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    • 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

    • USB (Universal Serial Bus)

      USB (Universal Serial Bus)

      USB is an external hardware interface and communication standard used for connecting varied peripherals to a computer. These peripherals include mice, keyboards, scanners, digital cameras, mobile phones, printers, digital audio players, external hard drives, memory sticks, gaming peripherals and so on. It supports plug and play installation and hot plugging. USB has almost entirely replaced

    • 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

    • What Are IDE Hard Drives?

      What Are IDE Hard Drives?

      Integrated Drive Electronics or (IDE) are a type of hard drive controller which bundles the components of the hard drive and its controller into one interface. This allows for much simpler installation of the hard drive into the system by removing the difficulties associated with the separation of the components and controllers such as the predecessor

    • VGA Cable

      VGA Cable

      VGA (Video Graphics Array) cables connect computers with monitors or television sets. The cables are based on the graphics standard that IBM developed on personal computers sold during the 1980s. Since that time, almost all personal computers that are built to support the Windows operating system (OS) incorporate support for VGA connections and the more

    • How to Reset an IBM ThinkPad BIOS Password

      How to Reset an IBM ThinkPad BIOS Password

      An IBM ThinkPad laptop can have three hardware password sets: Power-On Password Hard Disk Password Supervisor Password Power-On Password RT/CMOS RAM has 8 bytes reserved for the power-on password and the check character. The 8 bytes are initialized to hex 00. The microprocessor can access these bytes only during POST. After POST is completed, if

    • How an Inkjet Printer Works

      How an Inkjet Printer Works

      Inkjet printers contain hundreds of parts all working together to put millions of microscopic dots onto paper. There are five main components of an inkjet printer: print head, paper feeder, circuit board, power supply, and the case. Of these, the print head and paper feeder are the most interesting. The Print Head The print head

    • How to Print to a File

      How to Print to a File

      When a document or other item is printed to a file instead of a local or networked printer, it allows the file to be saved in a format that can be used by a different printer. Information such as page and line breaks, font spacing, and other layout information is saved when printing a document

    • ROM (Read Only Memory)

      ROM (Read Only Memory)

      Read-Only Memory or ROM is an integrated-circuit memory chip that contains configuration data. ROM is commonly called firmware because its programming is fully embedded into the ROM chip. As such, ROM is a hardware and software in one. Because data is fully incorporated at the ROM chip’s manufacture, data stored can neither be erased nor

    • How to Access BIOS

      How to Access BIOS

      The Basic Input/Output System is a program that is built into a computer’s motherboard that offers access to the hardware’s setup and configuration. During the initial boot phase, the BIOS is accessed and acts as the controller for processes such as booting the operating system. All Microsoft Windows operating systems must use BIOS to boot

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