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Computer Appreciation

 

1.2  Characteristic of computers

 

Computers being data processing devices have the following characteristics:

 

Speed: Process millions of instructions in a fraction of a second. The speed of the computer is measured in Neno seconds.

 

Accuracy: Perform each and every computation with 100% accuracy.

 

Versatility: Computers can be used in many fields of operation, such as, Education, Engineering Medicine, and Defence etc.

 

Diligence: Can perform a task repetitively for N number of times, without any degradation in processing speed.

 

Storage: Can store huge amount of data within themselves in a limited area.

 

We store information our day-to-day lives in files, notebooks and diaries, this storage is the Manual Storage System. The same can also be done on a computer in a much more organized way. Here also the information is stored in the form of files, but on disks and tapes. This helps in easy and speedy retrieval of information. This storage is known as Electronic Storage System.

 

Advantages of Computers

 

  • Perform repetitive tasks.

  • More accurate while dealing with large numbers.

  • Work at constant efficiency.

  • Are used in almost every field.

  • Process millions of instructions in a fraction of a second.

  • Effective and efficient data storage and retrieval.

After having looked at the characteristics of a computer, the advantages of using it become very obvious. These are:

Look what you can get

Look

what you can get

  • The speed at which the computer carries out its operations.

  • Itís versatility, i.e. can be used in different fields.

  • Enables an individual or an organization to store and retrieve information as and when required.

 Limitations of Computers

 

  • Dependent upon human beings

  • Have no imagination and intuition of their own

  • Tasks have to de described in detail

  • Cannot detect flaw or error in logic

The Computer, being an electronic device, has certain limitations, which can be summarized as follows:

 

  • Unlike the human brain, a computer cannot think on its own, but has to be given very explicit, step-by-step, instructions to make it perform a task.

  • It lacks creativity and imagination. It does not have intuition and cannot draw conclusion without going through all the intermediate steps.

  • Computers do not learn from experience.