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 Windows and Macintosh systems, DejaVu is, however, practically unknown, whereas Bitstream Vera Sans has installation bases of 25 % and 20 % there, and 79 % on Unix, according to a survey.

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 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!

On most modern operating systems, files are organized into one-dimensional arrays of bytes.

On the PC compatible platform, an entire family of operating systems was called DOS.

On Unix-like operating systems it is the de facto standard.

On January 3, 1894 he installed a triplex apparatus on the telegraph between Paris and Bordeaux that had previously been operating with some difficulty on the Hughes telegraph system.

On rare occasion, too many of the bank's customers will withdraw their savings and the bank will need help from another institution to continue operating ; this called a bank run.

On joining Sun, he led Project Indiana, which he described as " taking the lesson that Linux has brought to the operating system and providing that for Solaris ", making a full OpenSolaris distribution with GNOME and userland tools from GNU plus a network-based package management system.

On the belief that this was due to the same geological forces operating in the past as the very slow geological forces seen operating at the present day, the thicknesses of exposed rock layers implied to him enormous stretches of time.

On 8 August 1972, Rines ' Raytheon DE-725C sonar unit, operating at a frequency of 200 kHz and anchored at a depth of, identified a moving target ( or targets ) estimated by echo strength to be in length.

On embedded systems, the real-time execution of instructions is expected from the low-level embedded operating system.

David Bargut, another Rosario steel executive, had been assassinated the day before. On 10 June 1975, Peronist guerrillas operating in the city of Santa Fe shoot and kill 38-year-old Juan Enrique Pelayes, a trade-union leader as he made his way to a bus-stop.

On 26 July Montoneros guerrillas operating in the San Justo suburb of Buenos Aires shoot and kill an off-duty policeman, Ramón Emilio Reno in the presence of his 13-year-old brother.

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 September 6, 2006, SGI announced the end of development for the MIPS / IRIX line and the IRIX operating system.

On Unix-like operating systems, a signal called SIGSEGV is sent to a process that accesses an invalid memory address.

On the Apple II, unlike modern computers that use standardized device drivers to manage device communications, the operating system directly controlled the step motor that moves the floppy drive head, and also directly interpreted the raw data called nibbles read from each track to find the data sectors.

On 16 January 1878, the Turkish steamer Intibah became the first vessel to be sunk by self-propelled torpedoes, launched from torpedo boats operating from the tender Velikiy Knyaz Konstantin under the command of Stepan Osipovich Makarov during the Russo-Turkish War of 1877-78.

On Microsoft Windows operating systems it is named.

On Unix-like operating systems, the traceroute utility by default uses User Datagram Protocol ( UDP ) datagrams with destination port numbers from 33434 to 33534.

On Unix-like operating systems, using one of these ports requires superuser operating permission.

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 Unix and Unix-like computer operating systems, a zombie process or defunct process is a process that has completed execution but still has an entry in the process table.

On November 12, 2001 the Airbus A300 operating the route crashed into the Belle Harbor neighborhood of Queens, a borough of New York City shortly after takeoff.

On June 1, 2006, the University of California ended its sixty years of direct involvement in operating Los Alamos National Laboratory, and management control of the laboratory was taken over by Los Alamos National Security, LLC.