An alert box displayed by the System Error Handler when a system error has occurred. A resource that determines the appearance and function of system error alert boxes and system startup alert boxes. The process when the system initialization code located in ROM is executed. Memory is tested and initialized, ROM drivers are installed, device drivers are located, and more. The process when the system startup code located in ROM is executed.
Memory is tested and initialized, ROM drivers are installed, device drivers are located, and more.
The alert box displayed at system startup time. A patch that transfers control to routine, and then regains control after the routine completes execution. Compare head patch. The interval of time the system waits for the startup drive to respond while the computer is booting. An exception that is caused by an A-line instruction that executes a Toolbox routine.