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Essay No 1 (985 Words)
Today’s generation could never ever imagine in their wildest dreams about the world, ages before, when there were no computers or any other technologies. So much we have advanced that now every information is just a click away and is in your hands 24/7. All this advancement was possible only with the introduction of a small device called the “Computer”.
A simple explanation of the computer. Normally, a computer consists of a processing unit called the Central Processing Unit or the CPU and a form of memory. In the years between 1940 and 1945 were the first electronic digital computers developed. The initial sizes were as big as a room and consumed power as much as today’s personal computers.
Initially, computer was related to a person who carries out calculations or computations and as such the word computer was evolved in 1613 and continued till the end of 19th century. Later it as re-described as a machine that carries computations.
The early computers were limited in their functions. It was the fusion of automatic calculation and programmability that produced the first computers that were recognized in 1837. Charles Babbage in 1837 was the first to introduce and design a fully programmed mechanical computer, his analytical engine. Due to limited finances and inability of resisting tinkering with the design, he could not complete his work and it was later completed by his son Henry Babbage who made it into a simplified version of the analytical engine’s computing unit.
The original objective of inventing a computer was to create a fast calculating machine. During the World War II, it became very essential to understand and locate the direction and speed of the enemy weapons. Calculations had to be done accurately and mathematically and without an advanced machine it would not be possible. To defend the enemy , the front line soldiers required firing tables and only a computer could produce such firing tables with speed and accuracy at that time.
To produce the technology then, high sums of money and brain power was required. The first computer was produced by the Moore School of Engineering called the ENIAC, on behalf of the US Army which was in 1946. The ENIAC was able to produce the firing tables, by carrying out large number of calculations accurately.
Over a period of time computers have evolved and toady with the Artificial Intelligence technology, we use the most advanced kind of computers that have helped man in every sectors of life. At every generations of the computers or in fact during the evolution, each time computers are being launched that are lighter, smaller, speedier and more powerful. The computers have been a dominating factor since the 1970`s and today it has conquered almost all walks of life.
Computers are being used for various purposes today like weather forecasting, machinery operations, guidance of spacecraft and technology. Apart from these in the medical sector, it provides a great helping hand in storing information that could be referred later, in space technology, automation in banks, ticket booking through the net, traffic control, and even games could be played in computers on and many more. All these are possible only because of the characteristics that a computer posses like speedy, accuracy, reliability and integrity. It could executive over a billion instructions per second without committing any mistakes is completely reliable. The memory of the computer is so vast that it could hold in a large amount of data.
To run a computer, it is the programming that decides and it should be run in a computer. Programming is defined as a set of instructions allotted to the computer that accepts it in order to solve a problem. There are many different languages that are being used to program a computer. Some of the languages are BASIC, COBOL, C, C++, JAVA are a few to name.
With the introduction of computers, attaining information has become a lot more easier. Computers have become the backbone of Information Technology and a major application in this sector is the Internet. With the Internet, nothing is impossible today. Apart from acquiring information, one could stay connected to friends and family, a great platform for business expansions, purchasing, studying and the list just goes on, it is endless.
Computerization in almost all sectors, have created job opening for thousands. Computer education has been introduced at school levels and in primary classes, as such is the importance of acquiring the knowledge of computers. Every year there are thousands of students step out from universities and colleges across the globe into the world of computer technology and this youth is what is tomorrow’s assets in getting technology into the next level of advancement.
The computer has proved in all roles that it has been assigned. A great helping hand, in every sector that has been applied with computers. Telecommunication and satellite imagery are also computer based, which is added to the long list of applications computer holds in other fields.
With every positive, there is a negative and the same is applicable with computers also. With all the positives that one could acquire and seize, the negative side is also large. The increase in Cyber crime, pornographic websites, false identity leading to trapping of youngsters and many more. Yet , the advantages are more outnumbered and there are many preventive measures also introduced to stop the negative aspects.
The world would not have been what it is today, had there not been an entry to this great machine even though in the crude form, ages before us. Computer has a great future and we just have to keep a watch and mark the changes coming to it.
Essay No 2 (105 Words)
Essay No 3 (202 Words)
A computer is a general-purpose device that can be programmed to carry out a set of arithmetic or logical operations automatically. Since a sequence of operations can be readily changed, the computer can solve more than one kind of problem.
Conventionally, a computer consists of at least one processing element, typically a central processing unit (CPU), and some form of memory. The processing element carries out arithmetic and logic operations, and a sequencing and control unit can change the order of operations in response to stored information. Peripheral devices allow information to be retrieved from an external source, and the result of operations saved and retrieved.
The first known use of the word "computer" was in 1613 in a book called The Yong Mans Gleanings by English writer Richard Braithwait: "I haue read the truest computer of Times, and the best Arithmetician that euer breathed, and he reduceth thy dayes into a short number." It referred to a person who carried out calculations, or computations. The word continued with the same meaning until the middle of the 20th century. From the end of the 19th century the word began to take on its more familiar meaning, a machine that carries out computations.
