The computer is considered the greatest invention of modern science. It was not invented overnight. It is the outcome of many consecutive inventions by a number of scientists. First of all, Pascal invented the theory of ‘Digital Calculating System’ in 1642. He initiated the research towards the invention of the computer. Charles Babbage’s research and the “Difference Engine” was a big step forward. At last, an American scientist named
Howard Akin invented the machine in 1937 that could do complex calculations. So, Howard Akin is considered the inventor of the computer. After seven years in 19-44, the electric computer was used at Harvard University. Then after many inventions and developments in the fields of the microprocessor, silicon chip, computer language, operating system, storage device etc. and many generations of computers, the computers have reached their present state.
Question: You know that the computer is a great invention of modern science. Now, write a paragraph about ‘Computer’ answering the following questions.
- What is a computer?
- What are the major parts of it?
- What is the computer capable of doing?
- What are the demerits of the computer?
- In which sectors computers are used?
Ours is an age of science. Science has invented many things. The computer is one of them. It has become an essential part of modern life. A computer consists of five major parts. These are the input unit, the output unit, the memory unit, the control unit, and the arithmetic unit. A computer is capable of doing extremely complicated work in all branches of learning. In a few minutes, a computer can perform calculations that trained mathematicians would need years to complete. Nowadays computer is used in all spheres of our life. It is used in education, medical science, agriculture, commerce, printing and industrial sector etc. It has lessened our work and made our life easy and comfortable. In spite of having a lot of merits, it has some demerits too. It weakens the eyesight of the operators. Sometimes it may give wrong results if there is any defect in the programming. Then it may bring about the untold disaster. However, Computer has brought about the revolutionary change in our life. We can not do a single moment without it. It is a part and parcel of our daily life
Topics: Introduction, Its invention, Types of Computers, Structure of a Computer, Function, Uses,
The computer is the latest & the most excellent miracle of modern science. We now live in a computer age; the computer has become our friend, philosopher, and guide. The word computer is derived from the verb ‘Compute’ meaning to reckon or calculate something.
In -1643 B. Pascal, a French mathematician invented the mechanical calculating machine. In 1812 Charles Barrage invented the improved model of the mechanical computer. The first electromechanical computer was made jointly by Harvard University & IBM Company in 1946. Since 1971 major improvements in computer technology have led to the development of modern-day computers.
Computers are classified according to the size, speed & the internal structure such as the supercomputer, mainframe computer & microcomputer. PC (personal computers) are the most popularly used computers in the world.
The main aspects of a computer are hardware & software. Hardware is the machine itself consisting of RAM, central processing unit (CPU) and hard disk. The software is the program-es which help the hardware to function according to users demand. The most commonly used software is DOS and Microsoft Windows. A PC comprises keyboard, system unit and monitor.
Scientifically computer is an electronic device that receives data which are fed into it, stores the data inside of it and processes the data according to instructions.
The computer can receive numerous data & instructions and perform millions of calculation within seconds. It is capable of manipulating the input data and make a conclusion according to instructions. Computers are widely used in medical diagnosis & treatment, Banks, Govt. & private offices, NGO’s, business houses, publishing, etc. Computers are also used in remitting messages through e-mail.
The computer has come to our country with immense possibilities. Presently people are becoming quite dependent on the computer for their day-to-day work, for word processing, data analysis, preparation of spread-sheets, inter-office mail and international communication. So, the conscious and learned people should take up the steps to familiarize the uses of the computer to the general people at large. Consequently, the countrymen will be benefited.
Essay on Computer and It’s Uses
Introduction: The computer is a wonder of modern science. It is an electronic device that can store and recall information very speedily and
efficiently. Its invention has fascinated everybody and all of us have become much inclined towards using computers. We can see their influence in every walk of our lives.
History: Computer was not invented overnight . It is the outcome of many consecutive inventions by a number of scientists. First of all, Pascal invented the theory of ‘Digital Calculating System’ in 1642. He initiated the research towards the invention of the computer. Charles Babbage’s research and the “Difference Engine” was a big step forward. At last, an American scientist named Howard Akin invented the machine in 1937 that could do complex calculations. So, Howard Akin is considered the inventor of the computer. After seven years in 1944, the electric computer was used at Harvard University. Then after many inventions and developments in the fields of a microprocessor, silicon chip, computer language, operating system, storage device etc. and many generations of
computers, the computers have reached their present state.
Uses: The uses of the computer are many. Nowadays computers are being used in almost every field for performing different types of _of jobs. The use of the computer is no longer confined to making speedy and complicated calculations only. Nowadays, almost all the industrial productions are computerized. The use and development of computer technology have enabled man to achieve tremendous success in different fields. Fields like the production of nuclear energy, space research, space shuttle, submarine engine, missile technology, satellite technology, anti-missile technology, aviation etc. have become solely dependent on computers. Computer technology has also brought about a revolution in the field of communication as it has given rise to the spread of the Internet. Nowadays millions of people use the Internet and communicate with each other. The Internet has also
ensured the free flow of information as censorship or control over the internet has not been successful yet. The computer is also a great source of entertainment. It can serve all kinds of our entertainment needs. It can play audio and video files and do audio
and video editing. People can save their favourite audio or video programmes on the computer. Nowadays computers can be found in many households being used as a medium of entertainment. A computer has also caused the dramatic change in the fields of designing and printing. In short, it is difficult to find a field where a computer has not brought any good influence.
