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Batch Systems
Date from the earliest computers, when they relied on stacks of
punched cards or reels of magnetic tape for input. -
Embedded systems
Are computers placed inside other products to add features
and capabilities. -
Hybrid systems
Are a combination of batch and interactive. They appear to be
interactive because individual users can access the system and get fast responses, but such a system actually accepts and runs batch programs in the background when the interactive load is light. -
Interactive systems
Give a faster turnaround than batch systems but are slower than
the real-time systems we talk about next. They were introduced to satisfy the
demands of users who needed fast turnaround when debugging their programs.
