Internet is invented by US military agency - Advanced Research Project Agency in 1969 as ARPA net.

ISP - Internet Service Provider
Server - An online computer which stores the content.
URL - Uniform Resource Locator, a web address. e.g. - http://tour.bizhat.com
DNS - Domain Name System, is a distributed database.
http :// - Indicates browser to connect to a web document.
TCP/IP - Transmission Control Protocol / Internet Protocol. Here a message is split into packets and routed through different routes with IP address.
ISDN - Integrated Services Digital Network line gives a high speed Internet.
SMTP - Simple Mail Transfer Protocol.
POP - Post Office Protocol. E.g. - Phone number in Dial up Internet connection.
PPP - Point to Point Protocol allows TCP / IP connection.
Gateway - It is a hardware or software which translates files between two dissimilar protocols.
Bookmark / Favorites - You can bookmark a page of a site, so that next access will be fast.
Post - If a message or an article is sent to a news group, it is said to be posted.
Shortcuts / Aliases - Drag the program to desktop for easy access.