Monday, 8 July 2013

use of computer in education field

Computers are used in a variety of settings in educational field. They can be used by guidance counselors, administrators, web masters, library media specialists, students, teachers, clerical workers and food service employees for many different reasons. Computers lend an organizational hand to schools, and they also improve productivity in several areas. For these reasons, computer technology has become an essential part of the educational system. 
         Teachers use computers for a variety of reasons. They use computers to keep electronic grade books; maintain and update personal websites to share information with families; communicate with other teachers, parents and administrators and use software to create classroom newsletters. Teachers also use computers to access information, engage in video conferencing, research various topics and create and update lesson plans. Teachers use computers to design personalized web-based learning programs for students, and they also allow teachers to design assignment requirements and web quests for student use. Finally, teachers can use computer technology to generate and utilize electronic testing for their students.
         In school settings, students use computers to learn both with and from technology. Computers enable students to research a variety of subjects, create projects to demonstrate learning and sort and synthesize information. Students can also use computers to view assignment guidelines and requirements at home and communicate with teachers about assignments. Some students use computers to blog about what they've learned or communicate with other students around the world.

Sunday, 7 July 2013

computer

A computer is an electronic device that can be programmed to carry out a finite set of arithmetic or logical operations. Since a sequence of operations can be readily changed, the computer can solve more than one kind of problem.The first electronic digital computers were developed between 1940 and 1945. Originally they were the size of a large room, consuming as much power as several hundred modern personal computers .
            
         A computer is a programmable machine. The two principal characteristics of a computer are: it responds to a specific set of instructions in a well-defined manner and it can execute a prerecorded list of instructions (a program)modern computers are electronic and digital. The actual machinery -- wires, transistors, and circuits -- is called hardware; the instructions and data are called software.
           A complete, working computer. Computer systems will include the computer along with any software and peripheral devices that are necessary to make the computer function. Every computer system, for example, requires an operating system.