Difference between 3G and 4G

Have you ever wondered, what exactly are 3G and 4G? The terms 3G and 4G describe the third and fourth generations of wireless evolution. Before 3G, mobile phones could generally only handle voice calls and text messaging. With the roll-out of 3G, multimedia functionality, such as picture messaging and HTML web browsing, were introduced. The introduction of 4G will make possible such facilities as IP telephony, ultra-broadband Internet access, gaming services and streamed multimedia.