একটি মোবাইল ফোনের পরিচয়

Computer life Computer is a machine which has our life simulator and easier. It is latest invention of modern science and the modern age. Now it's widely used in every of our life, government, non government offices, colleges, Universities, Banks etc. Computer hardware devices include input devices, output devices and CPU. Input devices are those which are used for taking input from the user. Some input devices are keyboard, mouse etc. Again output devices are those a computer processes it's data and makes an output. Some other hardware devices are floopy disk, harddisk, etc. A set of instructions, which are used to run a computer, are known as software. There are two types of software-system and application software. Some software's are Windows 98, Widows XP, Office 2000, Photoshop etc. Computer has made our life. Directly or indirectly each and every person is connected with a personal computer. Computer is used in a student's day needs. A student can gather his infor...