Monday, October 25, 2010

Components of computers (2)

SYSTEM Software: This is a programm that controls the entire Computer system. It can also be reffered to as an 'Operating System'.

The system software is a major factor that determines the performance of a computer. For example, the human brain have to be developed to some certain extent before it can control the whole body part properly i.e the more advanced your system software, the more advanced your computer becomes. On the other hand, the system software controls the performance and well being of the entire Computer system.

The System Software can briefly be described as 'point of communication' between the Computer system and its Operator.

Have you wondered why you click on the eject option on your computer with your mouse and your Disk drive responds? That is the job of a system software.

The system software also creates a platform for Application software to operate.
Mac Os, Win 98,Win 2000, Win ME, Win Xp, Win Vista est. Are Examples of System Software.

APPLICATION Software: This is any Computer Programm written to applied in carrying out a particular task such as; word processing, audio converting, video editing, disk copying, Calculating est.

Examples of an Application Software are ; Microsoft word (for Word processing), Corel Draw(for graphic designing), Ulead video studio(for video editing), Moxilla firefox(Applied in Internet surfing), est.

Friday, October 22, 2010

Component of computers.

A computer is basically made up of two components. These are the HARDWARE & SOFTWARE.

HARDWARE: These are the physical parts of the computer; the System unit, the peripherals (devices that are connected to the system unit. e.g mouse, keyboard,V.D.U, Speakers, . . .)and other parts that can be seen.
They are classified into 4 i.e
  1.  INPUT devices
  2.  PROCESSING devices
  3.  OUTPUT devices
  4.  STORAGE devices

1.INPUT devices: These are used to send data (with specific formats e.g the microphone sends data in audio formats(wav,mp3,aac . . .) and the keyboard key in data in form of texts(a,b . . ,1,2 . . , %,@. . .) to the processing device.

2.PROCESSING devices: These devices are properly reffered to as PROCESSORS. This processors are responsible for the processing of Data into Information. I'm sure you are beginning to imagine how important they are.

3.OUTPUT devices: These devices are responsible for the delivering of Information (Processed Data)
From the processor to when they are needed.
4.STORAGE devices:These are used to store data and Information for future use. We have a collosal variety of storage devices which we will deal with as time goes on.

Monday, October 18, 2010

Computer Software

Software (though not really soft as we cannot even touch them) are (coded) instruction(s) needed by computers to perform a particular task successfully. Softwares can be compared to Lectures and Education acquired by Humans to be able to tackle certain problems for example; you need to be taught how to solve Algebra before you can now solve any Algebraic problem. your teacher/Lecturer impacts the instructions (software) needed for you to solve Algebraic problems. A computer versatility is only limited to the varieties of (application) software it has. (Note: A Software which can technically be described as a "COMPUTER PROGRAM" must be written in Language,that particular Computer Understands. for example, it is of no use taking Lectures with a language you do not understand, of course it would be absolute nonsense!
Computer Programming Languages will explained in details later on.)
Basically we have 2 types of software.

1.SYSTEM Sofware

Saturday, October 9, 2010

What are Computers?

Computers are electronic devices that are capable of accepting data, processing data and therefore producing and storing expected output in expected formats.
From this definition you can understand that this stuffs can make our life easier!

All computers must ; able to accept instructions via computer programs (software) because this make them versatile.
2. possess good storage capacity to store unprocessed data, instructions and processed data(information).
3. be able to execute tasks quickly.
4. have an interactive interface between its operator and itself.

Wednesday, October 6, 2010

What is Computer Engineering?

    Computer Engineering can be regarded as Computer "TROUBLE-SHOOTING".
because it involves mostly, the Diagnosis and Maintenance of Computer Systems.