Category
page 1Software wars
mobile operating system
operating system that operates a mobile device
endianness
thumb|upright=2|Diagram demonstrating big- versus little-endianness
browser wars
competition between web browsing applications for share of worldwide usage
indentation style
computer programming convention
Editor war
rivalry between users of Emacs and Vim
Unix wars
struggles between vendors of the Unix computer operating system in the late 1980s and early 1990s to set the standard for Unix thenceforth

XBill
XBill is an arcade style game for the X Window System. The game features a bespectacled character known as "Bill" (a spoof of Bill Gates). The goal is to prevent Bill's legions of clones, referred to as "micro-Bills", from installing "Wingdows", a virus "cleverly designed to resemble a popular operating system" (a parody of Windows), on a variety of computers running other operating systems. It was popular among Linux gamers at the end of the 1990s, selected as Linux Journal reader's second favourite Linux game in 1999.