Computer part2

1. Cable TV Network is an example of  A) LAN  B)MAN   C) WAN D) NONE OF THESE 
2. what symbol is present on the no. key 7 on the keyboard ? ans & 
3. 1st electronic programmable computer ?  Colossus 
4. MS Word was released in 1983 
5. JAVA Language was releaded in 1995 
6. MS POWERPOINT was launched on May 22, 1990.
7. NAT stands for Network Address Translator