A 6 yr old boy was in the market with his 4 yr old sister. Suddenly the boy found that his sister was lagging behind. He stopped and looked back. His sister was standing in front of a toy shop and was watching something with great interest. The boy went back to her and asked, “Do you want something?” The sister pointed at the doll. The boy held her hand and like a responsible elder brother, gave that doll to her. The sister was very very happy… The shopkeeper was watching everything and getting amused to see the matur behaviour of the boy… Now the boy came to the counter and asked the shopkeeper, “What is the cost of this Doll, Sir? !” The shopkeeper was a cool man and had experienced the odds of life. So he asked the boy with a lot of love & affection, “Well, What can you pay? The boy took out all the shells that he had collected from sea shore from his pocket and gave them to the shopkeeper. The shopkeeper took the shells and started counting as ...
Computer is an amazing electronic item which is capable of holding large amount of information which can be retrieved at any point of time. Computer has Three main parts. 1. ALU or Arithmetic Logic Unit 2. Memory 3. Control unit 1. ALU or Arithmetic logic unit performs the mathematical addition, subtraction, multiplication, division inside the computer. 2. Memory unit stores the instructions/data in the computer. 3. The work of the control unit is to direct the flow of data or instructions for the execution by the processor of a computer. It controls, manages and co-ordinates memory, ALU, registers, input, and output units. It fetches the instructions and generates control signals for the execution. APPLICATIONS OF COMPUTER A) Computer is very very versatile i.e it can be used in various applications of life that is Railway Reservation, Airline Reservation, Space Technology, In offices for Accounts related work, in Banks, in educational institutions for teaching purpos...