Skip to main content

WHAT IS A COMPUTER? Hardware & Software


  • In this blog we will discuss about ,"What is computer and differences among its part as Hardware & Software".
  • We know that all information are scattered in google but I want to make it easy for our readers.Otherwise it is difficult to know which information is right and which is wrong .

  • My Blog is dedicated to learners & easy learning 

WHAT IS A COMPUTER?

What is Computer : Computer is an electronic device that is designed to work with Information. The term computer is derived from the Latin term ‘compute’, this means to calculate or programmable machine. 

Therefore computers can perform complex and repetitive procedures quickly, precisely and reliably. Modern computers are electronic and digital. All general-purpose computers require the following hardware components:

§  Central processing unit (CPU): The heart of the computer, this is the component that actually executes instructions organized in programs ("software") which tell the computer what to do.
§  Memory (fast, expensive, short-term memory): Enables a computer to store, at least temporarily, data, programs, and intermediate results.
§  Mass storage device (slower, cheaper, long-term memory): Allows a computer to permanently retain large amounts of data and programs between jobs. Common mass storage devices include disk drives and tape drives.
§  Input device: Usually a keyboard and mouse, the input device is the conduit through which data and instructions enter a computer.
§  Output device: A display screen, printer, or other device that lets you see what the computer has accomplished.


Computer has many definitions to express.

A computer is a programmable device that can store, retrieve, and process data. The term "computer" was originally given to humans (human computers) who performed numerical calculations using mechanical calculators, such as the abacus and slide rule. 




A computer is made up of multiple parts and components that facilitate user functionality. A computer has two primary categories:

1. Hardware                                                           
2.Software

Project Management  : //www.ebeescorp.com

What is Hardware ?

Hardware is an encompassing term that refers to all the physical parts of the  computer. The internal hardware devices that make up the computer and ensure that it is functional are called components, while external hardware devices that are not essential to a computer’s functions are called peripherals.

In simple language hardware are those device that you can touch or see . i.e Wire , mouse, keyboard ,drives 







What is Software ?

Software, in its most general sense, is a set of instructions or programs instructing a computer to do specific tasks.  or 

 In a simple words Software is a set of instructions given by an user to a computer and it convert it into a specific tasks. We cann't touch or feel it .

The theory of software was first proposed by Alan Turing in 1935 in his essay "Computable numbers with an application to the Entscheidungsproblem."

Software are further define into three parts:
1.System Software 
2.Application Software
3.Programming Software 

Explanation

System software serves as a base for application software. System software includes device drivers, operating systems (OSs), compilers, disk formatter, text editors and utilities helping the computer to operate more efficiently. It is also responsible for managing hardware components and providing basic non-task-specific functions. 



Programming software is a set of tools to aid developers in writing programs. The various tools available are compilers, linkers, debuggers, interpreters and text editors.



Application software is intended to perform certain tasks. Examples of application software include office suites, gaming applications, database systems and educational software. Application software can be a single program or a collection of small programs. This type of software is what consumers most typically think of as "software."



Labels:

Comments

  1. UnknownJanuary 5, 2019 at 3:19 AM

    Thanks for deeply knowledge about computers....

    ReplyDelete
    Replies
    1. EBEESJanuary 11, 2019 at 5:11 PM

      Thanks for your response, we appreciate. Please do write to us in case of anything you want us to add

      Delete

Post a Comment

Popular posts from this blog

CHARACTERISTICS OF A COMPUTER & CENTRAL PROCESSING UNIT (C.P.U)

Hello, Readers This Blog will help you understand the Characteristics of Computer & About C.P.U (Central Processing Unit ). Characteristic means Computer capabilities i.e Characteristics of Computer  1.Speed 2.Accuracy 3.Consistency 4. Data Storing Capability 5.Flexibility  A. Speed : A Computer is a very fast device .It can perform , in a few Second ,the amount of work that a human being can do in an entire year working round the clock .The speed of the computer is usually 2 to 4 GHz . A powerful computer is capable of performing  about 10 to 40 million arithmetic calculations in a second. or We can say that Computer speed is measured in   megahertz (MHz) or gigahertz (GHz). One Megahertz equals to one million ticks per second,one Gigahertz equals one billion ticks per second . B. Accuracy : The accuracy of a Computer is consistently high an the degree o accuracy of a particular task is 100% accurate.In  a every computer each and e...
Post a Comment
Read more

VIRUS

                                  WHAT IS VIRUS ?                                                  A Virus is a program created by programmers which is used to infect the Operating System. After the virus code is written, it is buried within an existing program and once that program is loaded into the computer, the virus replicates by attaching copies of itself to other programs in the system. Viruses  are merely found in the network environment.       Virus is just like that illness for a computer.Think that what happen when you are ill, that your body functions are not working properly.As same Computer Virus is also do the same things with it. The term 'computer virus' was first formally defined by Fred Cohen in 1983. They are always indu...
Post a Comment
Read more