This week in 1920 – KDKA of Pittsburgh began broadcasting as the first commercial radio station. The first broadcast is the results of the 1920 presidential election.
1969 – The first-ever computer-to-computer link was established on ARPANET, the precursor to the Internet.
1987 – In Japan, NEC released the first 16-bit (fourth generation) video game console, the PC Engine, which was later sold in other markets, including the US, under the name TurboGrafx-16.
In 1988 this week – The Morris worm, the first Internet-distributed computer worm to gain significant media attention, was launched by Cornell University graduate student, Robert Tappan Morris. It resulted in the first conviction in the US under the 1986 Computer Fraud and Abuse Act. A floppy disk, containing the original source code for the worm is housed at the Computer History Museum in Mountain View, California.
And this week in 1998 – ATSC HDTV broadcasting in the United States was inaugurated with live coverage of the launch of the Space Shuttle Discovery from Cape Canaveral in Florida.