Additional functions could, of course, be added by user programs.

The Flash memory can also be used to store user programs and data.

These items cannot usually be altered by a user program.

This also provided opportunities for user programs to hang the system.

Any card that started with was a command to the Supervisor and could not be used as user program or data.

This left little room for user programs and data.

Of course we have essentially that today with user programs running atop this operating system.

And then on top of that is user programs that are running.

George used the trusted program facilities provided by executive to run the user programs.

The GP32 can run user programs out of the box.