Essay No 4 (215 Words)
Computer is the latest technology which is used almost everywhere. It has made possible to do large amount of works in very small time. It has reduced the man effort in the offices means it gives high level of work output in very small time, less effort, low man power, etc. Now a day, it has become hard to imagine our lives without computer. We can use internet in the computer which gives us lots of required information on any subject in very less time. There are great contributions of the computer in the lives of human being. It is playing big role in every field and helping us every single moment. Old generations of the computer were less effective with less functions but new generations of it are amazing with high capacity, easy to handle and more functions.
Future generations of the computer would be more effective and lots of functioning. It has made our life easier. Using this we can easily learn anything and enhance our skill. We can get any information about any service or product or other thing within no time. We can buy anything online using computer and internet and get free delivery. It is very useful for the preparation of project work of any student reading in any class.
Essay No 5 (259 Words)
Computer is the wonderful and mastermind gift of the science to the whole human fraternity. It can be used to do any kind of works. It is very easy to handle by anyone and takes very less time to learn. Because of its easiness and high work efficiency, it is being used in many fields like offices, banks, hotels, educational institutions, shops, hospitals, commercial places, schools, colleges, training institutes, military establishments, military, industries, etc. Many people buy laptop or desktop for their kids to learn about required things in their schools or playing computerized video-games, etc.
Computer is a big dictionary and large storage device which we use to save any type of large amount of data like information, study materials, projects, photos, images, video, audio, songs, clips, games, and many more. It is an electronic machine which is able to calculate and solve big problems. It helps in enhancing our skill level and get information easily. It is very simple data based machine. It provides facility of many other tools like paint tool, text tool, etc which are very beneficial for the kids, children and students to use it more effectively.
We can use it for any big or small mathematical calculations very accurately. It is used to forecast the information about weather, in printing books, news papers, diagnosing diseases, etc. It is used to make online railway reservations, ticket booking, hotel or restaurant booking from any place all over the world. It is used by MNC companies for the accounting purpose, invoicing, pay rolls, stock control, etc.
Essay No 6 (311 Words)
In the modern world of technological advancement, computer is the amazing gift given by the science to us. It has changed the living style and standard of the people. No one can imagine the life without computer as it has made lots of works so easy within less time. Computer is playing great role in the development of the developing countries. It is not only a storage or processing device but it is like an angel which can make anything possible. By many people it is used as the source of entertainment and communication.
The computer has proved in all roles that it has been assigned. A great helping hand, in every sector that has been applied with computers. Telecommunication and satellite imagery are also computer based, which is added to the long list of applications computer holds in other fields.
We can get connected to our friends, relatives, parents or others in no time through the use of video chat or email. Using internet in the computer we can search and retrieve vast information on any subject useful for our education or project work. It is very safe and easy for the business transactions purposes through banks to any accounts. By providing the facility of data storage it has lessen the paper works in the governmental and non-governmental offices or colleges. One can save lots of time and effort by online shopping, paying bill, etc by being at home through the computer.
Computer education has been made compulsory by the government of Pakistani in all the schools, colleges and other educational institutions for enhancing the skill level as well as the easiness of the students in their professional life. Learning computer has become very essential in all the modern-day jobs. In the higher education there are subjects like network administration, hardware maintenance, software installation, etc for the enhancement of skill.
Essay No 7 (410 Words)
Invention of the computer has made many dreams come true even we cannot imagine our lives without computer. Generally computer is a device used for many purposes like information storage, email, messaging, software programming, calculation, data processing and many more. Desktop computer need a CPU, an UPS, a keyboard and a mouse for well functioning however laptop does not need anything to add outside as it is included with all inside. Computer is an electronic device having big memory which can save any data value. We are living in the advanced world of computer in the 21st century.
Earlier the functioning of the old generation computer was very limited but new generation computers are amazing with lots of functioning. Charles Babbage had invented the first mechanical computer which was totally different from the modern day computer. The aim of computer invention was to create a machine which can perform very fast mathematical calculations. During the World War II it was used to locate and estimate the direction and speed of weapons of the enemies. Modern day computers are available with the artificial Intelligence technology to helps us in every sector of life.
New generation computer are being highly advanced means smaller, lighter, speedier and more powerful. Now a day, it is running in almost all walks of life like weather forecasting, guidance of spacecraft, examinations, education, shopping, traffic control, high level programming, automation in banks, railway ticket booking, playing games, medical sector, machinery operations, job opening, business, crime detection etc. It is the backbone of the Information Technology including with the internet and proved that nothing is impossible today. If there are positive effects of the computer on the life of human being, it also negatively affected the human lives such as rise in the Cyber crime, pornographic websites can be accessed by kids or younger and many more however using some preventive measures we can be safe from its negative effects.
The whole human fraternity is becoming highly dependent on the computer technology; no one can imagine life without computer. As, it has spread its wings so deeply in every area and made people used of it. It is very beneficial for the students of any class. They can use it to prepare their projects, learn poems, read different stories, download notes for exam preparations, collect large information within seconds, learn about painting, drawing, etc. It enhances the professional skills of the students and helps in getting job easily.
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