Computer components

By Jianne Asotigue 9Y

CPU

CPU means central processing unit. Two suggestive pieces of a CPU are the arithmetic logic unit (ALU), which acts arithmetic and logical actions, and the control unit (CU), which a selection of instructions from memory and works out and put them away, calling on the ALU when wanted. Not all computer systems trust on a central processing unit.
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Power supply

The function of power unit is to alter the electrical power (AC) comes from wall socket to a right type and voltage (DC) so that each part of a computer works properly. Luck of proper supply of power will ruin a computer system. The power supply gets 120 or 230V and alters into 3.3V, 5.5V and 12V. Why different converted power? Its because all the parts of a computer system don’t need the same power. For example, motherboard and cards use 3.3V. The most power need parts such as Fan and drives need 12V to operate.
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Motherboard

The function of the motherboard is a printed circuit board including the key units of a computer or other devices, with links for other circuit boards to be allowed into.
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RAM

RAM stands for "Random Access Memory," RAM is lively, meaning that it happens only while the computer is powered on and adjusts along with the system's prompt requirements. RAM is made up of tiny memory chips that make a memory module. These modules are installed in the RAM socket on the motherboard of the computer.

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Video card

A video card connects to the motherboard of a computer system and formulates output images to demonstrate. Video cards are also referred to as graphics cards. Video cards add a processing unit, memory, a cooling gear and connections to a display device.
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Hard disk

There are two general types of hard drives: hard disk drives (HDD), which use one or more moving discs and trust on magnetic storage, and solid-state drives (SDD), A hard drive is a stable storage device, so even when the computer is turned off the information will still be there. The operating system, program files, and all data files are put on the hard drive. A computer can function without a hard drive but there would be no operating system or programs so it would be of very little use.
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