1981

By the beginning of the year, more than 200 computers in dozens of institutions have been connected in CSNET. BITNET, another startup network, is based on protocols that include file transfer via e-mail rather than by the FTP procedure of the ARPA protocols.
The Internet Working Group of DARPA publishes a plan for the transition of the entire network from the Network Control Protocol to the TCP/IP protocols developed since 1974 and already in wide use (RFC 801).
At Berkeley, Bill Joy incorporates the new TCP/IP suite into the next release of the Unix operating system. The first ‘portable’ computer is launched in the form of the Osborne, a 24-pound suitcase-sized device.
The IBM PC is launched in August 1981.
Meanwhile, Japan mounts a successful challenge to US chip makers by producing 64-kbit chips so inexpensively that U.S. competitors charge the chips are being ‘dumped’ on the U.S. market.