the use of a
piece of software known as the monitor . With this type of OS, the user no longer has
direct access to the processor. Instead, the user submits the job on cards or tape to a
computer operator, who batches the jobs together sequentially and places the entire
batch on an input device, for use by the monitor. Each program is constructed to
branch back to the monitor when it completes processing, at which point the monitor
automatically begins loading the next program.