What's a computer ?

THE CPU

The CPU or known as the processor is the brain of a computer. That is because it manages and handle what is happening and where the different information in a computer go. Also it's where all the processes are being carried like thoughts in your brain.The central processing unit (CPU) is the brain of your computer. It handles all the instructions you give your computer, and the faster it does this, the better. It uses electrical signals to direct the entire computer system to carry out stored program instructions. The control unit does not execute program instructions; rather, it directs other parts of the system to do so.
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RAM Chips

RAM is made up of small memory chips that form a memory module. These modules are installed in the RAM slots on the motherboard of your computer. Every time you open a program, it gets loaded from the hard drive into the RAM. This is because reading data from the RAM is much faster than reading data from the hard drive.

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hard drive

The hard drive stores all of your data inside it.It houses the hard disk, where all your files and folders are physically located. A typical hard drive is only slightly larger than your hand, yet can hold over 100 GB of data. The data is stored on a stack of disks that are mounted inside a solid encasement.
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Graphics card

A video card can be used to process the graphics portion of the processing load. Because most of today's programs are graphically oriented.The video card can help almost any program run more efficiently. However, the difference in performance is especially noticeable in image editing applications and 3D games.
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USB PORTS

These ports are used to place a USB memory stick also known as the Universal Serial Bus. Used to connect keyboards, mice, game controllers, printers, scanners, digital cameras, and removable media drives. A usb port is a very useful part of the computer because you can also use a usb stick for a very small amount of storage which is very nice.
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Audio jack

An audio jack is a port that is used to plug in headphones and speakers.
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DVI PORT

A DVI port is a Digital Visual Interface port which is used to connect a video source, such as a display controller to a display device, such as a computer monitor. It was developed with the intention of creating an industry standard for the transfer of digital video content.
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northbridge and southbridge

The northbridge is connected directly to the CPU via the frontside bus and tISresponsible for tasks that require the highest performance. The northbridge is usually paired with a southbridge, also known as I/O controller hub. In systems where they are included, these two chips manage communications between the CPU and other parts of the motherboard, and constitute the core logic chipset of the PC motherboard.
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NIC

The NIC is a card which might be big or small, it works by allowing your computer connect to a network.It implements the electronic circuitry required to communicate using a specific physical layer and data link layer standard such as Ethernet and Wi-Fi . This provides a base for a full network protocol stack, allowing communication among small groups of computers on the same local area network (LAN) and large-scale network communications through routable protocols, such as Internet Protocol
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IDE CONNECTOR

Integrated Drive Electronics (IDE) is a standard interface for connecting a motherboard to storage devices such as hard drives and CD-ROM/DVD drives. The original IDE had a 16-bit interface that connected two devices to a single-ribbon cable.
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CMOS BATTERY

The motherboard’s battery is used for low-level system functions like powering the real-time clock and storing a computer’s BIOS settings. On newer computers, the battery may only be used for the clock.
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