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what are the four components of a computer system

by Arvilla Willms Published 2 years ago Updated 2 years ago
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The four main components of a computer system are input devices, output devices, processing devices and the storage devices used to store data within the computer system. Which is the most essential component of a computer? It is one of the most essential components of the computer system.

Central Processing Unit (CPU)
Memory Unit. Control Unit. Arithmetic and Logical Unit.

Full Answer

What are the 4 fundamental components of a computer system?

The four main components of a computer system are input devices, output devices, processing devices and the storage devices used to store data within the computer system. These are the hardware components of a computer system; software is a set of digital instructions for the computer stored in the memory.

What are the five major elements of computer systems?

Five Basic Components of Computer System

  • Input Devices of Computer System. ...
  • Output Devices of Computer System. ...
  • Central Processing Unit of Computer System. ...
  • ALU [Arithmetic Logic Unit] and Logic Unit of Computer System. ...
  • Control Unit of Computer System. ...
  • Storage Unit or Memory of Computer System. ...
  • Computer Software and Hardware. ...
  • Final Words | Conclusion. ...

What are five parts of the computer system?

  • Hardware (Equipment that processes the data to create information)
  • Software (Step-by-step instructions that convert data into information)
  • Data (unprocessed facts)
  • Procedures (Rules or guidelines to follow when using Hardware and software)
  • People (End user who is the most important part of IS)

What are the four subsystems of a computer?

What are The Different Types of Computer System

  • Super Computer. These are the speediest computers compared with all other computers, which have fast, amazing capacity or storage limit, expensive and require gigantic space they are called as “Super ...
  • Mainframe Computer. ...
  • Mini Computer. ...
  • Micro Computer. ...

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What are the components of a computer?

Components of Computer. The four major components of the computer, namely the input unit, output unit, processing unit, and storage unit constitute the complete modern computer system.

What is the main memory of a computer?

The main memory which is located closer to the CPU is very fast and holds the information or programs that are actively working with. But, it is volatile in nature. That means it loses all the stored data when the computer is turned off. Main memory is also named as random access memory (RAM).

What is the function of a control unit?

Control Unit controls all other units of computers. It interprets the input signal and controls the execution of the instructions. It instructs the input unit where to store the instructions received from the user, then passes the instruction to ALU for processing and after the processing is done by ALU is then passed to the memory. The main job of the control unit is to control the flow of data and instructions from the memory unit to ALU and vice versa. Sometimes it is also known as the central nervous system of the computer and synchronizes its working.

What is the CPU?

It is commonly known as the central processing unit, in short, CPU, and also considered to be the brain of the computer. CPU is further subdivided into the Control Unit and Arithmetic Logic Unit (ALU).

What is output device?

Also known as Output Device, is used to display the processed information. The common type of output devices for displaying the processed information are VDU, printer, speakers, LCD panel, multimedia projector, etc.

Where is the instruction stored?

Every instruction or data received from the input unit is stored in the memory unit. It holds the intermediate and final results before they are sent to the output device for display of the result. CPU has a relatively very small amount of memory to store a few instructions of programs or data they process.

What is the ALU in computer?

Arithmetic and Logic Unit (ALU) is the subunit of CPU where the actual processing of data is performed. CPU does this by using basic arithmetic functions like addition, subtraction, division, multiplication, and logical decision. Once the computation is done by the ALU, the processed results are transferred to the memory by the control unit and then send them to the output unit for displaying the result.

Components of Computer – Examples

Examples of Components of computer is 1. System Unit 2. Motherboard 3. CPU (Processor) 4. Memory (RAM & ROM) 5. Graphics card 6. Input Devices 7. Output Devices In today’s post, we will learn about the system unit, motherboard, CPU in detail. The next components will explain in our future articles.

SYSTEM UNIT

Here is first of all we learn about system unit (cabinet). Following is the picture of the system unit.

MOTHERBOARD

The motherboard is known as the interconnection of components in a computer. It is a circuit board. Which have ports and sockets with transistor coating to connect components together.

Different Types of Motherboard

Different types of motherboards are used in different systems like Mini ATx, Micro ATx, Flex ATx, EATx, Pico ATx, etc.

CPU (Central Processing Unit)

CPU is known as the brain of compute. It is the first priority to run the machine. CPU is a chip-based structure. It is made up of millions of transistors and logic gates. I receive the incoming instructions as input, from memory and RAM. Proceed it and gives results as output.

SPECIFICATION OF CPU

There are many confusing things are seeing. When someone talks about the specification of CPU. In the following section, we discuss some of these specifications. Including clock speed, cache memory, and operating voltages.

