The History of the Internet

Backbone:56Kbps CSNET, 1.544Mbps(T1) NSFNET
Hosts:313,000
ARPANET Terminated
While the T3 lines were being constructed, the Department of Defense disbanded the ARPANET and it was replaced by the NSFNET backbone. The original 50Kbps lines of ARPANET were taken out of service.

MP3 Is Born
The Moving Pictures Experts Group (MPEG) in conjunction with a German company Fraunhofer-Gesellshaft implements MP3 audio compression. During the 1980s, MPEG had worked to develop a compression method to transmit high-quality audio files. Different amounts of compression were represented by "layer" algorithms, where the best quality was a compression ratio of 1:4, known as Layer 1. The most efficient ratio was Layer 3, compressing sound 1:12, or reducing the size of the audio file 12 times compared with the original CD standard. This compression became known as MPEG Layer 3, or MP3.