o performs system "power-up" diagnostics tests (described later in this chapter). These tests exercise the major components in the system. o displays system configuration and power-up test reports. o provides low-level drivers for floppy diskette, hard disk, WorkNet, and RS232 I/O ports for keyboard and CRT. o provides a system Debugger program. The sequence of events in the Monitor program is given below. The results of each step is shown on the following initial display screen. 486 MONITOR xn.n >Power-up test passed or >Power-up test failed: (followed by failure report) Upon power-up, the 486 Monitor performs the following operations:
o Runs power-up diagnostic tests to verify that all major hardware devices are functioning correctly. Under normal circumstances, the system beeps once to indicate that the power-up test has started. A few seconds later a second beep indicates that the system passed the power-up test. If the system fails the power-up test, the monitor prints an error code on the screen. NOTE The error code will not print on the screen if a CRT failure occurs. o Displays or prints the system configuration (memory size, number of disk drives, and network capabilities). 6-2