3 Examples of mainframe computers
z900
System z9
System z10
Here are the steps I would do:
Do a "hard" power off. Hold the power key until the screen turns off. Wait 10 seconds. Turn it on. If it still shows the screen... then i'm not sure.
The error is occurring because it has nothing to boot off of. It's probably something wrong with your hardware. The instructions say for you to insert a "boot disk" and press any key.
When you move the pointed to the left of two existing rows, a SUPER POINTER appears outside the table.
The super pointer is usually a small black arrow or a white arrow that is pointing to the right. Clicking the mouse while the super pointer is active will select the row.
The super pointer also appears when the mouse pointer is at the top edge of a column. The super pointer will be pointing downwards.
it is costly, very costly.