CPU PACKAGING

The process of installing the microprocessor in the motherboard, known as packaging. In motherboard, there are different types of packaging for different types of microprocessors.

What are the components of a computer?

Components of a Computer System. Every computer system has the following three basic components: Input unit. Central processing unit. Output unit. While there are other components as well, these three are primarily responsible for making a computer function.

What does "computer" mean?

Meaning of Computers. Computers, in simple words, are machines that perform a set of functions according to their users’ directions. Going by this definition, several electronic devices, from laptops to calculators, are computers. A computer comprises of some basic elements.

What is the function of input devices?

The main function of input devices is to direct commands and data into computers. Computers then use their CPU to process this data and produce output. For example, a laptop’s keyboard is an input unit that enters numbers and characters. Similarly, even a mouse can be an input unit for entering directions and commands.

What is the function of a control unit?

It is responsible for coordinating tasks between all components of a computer system. The control unit collects data from input units and sends it to processing units depending on its nature. Finally, it also further transmits processed data to output units for users.

Where does the data stored in a computer stay?

Once a user enters data using input devices, the computer system stores this data in its memory unit. This data will now remain here until other components of CPU process it. The memory unit uses a set of pre-programmed instructions to further transmit this data to other parts of the CPU.

Can a computer function without these elements?

No computer can function in the absence of these elements. Apart from these elements, a computer system comprises of three basic components. These components are responsible for making computers actually function. Let’s take a look at them in detail.

Why do computers have multiple cores?

Every calculation your computer makes, big or small, has to run through the CPU to change things like the words on a screen, whether an image is visible or not, and what kind of music and sounds reach your speakers . Modern CPUs have multiple cores, which makes them much better at handling several tasks at once.

What is the motherboard?

The motherboard also has your computer’s BIOS, or basic input/output system, the software that starts up your operating system. Modern computers are starting to skip the BIOS step, but there are still plenty of systems that use it. 2. CPU. The CPU, or central processing unit, controls the speed of your computer.

Why is it called a motherboard?

Motherboard. The motherboard gets its name because it connects everything else together. Every component in your computer will connect to the motherboard either directly or indirectly, and so a good motherboard is one that can send signals between components as fast as possible and with no errors along the way.

What is the purpose of a hard drive?

Your hard drive is where your computer stores all its permanent memory. When you save a file, create browser history, download music, or save while playing a video game, all that information goes onto your hard drive. There are two kinds of drive in use today in Greenwood, IN: regular hard drives that use magnets and discs to store information and solid-state drives that use flash memory and don’t need to spin any discs around. Solid-state drives are faster when you need to read memory, but magnetic drives are faster for storing files and cost less.

What are the components of a computer?

Computer systems consist of three components as shown in below image: Central Processing Unit, Input devices and Output devices. Input devices provide data input to processor, which processes data and generates useful information that’s displayed to the user through output devices. This is stored in computer’s memory.

What is the central processing unit?

Central Processing Unit. The Central Processing Unit (CPU) is called "the brain of computer" as it controls operation of all parts of computer. It consists of two components: Arithmetic Logic Unit (ALU), and Control Unit.

Where does data go in a computer?

Data entered into computer is sent to RAM, from where it is then sent to ALU, where rest of data processing takes place. All types of processing, such as comparisons, decision-making and processing of non-numeric information takes place here and once again data is moved to RAM.

What is the function of a computer?

They receive raw data which is not readable and computer system converts them into an intelligent form which makes some sense to human being which is considered to be the important and major function of the computer.

What devices do central processing units forward information to?

Once the process task of central processing unit is completed or finished it forward’s the data ,instruction and information to output devices such as printer, Computer monitor, TFT, LCD, Speaker.

What is the name of the device that displays the desired result on the screen?

When the data or information is gathered by input devices it transfers the data to the control unit for further processing and later this information or data is forwarded to output devices for displaying the desired result on the screen which is also called as VDU (Visual Display Unit).

What is the role of input devices in the world?

The input devices accept the data from outside the world It is responsible and in charge of transferring, processing, and exchanging the given instruction and information.

What is the function of input devices?

The other function of input devices are they perform an intermediate relation between outside the world and our computer. Input devices enter data from outside the world to the computer system. It can also convert information and data into human-readable form. When the data or information is gathered by input devices it transfers the data to ...

Where is the result of an operation stored?

Once the operation is finished the result or outcome is stored in ALU and after that, the data or instruction is sent or forwarded to output devices in human-readable or intelligent form.

Why are the functions of computers endless?

The Functions of Computer systems and their application are endless nowadays because of the speedy development of the modern computer. The Computer Processor which is commonly called as CPU [Central Processing Unit] is getting advanced day by day as well as the input, output, internal and external devices.

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