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    • Blu-Ray

      Blu-Ray

      Blu-ray is an optical storage format developed by Sony and Phillips. It was created to store large amounts of high definition video and sound. Blu-ray’s name came from the type of laser it uses to read and write data. The laser is a hue of blue-violet. A blue-violet laser has a shorter wavelength than the

    • How to Clean an LCD Screen

      How to Clean an LCD Screen

      No matter where LCD screens are kept, they will always need cleaning from time to time. Cleaning an LCD may seem like a daunting task, but there are a few simple ways to clean it without damaging to scratching to surface. Retail There are many cleaning solutions available in shops. However these may seem a

    • 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

    • USB Device Not Recognized

      USB Device Not Recognized

      A common problem that arises for computer users is dealing with the USB Device not recognized error. This error is thrown after an electronic device is connected to the computer or USB hub but is not automatically detected. When the error occurs, the Windows Device Manager may also list the component as an “unknown device”

    • SPDIF

      SPDIF

      SPDIF, or the Sony/Philips Digital Interconnect Format) is used to carry or transport digital audio signals in consumer electronic equipment such as CD and DVD players, PC audio cards, and car audio systems over short distances. The digital signal can be carried over fiber optic (TOSLINK connectors) or coaxial cable (RCA connectors) and is also

    • HSS Speakers

      HSS Speakers

      Conceptually, hypersonic sound (HSS) systems do to sound what laser technology does to light – focus sound into a tight beam that can travel great distances without dispersing. HSS systems can create sound that is meant only for a certain individual(s), not for everyone who just happens to be in the vicinity. HSS Speakers versus

    • How Are Computers Made

      How Are Computers Made

      Because the modern world is built upon computers and other forms of technology, it is important for users to understand how computers work and how they are made. The construction of a computer may seem like a rather complicated process, and it is, but if taken one piece at a time, one can see that

    • How to Burn an ISO Image

      How to Burn an ISO Image

      An ISO file contains not only files and folders but also the disk file system metadata. This includes boot code, structures, and attributes. This is why burning an ISO image is different from writing files from a CD or DVD. To burn an ISO image, you need a CD or DVD burning program that can

    • 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

    • The Difference between Bit Rate and Baud Rate

      The Difference between Bit Rate and Baud Rate

      The difference between Bit and Baud rate is complicated and intertwining. Both are dependent and inter-related. But the simplest explanation is that a Bit Rate is how many data bits are transmitted per second. A baud Rate is the number of times per second a signal in a communications channel changes. Bit rates measure the

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