1. What is computer ?
Ans. Computer is an electronic device, which works only on the instruction given by the user. It works at very high speed and great accuracy. It stores use data for future reference or use.
2. How many parts of computer are there ?
Ans. There are five parts of computer which are as follows ;
Keyboard
Mouse
System unit
Monitor
UPS
3. How many types of monitor are there ?
Ans. There are three types of monitor;
CRT (Cathode Ray Tube)
LCD (Liquid Crystal Display)
LED (Light Emission Diode)
4. How many types of keyboard are there?
Ans.There are two types of keyboard:
1.Normal or basic keyboard
2. Multimedia keyboard
5. How many types of mouse are there?
Ans. There are two types of mouse;
Trackball mouse
Optical mouse
6.What is UPS?
Ans. UPS stands for uninterrupted power supply.
Its gives the power backup of 15 – 20 minutes to the user if the power goes off.
User can properly complete their task and also we can shut down the system.
7.What is wallpaper ?
Ans. It is a pictorial or graphical representation on the computer screen.
It appears when the user turn on the computer system.
It make change at regular interval of time set by the user.
8. What is screen saver ?
Ans. It is also a pictorial or graphical representation on the computer screen. It may text presentation. It appears on the computer screen when the computer is in idle mode.
It appears according to the time given by the user .
9. What is icon ?
Ans. It is present on a desktop. It is a small pictorial presentation on a computer screen. It is a shortcut way to enter into any application.
10. Name some by default icons present in Windows computer?
Ans. The five by default icons in Windows are as follows:
Computer
Documents
Internet Explorer
Network Places
Recycle Bin
11. What is notification bar ?
Ans. It is present at the below of the computer screen.
It is present inside the task bar which contains anti-virus and the application
the user is currently using, and Windows massage, Speaker Control etc
12. What is Task bar ?
Ans. It is present at the below of the computer screen in any applications of the computer system.
This bar contains different icons, Start menu, Notification bar, Date, Time and Calendar.
