Today a computer is being used in every field or say that computer has become the need of the hour today. Today you can see the use of this electronic machine in every sector such as banking, medical, business, science, and research and is playing its important role.
Today, many tasks seem difficult without computers, which are getting easier with this help. So, the curiosity of knowing about this machine increases even more, what is a computer? How Computer Works
It is also natural to have curiosity.
So in this article, you will get answers to some similar questions. So let’s know what is a computer?
Definition of Computer by GetOnlineSolution
Here we have given a simple definition of computer that does not completely define the computer.
“A computer is an electronic machine that primarily calculates. The word computer is derived from the Latin language “Compute”. Which means to calculate. For this reason, a computer is also called a calculating machine.”
In other words,
“A computer is a programmable machine, designed to solve or complete numerical mathematical or logical operations automatically by means of computer programming.”
Another definition of Computer
Computer working process or functioning
Computer work is mainly completed in three steps.
- Input data (taking data as input.)
- Processing Data (Processing or calculating data.)
- Output Data (To give the result data as output after the process.)
A computer has the ability to accept input data, process it and then output it.
The computer can store the data in its storage device (memory) for later use and retrieve it when needed.
What is Input
What are process and processing
The sequence of events in which a program is run in a computer is called a process. Any type of program that is running and working on your computer. Process is a name (noun) and processing is its verb.
What is Output
The result which is given by the computer after completing a task is called output. The data given as the result is called output data. This output data can be in many forms such as Text, Video, Audio, Images, etc.
The main parts of a computer that make up a computer.
There are two main parts of a computer that make a computer and are capable of functioning. Both are useless without each other.
Those two main parts of the computer are listed below.
What is Hardware
Hardware is the physical part of a computer that interconnects and makes a computer.
Hardware means all the physical parts that we can see, touch and feel with hands.
Computers consist of many types of hardware. We can divide these hardware into different categories based on their usage and ability to work. Which makes it easier for us to remember and identify them.
Categories of Computer Hardware
There are Four main categories of hardware based on work and capacity.
- Input device
- Processing device
- Output Device
- Memory or Storage Device
What is Input device
The devices used to instruct and operate or control the computer are called input devices. The following is an example of an input device.
List of input devices
- Light Pen
- Barcode Reader
What is processing device
The device that processes the given data as input, and gives the output, is called a processing device.
The main example of a processing device is the CPU (Central Processing Unit).
What is Output Device
The device which provides the output of the data processed by the processing unit in the form of text, audio, video, graphics or images is called an output device.
An example of an output device is a monitor, which shows the output as text, video, graphics, or images.
List of the Output Device
What is Software
Software is a set or collection of data, instructions, or programs that tell a computer what to do and how to do it.
The software mainly makes computer hardware workable.
The main example of software is the operating system. Which controls the system and establishes communication between the user and the computer. With the help of the operating system, the user is able to talk to the computer.
There are mainly two types of software.
- System Software
- Application Software
List Of System Software
- Microsoft Windows
List of Application Software
- MS Word
- Real Player
- Media Player
- Apple Numbers
- Microsoft Excel
- MS Access etc
- Microsoft PowerPoint
How many types of computers
A computer can be divided in many ways. Computers can be divided based on their usage, size, and processing power.
There are three main types of computers and all three have other subcategory.
List of computer
- Analog Computer
- Digital computer
- Mainframe Computer
- Mini Computer
- Desktop Computer or Personal Computer(PC)
- Notebook Computers or Laptop
- Handheld Computer or Personal Digital Assistant(PDA)
- Smart Phones
- Hybrid Computer