1. What is a Monitor ?
A Computer monitor looks like a television. The monitor shows whatever you type or draw on a computer. You can also see movies on it. The monitor is another term for the display screen. The monitor displays text, images, graphics, videos etc. There are mainly two types of monitors. CRT monitors and LCD monitors.
2. What is a CPU ?
CPU stands for Central Processing Unit. The CPU is the most important part of the computer. It is the brain of the computer. CPU is also referred to as Processor in large or microprocessor in small computers. The CPU can do arithmetic and logical operations. It stores information. The CPU makes all the parts of a computer work.
3. What is a Keyboard ?
A Keyboard has many buttons. These are called keys. The keys are used to type numbers and words. You can see the effects on the monitor whenever you type on the keyboard. Computer keyboards but contain additional keys. The keyboard is the oldest and most familiar of all the input devices.
4. What is a Mouse ?
The mouse of a computer looks like a real mouse. The wire it attached to it looks like the tail of a mouse. The mouse of a computer usually has two buttons and a wheel in the centre. The mouse is always kept on a mouse pad. The mouse is a pointing device. It helps us to move the pointer from one place to another on the monitor. It also helps us to draw pictures.
5. What is a Printer ?
A Printer is used for printing information on paper. If you write or draw something on a computer, you can print it with the help of a printer. These are called printouts. The printers are commonly used output devices. They provide information in a permanent readable form.
6. What is a Speaker ?
Speakers help us to listen music which is played on a computer. You can even hear the voices while watching movies on a computer. A personal computer can also be converted to a Television with a special card. In this application also speakers are necessary to hear the voice output.
7. What do you mean by UPS ?
UPS is normally used with a computer. UPS stands for Uninterruptible Power Supply. A UPS keeps the computer working for some time after a power cut. UPS is an electrical device that provides emergency power to a load when the input power source, mains power fails.
Practice in Related Chapters
|Machine and Computers|
|Know Your Computer|
|Natural and Artificial Things|
|Introduction to Computers|
|Operating the Computer|
|Advantages of a Computer|
|Parts of a Computer|
|Flow of Operations in a Computer|
|Mouse Practice with Paint Tools|
|Input and Output Units|
|Keys and Keyboard|
|Starting and Shutting Down a Computer|