The Marine Corps has banned the use of sites like Facebook, MySpace and Twitter on its computers.

VOA: special.2009.09.14

Market researchers estimate that more than one billion personal computers are in use worldwide.

VOA: special.2010.04.12

He does not use any computers or drawings to plan his buildings.

VOA: special.2010.07.30

you have to assume they are in," He says the more advanced a country is in its use of computers and the Internet, the more vulnerable it may be.

VOA: standard.2009.08.11