Twitter, foursquare, and other real-time media add to or leverage capabilities of smartphones--improving your ability to be well-informed in real-time.
a. true
b. false

True

Explanation: Twitter is the application that functions online for providing news and communication for connecting people on social network.Foursquare is also an online app that works on the social platform in the smartphones and provide the knowledge about activity of people moving through the real-time world.

Other real world apps that operate in the real time helps in providing information about the activities and incidents happening through the smartphones.This also increases the knowledge of the individual by discovering, reading,sharing of the information.Thus the statement given is true.

(http) hyper text transfer protocol

which means its an input that allows the "site" to connect with severs.