Introduction to Computer

1. What is a computer ?

  • A computer is a device that accepts information (in the form of digitalized data) and manipulates it for some result based on a program or sequence of instructions on how the data is to be processed.
  •  A computer is an electronic device that manipulates information, or data. It has the ability to store, retrieve, and process data.
  • You can use a computer to type documents, send email, and browse the Web. You can also use it to handle spreadsheets, accounting, database management, presentations, games, and more.

2. Why to use a computer ?

  • work faster and more precise
  •  use one piece of information again in different documents
  •  make calculations without mistakes and correct your English spelling
  •  present your work better and more professional
  •  make as many copies and different versions of documents as you like
  •  store and keep track of your (electronic) documents
  •  send (electronic) mail and documents to distant relatives and business relations within a matter of minutes
  • find information you need, available on one of the millions of computers that are worldwide connected to the internet

3. Basic parts of computer

The basic parts of a computer are the computer case, monitor, keyboard, mouse, and power cord. Each part plays an important role whenever you use a computer.

Computer case

The computer case is the metal and plastic box that contains the main components of the computer. It houses the motherboard, central processing unit (CPU), power supply, and more.

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Introduction to Software

  • Software is a component of a computer that has no physical presence.
  • The different categories of software are:

        1. Application Software: are designed to allow the user of the system complete a specific task or set of tasks. Example: games, word editors, image editors, web browsers etc.
        2. System Software:  is the software used to manage and control the hardware components and which allow interaction between the hardware and the other types of software.  Example:
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Introduction to Programming Language

Concept of Programming Language:

The programming languages are used to communicate with the computer system through the instructions and commands in order to solve the problems.

Introduction to Programming Language:

Programming languages are the medium of expressing in the art of computer programming.

An ideal programming language will make it easy for programmers to write programs clearly. A good programming language will help programmers to interact among software components effectively. read more

Programming Basics

1. Who is a software developer or a programmer?

A programmer, or software developer, is a person with the training and skills necessary to design, create, and test computer programs.

2. What is a program?

A program is a set of instructions that a computer follows to perform a task.

3. What is an algorithm?

An algorithm is a finite sequence of step by step, discrete, unambiguous instructions for solving a particular problem.

4. What is an Pseudocode?

Pseudocode is an English-like representation read more