Author: mamun
In this century science has raised human civilization up to the highest peak. Machine has brought for mankind such comforts as a man can never dream of even in a fairy land. This machine has enabled mankind to cross thousands of miles within an hour. A man can see the events of the countries of thousands of miles away sitting in his room through the glass-screen of the TV. He can control heat and cold of the atmosphere through air-condition machine. It is not a miracle that machine which has come to help human brain is the computer.Computer has got its special language. The question is arranged through certain signals and sent to the machine. This signaling is called a program. The question will be sent to the receiver machine which will send it to the preservation machine. In the preservation machine thousands of words and numbers are arranged. They are its memory or brain.
The central machine will carry out the order of the preservation machine and will find the solution. The result will come out of the exit machine.Processing takes place in the PC`s central processing unit(CPU). The system`s memory also plays a crucial role in processing data. Both the CPU and memory are attached to the system`s motherboard, which connects all the computers devices together, enabling them to communicate. The two main parts of a CPU are the control unit and the arithmetic logic unit(ALU).
The control unit stores the CPU`s microcode, which contains the instructions for all the tasks the CPU can perform. The control unit directs the flow of data through the CPU, and to and from other devices. The ALU is connected to a set of resisters-small memory areas in the CPU, which hold data and program instructions while they are being processed.Computer now helps man in innumerable ways. It can successfully translate poems or any parts of literature. A computer has been translating the important news of the newspaper. In America computers are used in big agricultural farms. The farmer sits in his home, puts on the switches and the machine plough, manure the land, sow seeds, reap corns and thrash them through computer. The machine which helps human beings to conquer the space in the computer. Computer has brought about so much success in this field.
Finally we can say Computer is the greatest contribution of science today. It has curtailed human labor and saved its misuse.
0 comments:
Post a Comment