Computer is used everywhere in our personal and professional lives. Following are the examples of computer uses in different fields:
Business:
In past paper system was used to handle and keep record of business. But today whole business is managed by computer. Record of all products and workers is saved in computer which can be accessed and managed easily. It helps in increasing product rate at lower price.
Banks:
Use of computer in the field of banking saves time and provides many facilities to the customers. Deposit and withdraw of money have become very easy. We can withdraw our many anywhere from ATM (Automated Teller Machine). Because of Electronic Banking we can check our account status and transfer money anywhere in the world sitting at home.
Marketing:
Computer is also used in marketing for providing product’s information, its advertisement, promotion and management. Managing and analyzing data on computers enables us to increase our business and better communicate with our customers.
Departmental Stores:
Computer is widely used in departmental stores for keeping record of all products. Bar code reader, a photoelectric scanner is used to convert the bar code price symbols on products into digital forms. Security cameras are used to monitor the customer activities.
Medical:
In the field of medical, computer is used in patient monitoring and diagnoses of many diseases. Sensors connected with computer, helps in monitoring pulse rate, blood pressure, heart rate and many other activities of patients. Computer database system is used to keep record of patients and medicines.
Airline System:
Computer has become an important need of airline system. Online ticket booking service is available for customers. Computer is used in airline system from managing and manufacturing aircrafts. Flights are planned and managed through computers.
Stock exchange:
Stock markets are found all over the world. Use of paper is ending on mostly trading platforms. Traders do all their trading electronically. They connect, communicate and manage all dealings to one another with the help of computer.
Online Shopping:
In the busy schedule of today’s life online shopping enables the customers to do online shopping at home by providing the access to wide range of products.
Education:
Computer plays an important role in field of education. Computers labs are available in every educational institute. Many online teaching and training programs gives everyone access to the education. Computer is also used for online examination and marking.
Office Handling:
 MS Office and many other programs in computer help in better and easy office handling. Transferring of documents and messages has become easy because of fax and E-Mail.
Industry:
Computers are used in industry for various purposes. Robots can perform many repetitive, boring, difficult and dangerous tasks without any tiredness and more accurately than humans.
Video Conferencing:
Video conferencing allows a meeting through computer by providing normal meeting environment. It enables all meeting members to see, hear and interact with one another as they are in the same room. It saves time and cost.
Weather Forecasting:
In weather forecasting, we need very high and accurate calculations of data from weather stations, satellites and many other places. Computer is used in weather forecasting as it can perform very high and correct calculations in very small time.
Simulations:
Some situations are very difficult and dangerous to practice for real. Computer simulations help and train people in dealing such situations. These enable users to measure and know that how functioning of whole system may be affected by changing individual components within system.
Home:
Nowadays computer is almost in every home. People can use it for saving important records and making budgets. It is also used to play games, play music, watching movies and accessing all types of information through the internet.
Government:
Computer is used in all government departments for managing large amount of data. It can also store record of employer salaries and personal information.  Use of computer in different departments enables all type of written communication and transfer of data can easy through E-mail and other services.
Agriculture:
Computer can help in agriculture in many ways. It can be used for keeping record of budget information, investments on farms and accessing new ways of farming that can increase product.
Science:
Computer was first used by scientists. It revolutionized the world of science by performing series of calculations in minutes and seconds.  It enables the scientists to analyze and manipulate their searches and data.
Communication:
Computer provides many communication platforms through internet. Facebook, Instagram and twitter keep us connected to our love ones and enable us to access and share information all over the world. Gmail, Yahoo and Outlook provide services for formal and official communication.
Sports:
Computer can be used in sports for monitoring many games and helping in tough decisions. Players can use it to learn about workouts and different methods to keep them fit. It can also be used to keeping track of team performance.