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What is the Full form of DVD? The full form of DVD is Digital Versatile Disc. DVD is a digital optical disc storage format which was developed and invented in 1995 and used to store high-capacity files, such as top-standard videos and movies. VCDs were standard optical digital storage disks before invention, but DVDs have higher capacity than compact discs of almost the same size and shape. The unofficial full name of DVD also existed, and it was named Digital Video Disc. But as DVDs were not merely restricted to videos, mass technology forums denied this full term. In 1995 Four companies called Sony, Philips, Sony, Panasonic, and Toshiba, discovered and developed it. History of DVD The DVD was first developed to replace VHS tapes but soon became famous as a storage device. In 1972, Audio-CD was established as an entertainment tool. In 1993, two types of video disks were developed, the MMCD (Multimedia Compact Disc) and the SD (Super Density). Categories of DVD A D...

Introduction to POST and its Different Types of  Errors Power-on Self-test What Is Power-on Self-test What is POST? POST, referred to as Power-On Self-Test, is the initial setup of its power-on purpose to determine if there are hardware-related issues with the computer for proper diagnostic testing. The computer is not the only device running POST. Some devices, medical devices, and other devices can also perform very similar self-tests after they are powered on. If all hardware passes the power-on self-test, the computer will continue the boot up process and may generate a single beep sound as well. If the power-on self-test is unsuccessful, it generates a beep code to indicate the error encountered and the computer will not boot up. All computer POST errors are related to hardware issues with one of the components in the computer. The Role of POST in the Startup Process The power-on self-test is the first step in the boot sequence. It doesn't matter if you just restart yo...

1. Data READ/WRITE Principle WRITE process: Magneto ‐ optical (MO) disk drive reads and writes data on the MO disk in principle of "Magneto ‐ optical effect”. It employs laser to read data on the disk, while it needs magnetic field to write data in addition to laser. MO disk drive is so designed that an inserted disk will be exposed to a magnet on the label side and to the light (laser beam) on the opposite side. This MO film has a lot of expressly micro magnetic domains vertically aligned on the disk surface. The magnetic domain, though small ‐ sized, has a powerful magnetism enough not to be affected by magnetic field available in general environments. On the other hand, the magnetic domain has a characteristic that its magnetic force will decrease according to the temperature increase. Once the temperature rises to a certain level, the magnetic domain loses its characteristic as a magnet. This temperature ranges, 300 while it varies with the MO film's compositio...

Zip drive The Zip drive is a medium ‐ capacity removable floppy disk storage system that was introduced by Iomega in late 1994. Originally, Zip disks launched with capacities of 100 MB, but later versions increased this to first 250 MB and then 750 MB. A Zip drive is a removable, magnetic disk storage system for computers. Introduced in the mid ‐ 1990s it provided much more storage capacity than floppy disks. By the early 2000s Zip drives became largely obsolete with the advance of USB flash drives, recordable CDs and external hard disks. Introduction In the early 1990s, the 3 inch ‐ floppy disk was the most widely used removable storage system for personal computers; however, a typical floppy could not store more than about 2 MB of data. That is really small by today's standards ‐ you could not even fit a single MP3 song on a floppy. Even at the time, many computer users had a need for larger removable storage. In 1994, the company Iomega introduced the first Zip drive....

DAT (Digital Audio Tape) is a standard medium and technology for the digital recording of audio on tape at a Professional level of quality. A DAT drive is a digital tape recorder with rotating heads similar to those found in a video deck. Most DAT drives can record at sample rates of 44.1 kHz, the CD audio standard, and 48 kHz. DAT has become the standard archiving technology in professional and semi ‐ professional recording environments for master recordings. Digital inputs and outputs on professional DAT decks allow the user to transfer recordings from the DAT tape to an audio workstation for precise editing. The compact size and low cost of the DAT medium makes it an excellent way to compile the recordings that are going to be used to create a CD master. As an archiving medium, DAT is an alternative to consider along with Digital Data Storage (DDS1 through DDS3) Optical disc VHS tape Acronym for digital audio tape, a type of magnetic tape that uses a scheme called helical scan to re...

  The Computer Motherboard Connects All The Parts (Components) Of A Computer Together. Motherboard is the Heart of any Personal Computer The motherboard is the most important component in the PC. The entire component such as RAM stick, hard disk drive, optical drives, processor, processor fan and external card are plug-in into motherboard. Computer motherboard is single platform to connect all of the parts (components) of a computer together, hence it considered as the backbone of a computer. Below Diagram show Component of Motherboard Here we are using Asus H110M-cs motherboard (1)  TPM connector (14-1 pin TPM) (2) ATX power connector (3) CPU socket   (4) CPU and chassis fan connector (5) DDR4 DIMM slots  (6) Serial ATA connector (7) System Front panel connector (8) Chassis intrusion head  (9) Speaker Connector  (10) PCI Express  (11) Clear RTC RAM  (12) Front panel audio connector (13) Serial port connector (...