On Windows computers, extensions consist of a dot ( period ) at the end of a file name, followed by a few letters to identify the type of file.

On the other hand, Web-based newspapers such as CNET use the term in both editorial and journalistic contexts, for example " Windows Live to Get Censorware.

* On a computer running Microsoft Windows, Mac OS X, or Unix running the X Window System, clicking the secondary mouse button ( usually the right button ) opens a context menu for the region that is under the mouse pointer.

On 25 June 1998, Microsoft released Windows 98 ( codenamed Memphis ).

On 25 August 2001, Microsoft released Windows XP ( codenamed " Whistler ").

On 25 April 2003 Microsoft launched Windows Server 2003, a notable update to Windows 2000 Server encompassing many new security features, a new " Manage Your Server " wizard that simplifies configuring a machine for specific roles, and improved performance.

On 25 April 2005, Microsoft released Windows XP Professional x64 Edition and Windows Server 2003, x64 Editions in Standard, Enterprise and Datacenter SKUs.

On the Building Windows 8 blog, it was announced that a computer running Windows 8 can boot up much faster than Windows 7.

On the various Microsoft Windows platforms, command-line tools for development are seldom used.

* On modern systems, Mac OS X Snow Leopard represents a 65, 536 byte file as " 66 KB ", rounding to the nearest 1000, while Microsoft Windows 7 would divide by 1024 and represent this as " 64 KB ".

On Microsoft Windows, it appears that the timing of commands to hardware is not exact.

On the other hand IBM donated Object REXX for Windows and OS / 2 to the Open Object REXX project maintained by the REXX Language Association on Sourceforge.

On March 11, 1997, id Software released WinQuake, a version of the non-OpenGL engine designed to run under Microsoft Windows ; the original Quake had been written for DOS, allowing for launch from Windows 95, but could not run under Windows NT-based operating systems because it required direct access to hardware.

On June 15, 2009, THQ released Red Faction: Guerrilla, for the Xbox 360, PlayStation 3 and Microsoft Windows.

On Microsoft Windows, a process that accesses invalid memory receives the STATUS_ACCESS_VIOLATION exception.

On Microsoft Windows, SDL uses a GDI backend by default.

On Microsoft Windows operating systems it is named.

On October 27, 1998, Microsoft announced that the name of the final version of the operating system would be Windows 2000, a name which referred to its projected release date.

On or shortly before February 12, 2004, " portions of the Microsoft Windows 2000 and Windows NT 4. 0 source code were illegally made available on the Internet.

On Apple Macintosh computers, there are keyboard shortcuts for the most common diacritics ; Option-e followed by a vowel places an acute accent, Option-u followed by a vowel gives an umlaut, option-c gives a cedilla, etc.

On January 24, 1984, Apple Computer Inc. ( now Apple Inc .) introduced the Macintosh personal computer, with the Macintosh 128K model, which came bundled with what was later renamed the Mac OS, but then known simply as the System Software.

On the Macintosh, fonts were originally stored in hand-tuned bitmap font files that specified individual pixel locations for a font at a particular size.

On the Macintosh platform, Microsoft released a PowerPC version of Windows Media Player for Mac OS X in 2003, but further development of the software has ceased.

On May 31, 2002, LucasArts and Aspyr Media announced that a Macintosh version of the game would be released.

In 1990, Kapor's new company ON Technology introduced their new product On Location, an application designed for the Macintosh that contained an indexing system that permit quick retrieval and display of text on the Mac's hard disk.

On a PowerPC-based Macintosh, the Open Firmware interface can be accessed by pressing the keys at startup.

On Apple Macintosh operating systems ( including Mac OS X ), it can be achieved by pressing and holding the Option key then typing " N ", followed by typing either " N " or " n ".

On the Macintosh, pixels are square and a GrafPort has a default resolution of 72 pixels per inch, chosen to match conventions established by the printing industry of having 72 points to the inch.

On Windows-based computers, holding while typing on the numeric keypad will create the cent sign ; on Macintosh systems, ; on Unix systems with a compose key, is a typical sequence.

On Macintosh systems, 24-bit color is referred to as " millions of colors.

On a Macintosh AZERTY keyboard, the acute accent is generated by a combination of the Alt + Maj + &, keys, followed by the vowel.

On August 26, 1991, AppleLink, running on a Macintosh Portable was used to send the first e-mail from space, aboard the Space Shuttle Atlantis, mission STS-43.

* On Macintosh systems, it may be entered by pressing option shift = ( on the non-numeric keypad ).

* On the Macintosh platform, Target Disk Mode allows a computer to operate as an external FireWire hard disk, essentially a disk slave mode.

On the Macintosh, many keyboard layouts employ dead keys.

On a Macintosh, pressing one of these Option-key combinations creates the accent and highlights it, then the final character appears when the key for the base character is pressed.

On Macintosh systems, XScreenSaver works with the usual Apple screen saver framework, and X11 is unneeded.

On March 13, 2012 The 7th Guest for Macintosh was released on the Mac App Store.

On 10 December 2011, Harris effectively admitted defeat in the leadership race, leaving the field to the last two contenders, Johann Lamont and Ken Macintosh.

On the Macintosh operating systems this works if you have a kerberos ticket ( use negotiate ).

On a Macintosh, the Alt key is called the Option key.

On 12 February 2009, Cameron Macintosh ( producer ) announced that Djalili will appear as the second Fagin in the new West End production of Oliver!