The programmer's key, or interrupt button, is a button or switch on Classic Mac OS-era Macintosh systems, which jumps to a machine code monitor. The symbol on the button is ⎉: U+2389⎉CIRCLED HORIZONTAL BAR WITH NOTCH. On most 68000 family based Macintosh computers, an interrupt request can also be sent by holding down the command key and pressing the power key on the keyboard. This effect is also simulated by the 68000 environment of the Mac OS nanokernel on PowerPC machines and the Classic environment.
The interrupt button/programmer's key protruding from the air vent on the left-hand side of an Apple Macintosh Classic II computer (on the left, above the circular symbol)
Modern Mac hardware no longer includes the interrupt button, as the Mac OS X operating system has integrated debugging options. In addition, Mac OS X's protected memory blocks direct patching of system memory (in order to better secure the system).
^Torres, Gabriel (January 2, 2013). "Inside the Macintosh Plus". Hardware Secrets. Retrieved September 18, 2018.
^Cuccia, Sandro (January 25, 2014). "Happy Birthday, Mac - How to Recover From the Dreaded Bomb Box Error Message". The Mac Observer. Retrieved September 18, 2018.
programmer, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, find, sources, news, newspapers, books, scholar, jstor, september, 2018. This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Programmer s key news newspapers books scholar JSTOR September 2018 Learn how and when to remove this message The programmer s key or interrupt button is a button or switch on Classic Mac OS era Macintosh systems which jumps to a machine code monitor The symbol on the button is U 2389 CIRCLED HORIZONTAL BAR WITH NOTCH On most 68000 family based Macintosh computers an interrupt request can also be sent by holding down the command key and pressing the power key on the keyboard This effect is also simulated by the 68000 environment of the Mac OS nanokernel on PowerPC machines and the Classic environment The interrupt button programmer s key protruding from the air vent on the left hand side of an Apple Macintosh Classic II computer on the left above the circular symbol A plastic insert came with Macintosh 128K Macintosh 512K Macintosh Plus and Macintosh SE computers that could be attached to the exterior of the case and was used to press an interrupt button located on the motherboard 1 2 Modern Mac hardware no longer includes the interrupt button as the Mac OS X operating system has integrated debugging options In addition Mac OS X s protected memory blocks direct patching of system memory in order to better secure the system See also editInterrupt Context switch MacsBugReferences edit Torres Gabriel January 2 2013 Inside the Macintosh Plus Hardware Secrets Retrieved September 18 2018 Cuccia Sandro January 25 2014 Happy Birthday Mac How to Recover From the Dreaded Bomb Box Error Message The Mac Observer Retrieved September 18 2018 External links editMicroBug The ROM Debugger TN1136 at the Wayback Machine archived June 20 2004 nbsp This Macintosh related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Programmer 27s key amp oldid 1142639433, wikipedia, wiki, book, books, library,
