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27 Sep 2015

General Knowledge - Computer and IT

Do you know ?

1. When two users have simultaneous conversation via internet, it is called conferencing. When this process is supplemented by live video, it is called Video Conferencing.
2. Wireless is a means of communication that uses low powered radio waves to transmit data between devices. 
3. Computers, which are connected to the server are called workstations or nodes. 
4. LAN, MAN and WAN are the different types of networking.
5. A database is an organised collection of related information or data stored in files. 
6. A window that displays the database objects is called Database window.
7. A table name can have up to 64 characters, numbers and spaces. 
8. A table cannot have two  fields with the same name. 
9. A field name can be up to 64 characters long including spaces. 
10. Criteria determines how to filter the records in the Query output. 
11. The default extension of Adobe Photoshop file is .psd.
12. A selected area is indicated on the screen by a blinking selection border, called as Marquee. 
13. HTML is not a case sensitive language. 
14. Tags are of two types, container element and Empty element. 
15. Vinton Gray An American Scientist is often called as Father of Internet.
16. A browser is a software program that allow users to access and navigate the World Wide Web. 
17. URL stands for Uniform Resource Locator. 
18. Standby is a state in which monitor and hard disks are turned off, so that computer uses less power. When we want to use the computer again, it comes out of standby quickly. 
19. POP-UPS are extra browser windows of commercials that open automatically on browsing web pages. 
20. Each website has a main page. When we visit any website, the first page that opens up and provides links for other pages is called as Home Page.