Computer Systems

Computer Systems

1. Batch processing systems

   • A system executes a series of jobs automatically without manual intervention. These systems are only uses in business that has no urgency that a job is processed
   • An example of this is a payroll

2. Multi-access systems

   • A series of input such as a keyboard mouse and an output device (a monitor) but no computer unit the user uses the workstation to connect to the mainframe.
   • For example a fast food terminal

3. Real-time systems

   • The data is processed as soon as it is inputted into the system. Once the computer has processed the data and takes action if it is necessary.
   • An example of this is a flight simulator used to train pilots.

4. Real-time transaction processing

   • Every time an item is sold or bought or a booking is made the data is processed immediately. The transaction is processed in the order they are received and each transaction is completed before the next one is processed.
   • An example of this is theatre seat booking system