Conclusion: Computer technology has opened the door to endless possibilities. It can be assumed that things done manually will be automated or computerized in the near future.
Importance of Computer Essay
Introduction : Science has discovered many wonders and computer is one of them, lt is an ultra modern electronic device for storing and analysing information fed into it. It has no capacity to do anything by itself. It works on the basis of commands given by
ow invented: Computer was not invented overnight. It took a long time and hard labour to invent the computer. Many votaries of science worked hard. This computer has become the result of the hard labour of many votaries of science. First of all, Pascal invented the theory of “Digital Calculating System, in 1642. Though his attempts were not crowned with success, he initiated the research which paved the way for the innovation of computer. Finally lliiward Akin, an American scientist, invented the such as the machine in l337 as could solve difficult arithmetical problems. So the credit for LHC invention of the modern computer goes to Haward Akin. After seven years electric computer was used in Harvard University in 1044. After that many other computers have been invented such.is EDACS. in 1945 and ENTICE in 1946 etc.
More components of a computer: A computer consists of live major components. They are the input unit, the memory unit, the control unit and the arithmetic unit.
Functions of a computer: A computer performs three functions. receiving data, processing data by various computations and emitting data.
Machine language: Every computer has a machine language of its own according to it functions. Machine language is not fixed. lt varies from machine to machine. Programmes written in machine languages are machine dependent and they are only good for that particular machine.
Importance of computer: Computers of a great use to us today. It renders a great service to mankind like Aladin’s magic lamp. It has lessened our workloads and made our life easy and comfortable. lt is used in our daily life for various purposes.
In the field of education: Computer is media of education in the developed countries. The students of the developed countries use the computer to prepare their study materials. They learn many things within the shortest possible time. Results of various examinations are prepared accurately with the help of computer within the shortest span of time.
In Medical Science: Nowadays in developed countries computer is used to diagnose diseases. A newer process of operation has been invented by the computer as an alternative to surgery. it is used to grind stones in normal pathological tests.
In Agriculture: Today computer is used in the fields of agriculture in the developed countries. A farmer of America simply it’s on the switch of the computer and gets everything done.
In Commerce: Nowadays business, commerce and trade cannot be thought of without a computer. It does wonder. It is used to prepare documents, to make lists of goods, store information and to prepare budget etc. Management personnel uses the computer
to take a decision. The value. of currency and price of any share can be known or counted instantly by the computer.
In Printing: Today printing cannot be thought without the computer. lt is an indispensable part of printing. Thousands of books are composed with the help of computer within a very short time.
In the Industrial sector: ln the developed countries computer is used to control mills, factories and industries. Trains and planes arerun by the computer.
Source of Income: Computer is a source of great income. Many developed and advanced countries export software and hardware and earn a lot.
Demerits: Everything has its dark sides. The computer has its own demerits. it causes diseases like repetitive stress injury and harms the eyesight of the operators.
The computer in Bangladesh: Many government and non-government offices, educational institutions are using computers. A course on the computer has been introduced in secondary and higher secondary levels. The day is not far to come when the computer will be
used in every sphere of life.
Conclusion: Computer. is of great use to us. We cannot do a single moment without computers. Now it is a part and parcel in our day to day, life.
Computer Composition For Students
Topics: Introduction, History, Major components and functions, Merits, Demerits, Conclusion
We live in an age of science. Science has invented many things. The computer is one of them. It has now become an essential part of modern life. We cannot do a single day without the computer.
There is a long history of the invention for the computer. First of all, Pascal invented the theory of ‘Digital Calculating System’ in 1642 which paved the way for the invention of the computer. Charles Babbage, an English mathematician invented the structure of the computer in 1833. Finally, Mr Haward Akin, an American scientist invented such the machine in 1937 that could difficult sums. Following this invention, Harvard University and IBM company combinedly invented the modem electronic computer in 1944. Alter this, it had
been being developed day by day.
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. A computer performs three functions, such as receiving data, processing data and emitting data.
The computer has brought about a revolutionary change in our life. It has lessened our work and made our life easy and comfortable. Nowadays, it is being used in all spheres of our life like education, medical science, commerce, agriculture, printing and industrial sector etc.
In spite of having a lot of merits, the computer has some demerits too. It may be attacked by the virus. Then it gives the wrong result. Sometimes, we lose important information. On the other hand, many young are addicted to computer games. Besides, we are becoming more dependent on computer day by day. Thus, we become lazy and inactive.
The computer has changed our lives. It has brought about the revolutionary change in every sector of our life. We cannot think of our modern life without the computer. Now it has become a part and parcel of our modern life.