Desktop Repair in KL & Selangor
The desktop computer is completely unconnected with other components. Compared with notebooks and netbooks, the host computer and monitors are generally relatively independent. Generally, they need to be placed on a computer desk or specialized workbench, therefore it named as a desktop.
The advantage of the desktop computer is that it is durable and affordable. Compared with the notebook, the configuration is better under the same price, and the heat dissipation is better. If the accessory is damaged, the replacement price is relatively cheap. The disadvantage is heavy and power consumption.
Hardware system includes: chassis (power supply, hard disk, memory, motherboard, CPU – central processing unit, optical drive, sound card, network card, graphics card), display, keyboard, mouse, etc. (can also be equipped with headphones, speakers, printers, video, etc.) . Home computers generally have onboard sound cards and network cards. Some motherboards have integrated graphics.
The English full name of the CPU is “Central Processor Unit”. Its role in the PC can be said to be equivalent to the role of the brain in the human body. All computer programs are run by it.
The motherboard is actually a circuit board, which is densely packed with various circuits. It can be said to be the nervous system of the PC. The CPU, memory, display card, sound card, etc. are all directly installed on the motherboard, and the hard disk, floppy drive and other components also need to be connected through the wiring and the motherboard.
The computer components that are placed in the chassis are generally referred to as “hosts.” It is the most important part of the computer, the main components such as the motherboard, CPU and hard disk are in the host.
Compared with external memory such as disk, memory refers to the internal memory that the CPU can directly read, mainly in the form of a chip. Memory is also called “main memory”, referred to as “main memory”.
It is an important component for connecting the monitor to the motherboard of the PC. It is inserted in the expansion slot on the motherboard. It is mainly responsible for converting the display signal sent by the host to the display into a general electrical signal, so that the display can understand what the PC is doing.
It is one of the computer’s output devices, and its appearance is similar to that of a TV set. Monitor refers specifically to the display, and Screen refers only to the screen.
Disk and disk drive
A disk is one of the external memories of a PC, and is divided into a hard disk and a floppy disk. What they have in common is that they use magnetic media to store data, so they are called “disks.” In order for a PC to use a disk, the disk must be placed in a special device, that is, a disk drive.
Hard drive and hard drive (Hard Drive)
The hard disk is Hard Drive. Since the hard disk is built into the hard disk drive, the hard disk and the hard disk drive are generally confused.
Computer power supply and chassis
Of course, the computer must have a power supply, but the power supply of the computer cannot directly use the normal voltage of 220 volts. Inside the computer’s power supply, there is a transformer that converts the ordinary 220V mains into the voltage required by the various components of the computer. For example, the operating voltage of the CPU is usually only a few volts.
Keyboard and mouse
The keyboard and mouse are the input devices of the PC. When the keyboard is tapped, the tapped key sends a signal to the motherboard of the PC and continues to be transmitted to the CPU. The CPU will confirm the response of the pressed button according to the relevant program in the operating system.
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