thousand long and a thousand wide.

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