Difference Between

GSM vs 3G Network Technology GSM (Global System for Mobile Communication) and 3G (3rd Generation mobile technology) are both mobile communication technologies that have been evolved over the time. GSM was introduced as a standard in 1989 while 3G was proposed by 3GPP (3rd Generation Partnership Project) in year... 

UMTS vs WCDMA Network Technology UMTS and WCDMA are terms related to 3G mobile communication. While UMTS refers to the 3G network specification, WCDMA is one of the radio access technologies for UMTS. UMTS (Universal Mobile Telecommunications System) This is the successor of 2G (GSM) network specification in which...