A computer Is a general purpose device that can be programmed to carry out a set of arithmetic or logical operations. There are many types of computers that we are using now Like personal computers (desktop), mobile computers and mobile devices, game consoles, servers, mainframes, supercomputers, and embedded computers Since a sequence of operations can be readily changed, the computer can solve more than one kind of problem[21. Every day, people around the world rely on different kinds of computers for a variety of areas.
Computers can be used for educational repose, in the bank, for entertainment, in railway stations and airports, in office, in hospital, in defense, for designing, and another category. However, computers contain both advantages and disadvantages. Almost every home, office, or school has a computer of some kind these days. The use of computer technology in learning allows the teacher to individualized the learning Instructions as well as the technology grants the students the autonomy and making them to learn with their own . In addition to this storing information on a computer disks Is one of the most efficient ways of keeping data.
One computer disk can hold the same amount of Information as several books. Then, a computer with a CD-ROOM drive can provide access to materials stored on a CD-ROOM, including databases (containing descriptions of materials) and full-text (complete) materials. A computer linked to a modem can provide access to information available via e-mail and other Internet services, such as electronic newsletters and websites . Moreover people can communicate with other computer owners through the internet, which offers nowadays everything from making firewalls from foreign entries to doing shopping .
The use of computer has also created some problems In society which are as follows. First, different tasks are performed automatically by using computers, so It's the reason that reduces the need of people and Increases unemployment In society. Second, many people use computers without positive purpose. They play games and chat for a long period of time. It causes wastage of time and energy. Young generation is now spending more time on the social media websites like Faceable, Twitter etc or testing their friends all night through smartness which is bad for tooth studies and their health.
And it also has adverse effects on the social life. Next, the data stored on a computer can be accessed by unauthorized persons through networks. It has created serious problems for the data security. Then, people use the computer for negative activities. They hack the credit card numbers of the people and misuse them or they can steal important data from big organizations. Moreover, the computers are used to store personal data of the people, so the privacy of a person can be violated If the personal and confidential records are not protected ropey.
In addition, the Improper and prolonged use of computer can results In Injuries or disorders of hands, wrists, elbows, eyes, necks and back. The users can avoid health risks by using the computer in proper position. They must also take recommended to take a couple of minutes break after 30 minutes of computer usage. Finally, the computer manufacturing processes and computer waste are polluting the environment. The wasted parts of computer can release dangerous toxic materials. Green computer is a method to reduce the electricity consumed and environmental asset generated when using a computer.
It includes recycling and regulating manufacturing processes. The used computers must be donated or disposed off properly. There are many effects of excessive computer usage on people. Many people spend an excessive amount of time in front of the computer, so it means that they avoid doing meaningful activities such as sports and other social activities that can help them improve as a person as well as learning from working as a team. This causes severe loneliness followed by depression due to their lack of social interaction.
For teens and children, their grades will slip as they prefer to surf the net or play games over finishing their homework. This will cause stress for both the parents and the kids . Computers have impacted the way we live on a large scale. The positive impact is that people have access to a wealth of information on computers, without having to drive to the library for research, so wireless technology allows people to obtain information within minutes. Many online videos teach skills, such as learning a language. Then, Computers offer many opportunities to meet new people.
The Internet can help people find others with common interests, form bonds with strangers and expand their social network. On the other hand, The more time a person spends on a computer, the less likely the person is to participate in physical activities, which can result in weight gain. The more dependent users are on their computers, the more likely these setbacks will affect their stress level and overall health. Children who use the Internet also are at risk of learning about different type of drugs and how they alter sensations or how crimes are committed .