Parts of a computer peripherals and their function pdf

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parts of a computer peripherals and their function pdf

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Computer: A computer is a combination of hardware and software resources which integrate together and provides various functionalities to the user.

Parts of a Computer and Their Functions

Computer Diagram and Label; Diagram of a computer system unit and all the components. Diagram labeling the major components of a computer HDD. A computer system unit is the enclosure that contains the main components of a computer. It is also referred to as a computer case or tower. See; A Computer Diagram and Labels Definition A typical desktop computer consists of a computer system unit, a keyboard, a mouse, and a monitor. The computer system unit is the enclosure for all the other main interior components of a computer.

It is also called the computer case, computer chassis, or computer tower. Cases are typically made of steel or aluminum, but plastic can also be used. While most computer cases are rather dull, black, metal boxes, some manufacturers try to give the unit some flair with color and special design elements.

Functions The primary function of the computer system unit is to hold all the other components together and protect the sensitive electronic parts from the outside elements. A typical computer case is also large enough to allow for upgrades, such as adding a second hard drive or a higher-quality video card.

It is relatively easy to open up a computer system unit to replace parts and install upgrades. In contrast, it is quite difficult to open up a laptop computer, which is not designed with replacements and upgrades in mind. In most computer system units, the front side contains the elements a user needs frequently, such as the power button, an optical disk drive, an audio outlet for a pair of headphones, and a number of USB connections.

The back side contains all other connections - for power, monitor, keyboard, mouse, Internet connection, and any other peripheral devices. There are typically more connections than the minimum necessary to allow for expansion. Inside the Computer Case Once you open up a computer case, it can initially be difficult to recognize the various components, especially all the different wires.

However, if you look closely, you will probably start to recognize a number of components. In this particular example, the motherboard is placed vertically, which is quite common.

One side of the motherboard is accessible from the back of the computer case - this includes the various connectors for input and output devices as well as expansion slots for additional peripherals. The motherboard also contains the central processing unit CPU , although it can be difficult to see. A large fan is often placed on top of the CPU to avoid overheating. The motherboard also contains the main memory of the computer.

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Computer Hardware

What is a Computer System Unit? A computer system unit is the enclosure that contains the main components of a computer. It is also referred to as a computer case or tower. Definition A typical desktop computer consists of a computer system unit, a keyboard, a mouse, and a monitor. The computer system unit is the enclosure for all the other main interior components of a computer. It is also called the computer case, computer chassis, or computer tower.


A peripheral is a device that can be attached to the computer processor. different styles have been experimented with to try and group the keys in When the shutter is opened light passes through the lens affecting parts of the film. Later the.


Peripheral device

Peripherals are devices that are not the computer's core architecture involved in memory and processing. Peripherals include input hardware, output hardware and storage devices. A typical desktop computer could include:. Peripherals connect to the processor hardware through the motherboard.

Peripheral device

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Although there are many different types of computers available, on a typical computer you will always find several components. Buttons Every computer, regardless of type, will have some way in which to turn the system on. The power button on a computer is what turns it on. Depending on the computer type, you may also see buttons that adjust sound and screen settings, as well as a button to restart the computer. You may also see a button allowing a user to eject a disk. Vents As a computer is being used, it is generating heat. To dissipate the heat generated, most computers will contain a fan and at least one externally located vent that cools down the electronic components of the computer.

Hardware refers to the physical, tangible computer equipment and devices, which provide support for major functions such as input, processing internal storage, computation and control , output, secondary storage for data and programs , and communication. A computer system is a set of integrated devices that input, output, process, and store data and information. Computer systems are currently built around at least one digital processing device. There are five main hardware components in a computer system: Input, Processing, Storage, Output and Communication devices. Are devices used for entering data or instructions to the central processing unit. Are classifie according to the method they use to enter data. Keyboard similar to a typewriter is the main input device of a computer.

A peripheral device is generally defined as any auxiliary device such as a computer mouse or keyboard, that connects to and works with the computer in some way. RAM—random access memory—straddles the line between peripheral and primary component; it is technically a storage peripheral, but is required for every major function of a modern computer and removing the RAM will effectively disable any modern machine. Many new devices such as digital watches, smartphones and tablet computers have interfaces which allow them to be used as a peripheral by a full computer, though they are not host-dependent as other peripheral devices are. According to the most technical definition, the only pieces of a computer not considered to be peripherals are the central processing unit, power supply, motherboard, and computer case. Usually, the word peripheral is used to refer to a device external to the computer case, like a scanner, but the devices located inside the computer case are also technically peripherals.

Peripheral device

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