CompuServe Messages

If a mainframe database application with multiple users drops dead due to a bug in the database which one of the users happened to trigger, it's highly likely that all of the other users will drop dead, too. Is that an example of one user crashing a system? Is the operating system at fault? Is the system manager at fault, for using an installed image (so that all users were sharing the same code in memory) rather than duplicating the code all over RAM? A controlled-access Amiga application will prevent any user from crashing the system intentionally or unintentionally, other than by performing a legal operation in the database which causes the database to halt; and this problem would be most likely detected by the users' front end as a database timeout, and allow an orderly exit.