Monday, February 18, 2013

COMPUTER HARDWARE

COMPUTER HARDWARE
BIOS: Basic Input Output System.
Software installed on a computer chip to regulate basic operations such as screens, hard drives, memory, VGA, etc.. Part of the operating system that can identify a set of programs used to boot the computer, before putting the system disk.BIOS contained in ROM (Read Only Memory) of the system and are generally stored permanently. Programs that use a microprocessor to turn on the computer. BIOS also regulate the flow of data between the computer and the operating system devices connected to the computer.
Bus: Line consists of a set of the same line. A set of wires that transport information to all devices in the system. Information can be data, commands or addresses.
Cache Memory: Memory speed of the CPU is able to work, to act as a buffer between the CPU and main memory is slow.
Casing: Casing. Box where the engine computer (motherboard and supporters, power supply, disk drives, hard drives, CD ROM drives). Container or place to protect the motherboard, control board, power supply disk drives and other components. A computer case is actually nothing more than a computer frame. This is a case where the components that make up a computer system, either to place the cooling device (cooling fan), and also to the electrical ground contained in existing components through the frame is made of iron. Large case with many preferred expansion, with expansion space that you can add many other devices with a device that can be added ease.Examples this as a DVD drive, a CD writer, and others. When this case is usually preferred form of tower desktop case because it has more room for expansion, and also can have a better cooling capability. ATX cases can ATatau, where the difference lies in the position of the motherboard later, as well as the power supply that came with this case. Computer cases usually come together with the power supply, although sometimes it is recommended that you buy a separate power supply so it can get a second item of equal quality are both high.
CD ROM Drive: CD ROM Tool. A drive to record or play a compact disc, which is often encountered is the CD-ROM (Read Only Memory CD) MO (Magneto - Optical) and WORM (Write Once Read Many).
CGA: Color Graphics Adapter. One type of monitor, which is a standard for low quality IBM monitor resolution, graphics dalammode can only display four colors.
Hours: Hours / timer. Frequency Generator circuit. The main source of computer electronic pulses. Hours are used to synchronize the operation of all elements of the computer.
CMOS: Compelementary Metal Oxide Semiconductor.Small size of 64 bytes of RAM that stores the BIOS settings when the computer is turned off. CMOS technology is an extension of MOS ICs that generate a low battery power needs. CMOS is used to store configuration programs, diagnostic programs and get the date and time the file will not be lost even if the computer is turned off.
CPU: Central Processing Unit. The main processing unit in technical terms is called a microprocessor, which in general that the computer was the engine casing and all the contents in it. Central processing of inputs to produce outputs. Included here are all the registers, arithmetic circuits, comparator unit, and so on.
CRT: Catoda Ray Tube technology is used to create a display / monitor computer systems using cathode ray tubes. Disk: A data storage media. What is meant by the disk is a floppy disk or hard disk. While the floppy disk floppy. Dish coated with a thin magnetic material (iron oxide) that is capable of storing large amounts of data or information. Read and write information centered on the track.
DRAM: Dynamic RAM. PC memory can be read and written. To store data in memory, it is necessary periodically. This type of memory is widely used in the main memory used for routine processes.
Drive: Doors, disc.
EGA: Enhanced Graphics Adapter. One of the standard monitor resolution. EGA is able to display 16 colors in the model graph, a notch above the CGA Monitor. Monitor EGA card capable of displaying 16 colors in the form of text (80 characters or 40 x 25 x 25 characters), 16 colors in the form of low resolution and 4 colors at high resolution and graphic display of 640 x 350 dots. The development of this type of EGA as ATI Technologies Inc. named EGA WONDER card, can display 132 x 25 characters. Monitor EGA monitor type connector still wearing the same type of CGA and monochrome monitors. Everex card issued EPGA (Enhanced Graphics Adapter Proffesional), capable of displaying 649 x 480 dots (dot) with 256 colors, from the 4096 combination of primary colors (pallette). EPGA and called Pega (Proffesional Enhanced Graphics Adapter), or PGA (Proffesional Graphics Adapter), a text screen displays 132 x 43 characters on multiple frequencies or Ulta sync, and the flexibility to use the monitor as well as enhanced monochrome monitor. This monitor uses a 9 pin connector consisting of two rows.
Hard disk: large-capacity data storage media.
Head: The head, the end of the recording, part of a drive or disk functions to read or write.
Keyboard: key board, keyboard.
Motherboard: computer circuit board where all the electronic components of the computer hanged.
Peripheral Equipment. Specifications support equipment needed by the PC in order to work optimally.
PIC: Programmable interrupt controller. Fully programmable disconnected. The chip that functions to control the interpolation process between devices. Between the peripheral control devices that assist the CPU in the process interruptions.
Power Supply: An electronic circuit that serves as a power supply / donor source voltage / current on the equipment.
VRAM: Video Random Access Memory (RAM Video) special type of DRAM that allows direct access to high-speed memory circuit via video. This type of memory is more expensive than conventional DRAM chips.

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