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A Sad Mac can be deliberately generated at startup by pressing the interrupt switch (Also known as the Programmer's Key) on Macintosh computers that had one installed or by pressing Command and Power keys shortly after the startup chime.
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) 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 .
As the classic Mac OS lacked memory protection, "hard crashes" where an application crash simply froze the entire system weren't uncommon. With MacsBug installed, instead of an unresponsive system, the user would be dumped into MacsBug, where they could type ES to Exit to Shell (force quit the crashed application and return to the Finder ) or ...
Steady, short beeps Power supply may be bad Long continuous beep tone Memory failure Steady, long beeps Power supply bad No beep Power supply bad, system not plugged in, or power not turned on No beep If everything seems to be functioning correctly there may be a problem with the 'beeper' itself. The system will normally beep one short beep.
Allow user to press shortcuts one key at a time: ⇧ Shift press 5 times: ⇧ Shift 5 times [28] Hear beep when -lock key pressed: Numlock hold 5 seconds: Stop/slow repeating characters when key is pressed: Right Shift hold 8 seconds: ⇧ Shift hold for 8 seconds [29] [30] [31] Inverse (Reverse Colors) Mode Left Alt+Left Shift+PrtScn: ⌘ Cmd+ ...
The Option key may be labeled Alt, Option, ⌥, or any combination thereof. The Option key, ⌥, is a modifier key present on Apple keyboards. It is located between the Control key and the Command key on a typical Mac keyboard. There are two Option keys on modern (as of 2020) Mac desktop and notebook keyboards, one on each side of the space bar.
Mozilla Firefox 1.5 on Windows: hold Alt, press access key; Mozilla Firefox before version 14 on Mac OS X: hold Control, press access key; Safari 3 or earlier on Mac OS X: hold Control, press access key; Camino : hold Control, press access key; Opera 12 and lower: press and release ⇧ Shift+Esc, then press access key
Classic Mac OS: System 1: System 2: 1985 System 3: 1986 System 4: 1987 System Software 5: Also marketed as System 5; System Software 6: 1988 Also marketed as System 6; Macintosh computers (68k and PowerPC) System 7: 1991 System 7.5.1 was the first to refer to itself as Mac OS; Mac OS 7.6 was the first to be branded as "Mac OS" Mac OS 8: 1997 ...