Alfred is a long-time teacher and computer enthusiast who works with and troubleshoots a wide selection of computer devices.

You are watching: 4 basic operations of a computer


The four functions of a computer actually define the core factors why it was built. They include:

Data inputData processing.Information output.Data and also information storage.

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To show the four attributes of a computer, we deserve to take a look in ~ the simple steps us all go with to develop a LETTER ~ above the computer.

It starts when the user composes, inputs and edits set of letters, numbers and also symbols making use of a keyboard. The life data is climate processed and viewed real-time via display screen hardware.


Finally, the user may choose to print the letter onto paper, or much better still send that via electronic mail come designated recipients.

The very same data and information deserve to be kept digitally in disc drives and also other media for future reference.

1. Data Input

Every computer is designed through data input together a an initial function, an activity which is achieved via intake devices.

Data entry is done manually, immediately or both. Hands-on input is done via add-on peripherals like the keyboard, mouse and also stylus. Entry can likewise be completed via vocal dictation applications and also body gestures peripherals prefer Kinect and also biometric devices. Elsewhere, data input is also done using an additional storage media and also networking interfaces.


Application software supplied for this purpose will also dictate what data is entered. Word processing software is designed to input simple alphanumerical data, while a photo editing application is used to input and also manipulate images.

This data might be gotten in into a database, spreadsheet or other creates of a computerized work area.

Automated applications and robotics can also be supplied to intelligently feed data right into the computer system on station or remotely. As an example, tallying of electoral process can be achieved remotely and automatically.


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2. Data Processing

Data handling is the core duty of a computer. Processing requires manipulation of life data into prior to converting it into systematic information. Usually, data is in raw form, and will thus undergo processing before dissemination for user consumption.

The 'brain' that the computer system where data is handle is described as the microprocessor. It is likewise commonly recognized as the main processing unit (CPU) or accelerated processing unit (APU).


The processing chips in contemporary personal computer devices continue to evolve and also outperform that predecessors. One particular evolution is the merger of microprocessor and graphics processing unit (GPU) into what is now known as sped up processing unit. The merger enables for the integration of an effective graphics processing abilities within the timeless arithmetic and logical computations of the processor.


Besides the microprocessor, the dynamic random access memory (DRAM) and also static random access memory (SRAM) are integral parts of data processing. Data gotten in via input gadgets is save on computer temporarily in DRAM, then moved to SRAM from where the microprocessor manipulates it.


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An AMD microprocessor, inserted onto a laptop motherboard socket

An AMD microprocessor in a laptop computer


3. Information Output

When life data has been manipulated by the microprocessor, the result is intended to it is in disseminated for helpful purposes. The calculation is thus referred to together information and is advantageous to the computer system user.

Processed data or information can be,

viewed as alphanumeric, pictures and video via a screen hardwarelistened to as audio files by use of a speakerprinted as hard copy output onto paperprinted as 3D models
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4. Data and Information Storage

The fourth and also equally really important function of a computer system is data and information storage. After sleepless nights of video and animation creation and also editing, the user wants to have the perfect product stored for future circulation and extr editing.


A computer can store information internally and externally. The tough disk drive (HDD) and/or solid-state disk drive (SSD) are internal storage devices and also serve to protect and also house every data and also information top top a computer. In larger systems, the RAID mechanism is used. Many disk drives operate simultaneously come ensure data and information integrity.

External warehouse is completed through equipment that affix externally come the computer. They incorporate external drives and optical disks.

Better still data and information deserve to be stored online in cloud remedies for a fees or because that a dues if large space is required.

Storage truth is a critical phase that have the right to actually recognize the worth of a computer system system. In any type of case, what usage is a computer without data and information?


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This short article is accurate and also true come the best of the author’s knowledge. Content is for informational or entertainment purposes only and also does no substitute for an individual counsel or experienced advice in business, financial, legal, or technological matters.


© 2013 Alfred Amuno

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