3DES A symmetric encryption standard. It improves Data Encryption Standard (DES) by encrypting data in three passes with three separate keys. It was one of the standards evaluated by the National Institute of Standards and Technology (NIST) with Advanced Encryption Standard (AES), but was not selected. It is a slower and processor-intensive block cipher, but is still strong and used in some applications. It is also called triple DES and three DES.
3G Third generation of wireless technologies. 1G uses analog signals, and 2G uses digital signals. 3G provides higher transfer speeds using digital technologies.
4G Fourth generation of wireless technologies. It’s an improvement over 3G and includes speeds as high as 100 Mbps for ...