Sunday, November 17, 2013

Short Paragraph On Computer

Question:

  1. What is computer?
  2. Who invented it?
  3. What are are its main components?
  4. What are its main functions?
  5. What changes has it brought in our life?
Answer: computer is one the most wonderful inventions of modern science. It is fairly a recent invention. It has now become a part and parcel of day-to-day life. Computer was invented by an English mathematician called Charles Babbage. Computers are of two basic types: analog and digital. Analog: computers deal with physical qualities and digital computers deal with numbers. Computers have five major components; input, store, control, processing and output. They mainly perform the functions of addition, subtraction, multiplication, division and comparison. Every computer has a language of its own. It is called programming language. Computer has brought about a revolutionary change in our life. It can solve the complex mathematical problems quickly and accurately. This is why, many people call “the computer an electronic brain”.

Or,


Computer

Question:
  1. What is computer? 
  2. How does it work? 
  3. What do you know about the invention of computer?
  4. What are the components of a computer? 
  5. What functions does a computer perform? 
  6. What do you know about machine language?
  7. How does computer help man? 
Answer: Computer is an ultra-modern electronic device for storing and analyzing information fed into it. It has no rapacity to do anything by itself. It works on the basis of commands given by the operator. The invention of computer has a long history. Computer was not invented overnight. It took long time and hard labor to invent computer. A computer consists of five major components. They are the input unit, the output unit, the memory unit, the control unit and the arithmetic unit. The main parts of the computer are central processing Unit, Monitor and the keyboard. Monitor works like a TV screen the part called mouse may surprise Anwar but it is not a real mouse. It is called so because of its appearance. One can do different things by clicking on the icons with the mouse. A computer performs three functions. Firstly, it receives data. Secondly, it processes data by various computations and the third is that it emits data. Every computer has a machine language of its own and accordingly it works. Machine language is not fixed. It varies from machine to machine. Computer is of great use to us. It renders great service to mankind. It is like Aladdin’s magic lamp. It has lessened our work loads. saved time and energy and made our life easy and comfortable. We cannot go a single moment without computers. It is part and parcel of our daily life.