Sad Mac
The Sad Mac (Engl. For sad Mac ) is the older a symbol computers from the Macintosh series ( Old World ROM is used) to an event occurring when the system error display, which makes the subsequent start of the system impossible. It shows a small representation of a Macintosh 128k , with which this symbol was introduced for the first time, whose built-in monitor shows a sad face with the corners of the mouth drawn down and the (dead) eyes crossed.
variants
Below the Sad Mac - icons is that gives with the help of several hexadecimal indication of the nature and cause of the error display. In the first, MC68000 -based Apple Macintosh computers, the display was without sound. Later models using the Sad Mac will also play a short sound or melody when such an error occurs. The tone sequence varies depending on the error and allows experienced service technicians to draw conclusions about the type of error; with the frequent cause of faulty memory e.g. B. on the affected memory bank.
The Sad Mac can be specifically triggered by pressing the Interrupt key at startup (if the corresponding device has one), or by pressing the key combination Command + On / Off key after the start tone .
During a successful launch, a similar picture is shown with a happy face.
See also
- Apple's iPod has a similar symbol that shows a sad iPod.
- Kernel panic under Unixoid operating systems
- The bomb as an error message under Mac OS and Atari TOS
- The blue screen in Microsoft Windows operating systems
- Guru meditation with the Amiga