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    • BIOS (Basic Input/Output System)

      BIOS (Basic Input/Output System)

      The computer BIOS (Basic Input/Output System) is found on Windows computers. The BIOS is the first application launched during the computer’s boot process. The program is used to check for and initialize computer hardware during the start-up process prior to passing control of the computer to the operating system. Unlike the OS that is normally

    • Live CD

      Live CD

      A live CD is a bootable CD-ROM disk that loads an operating system and has the ability to perform a specific set of tasks or functions. Live CD Minimum Requirements A system must have the following components to boot a live CD. Some items, such as a computer case, isn’t really necessary for a computer

    • How Does a Processor Work?

      How Does a Processor Work?

      A computer processor is commonly referred to as the CPU, or central processing unit of a computer. The processor is the primary component of a computer designed to move and process data. Computer processors are commonly referred to by the speed that the CPU can process computer instructions per second measured in hertz and are

    • How to Connect SCSI to USB

      How to Connect SCSI to USB

      Computer wire connections have been redefined and reset with the emergence of the universal serial bus or USB. Nowadays, almost all modern computers are equipped with USB terminals. Consumers or new computer buyers should always make sure that the personal computer units they will be purchasing have USB terminals. That is because almost all wires

    • 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.

    • SCSI (Small Computer System Interface)

      SCSI (Small Computer System Interface)

      SCSI (Small Computer System Interface) is a set of ANSI standards for connecting devices to computer systems. The vast majority of SCSI devices are data storage devices. Standard SCSI is a parallel technology, but many serial SCSI variants exist, including FireWire and Fibre Channel. SCSI is generally considered a higher-end alternative to IDE (Integrated Drive

    • PCI Simple Communications Controller

      PCI Simple Communications Controller

      A PCI simple communications controller is a software component found on a computer that controls the PCI connected devices plugged into that computer. PCI (Practical Communication Interface) is a hardware component built into the computer that allows a wide variety of devices to physically connect to the computer via individual card slots. While the PCI

    • How a Wireless Mouse Works

      How a Wireless Mouse Works

      The mouse is an extremely popular device. While the majority of mice are connected directly to the computers peripheral input via a cord and the computer’s main power powers it, wireless mice are becoming extremely popular as they give computer users cordless accessibility to their mice and their computer. Wireless Mouse Technology Wireless mice usually

    • How to Measure Signal Quality

      How to Measure Signal Quality

      Most people usually look to Signal to Noise Ratio to measure the signal quality of either audio or video communications. Signal to noise ratio is usually written either S/N or SNR. Most of the time the signal to noise ratio is measured in decibels. A decibel is a measure of power or loudness. Not to

    • PROM (Programmable Read Only Memory)

      PROM (Programmable Read Only Memory)

      PROM stands for Programmable Read-Only Memory. It was invented by Wen Tsing Chow in 1956. Unlike a ROM chip, a PROM chip comes from the manufacturers devoid of any programming. Programming is done by the end user or the makers of electronic devices which require a permanent data storage device. Since it is cheaper than

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