Opera (web browser) layout engine of its competitor Google Chrome. Features of the Opera web browser include private browsing, tabbed browsing, download manager, mouse gestures and browser extensions. Opera began in 1994 as a research project at Telenor, the largest Norwegian telecommunications company. In 1995, it branched out into a separate company named Opera Software. Opera was first released publicly in 1996 with version 2.10, which only ran on Microsoft Windows. In an attempt to capitalize on the emerging market for Internet-connected handheld devices, a project to port Opera to mobile device platforms was started in 1998. Opera 4.0, released in 2000, included
SlipKnot (web browser) Brooks set out in April 1994 to create a fully graphic, multifont web browser for home PC users. SlipKnot version 1.0 was completed and released as shareware in November 1994, thus making it the first purchasable browser on the market. Its name is a play on the term slip knot (a type of knot) against SLIP (Serial Line Internet Protocol) -- an early version of TCP/IP over modem lines—and not after the fact that, unlike Mosaic and Netscape browser offerings, a SLIP connection was not necessary to view graphical web content. SlipKnot was given the Best Communications Shareware Program of