Demonstration of computer component (RAM, ROM, microprocessor, port, expansion slot and power supply attached to the computer system).

Demonstration of computer component (RAM, ROM, microprocessor, port, expansion slot and power supply attached to the computer system).

Every computer system contains different brands and models of components, but whether desktop or laptop, most computer share the same basic types of parts. The system unit is the heart of the computer system. The system unit contains some of the following:

Ø Mother board and cards

Ø Connecters

Ø Ports

Ø Expansion slot

Ø Microprocessor

Ø ROM( read only memory)

Ø RAM( random access memory)

Ø Power supply

 

MOTHER BOARD:

If we look inside the system unit, we will see the huge circuit board that fills one side of the system unit. This is the main circuit board inside the system unit. It is known as mother board. It is very necessary for the computer system unit. It provides electrical connections and communications path ways to the various parts of the computer. The mother board is the core component of the computer. It is called the mother board because all our computer components of the computer like card, processor, memory, ports, and connectors are connected and controlled by it. They all need to connect to the mother board to work together. The mother board is the core component of thecomputer. It is called the mother board because all our computer components of the computer like card, processor, memory, ports, and connectors are connected and controlled by it. They all need to connect to the mother board to work together.

EXPANSION SLOT:

Most computers have expansion slots on the mother board that allows us to do various types of expansion cards. These are some time called PCI (peripheral component inter connect) cards. We may never have to add any PCI cards because most mother boards have built in video, sound, network, and other capabilities. However if we want to boost the performance of our computer or update the capabilities of an older computer, we can say always add one or more cards. Below are some of the common types of expansion cards.

SOUND CARD:The sound card are also called an audio card, is reasonable for what we hear in the speakers or head phones. Most mother boards have integrated sound, but we can upgrade to a dedicated sound card for higher quality sound.

 

GRAPHIC CARD:The graphic card also called the video card is responsible for what we see on the monitor. Most computers have a GPU (graphics processing unit) built into the mother board instead of having a separate video card or graphic card. If we like playing graphicsintensive games, we can add a faster video card to one of the expansion slots to get better performance.

NETWORK INTERFACE CARD:The network interface card allows our computer to communicate over a network and access the internet. It can either connect with an Ethernet cable or through wireless connection often called Wi-Fi. Many motherboards have built in network connections and a network card can also be added to an expansion slot.