May 2, 1983
Microsoft introduces the Microsoft Mouse for IBM and IBM-compatible PCs. The mouse featured two buttons and is available by itself or will later be bundled with the new Microsoft Word software, which Microsoft would release in September. Microsoft will manufacture nearly one hundred thousand units of the device, but will only sell five thousand before introducing a second, more popular version of the device in 1985.
April 30th, 1993
At the urging of Tim Berners-Lee, the creator of the World Wide Web protocol, the directors of CERN release the source code of World Wide Web into the public domain, making it freely available to anyone, without licensing fees. The decision to make the World Wide Web software and protocols freely available is considered by some as possibly the single most important moment in the history of the Internet. In fact, some historians mark this as the birth of the Web.
April 29, 2004
The Sasser worm is released into the wild, infecting over 1 million Windows computers worldwide. Looks like 1 million PC users stepped into a big pile of sassy!
April 28, 2003
Apple Computer launches the iTunes Music Store. The store sells music for 99¢ a song for use with the Apple iPod and iTunes software. It is not the first service to sell digital music, but it will become the first to gain widespread popularity. The service will be an instant success, selling over one million songs in its first week and going on to change the music industry forever. The iTunes Music Store is now the #1 music retailer in the United States, surpassing Wal-Mart in 2008.
April 27, 1981
Xerox introduces the Xerox 8010 Star Information System, the first commercial system utilizing a computer mouse, among other now commonplace technologies. The 8010 was geared towards business and was not a commercial success, therefore the mouse remained in relative obscurity until the Apple Lisa, but more prominently the Apple Macintosh, brought the mouse into the mainstream.
April 25, 1996
Yahoo! begins advertising its web-based search service on national television, featuring the tag line “Do You Yahoo?”. The ads first air during Late Night with David Letterman, Saturday Night Live, and Star Trek. This was a very early example of the Internet entering into the mainstream.
April 25, 1990
The crew of the Space Shuttle Discovery deploys the US$2.5 billion Hubble Space Telescope. There will be initial difficulties caused by a flaw in the design of the telescopes mirror. Image correction software will keep the telescope useful until corrective optics are installed on December 25, 1993.
April 24, 1984
The Apple IIc was Apple’s first attempt at a portable computer. Dealers place orders for more than 52,000 units on the first day. Apple also announces that over 60,000 Macs have been sold since their introduction in January that year. In contrast, the Apple III line only sold an estimated 120,000 units in the four years since it was introduced, losing Apple about $60 million dollars.