Modes of Processing Flashcards
What is Real-Time Processing?
In real-time processing data is processed immediately. The output is processed quickly which influences the next input received.
What is Real-Time Processing used for?
- For booking systems, e.g. online ticket booking
- Online stock control systems
- Used for the safe running of systems, e.g. air traffic control
What is Batch Processing?
When all the data that needs to be input is collected together in batches at intervals are processed as a single operation.
What is Batch Processing used for?
- Banking systems: Processing bank statements
- Billing systems, e.g. gas, electricity or telephone
- Pay role Systems: Weekly/Monthly payment
Why is Real-Time Processing important?
It can cope with a lot of changes or processes in a short space of time.
Why is Real-Time Processing important and what are some disadvantages?
It can cope with a lot of changes or processes in a short space of time.
There’s a limit to the number of users or tasks who can access the system.
When will batches be processed?
Processor downtime- night.
How can Batch Processing be efficient?
Can be carried out quickly without user interaction.
Why might Batch Processing fail?
Possibly due to errors and because it’s dependent on correct data.
Define a Transaction File.
Stores transactions in an application that will be used to update the master file.
Define a Master File.
Used to store reference data within an application on a computer system.
What is Multi-User Processing?
When several users appear to have individual control of the system at the same time. It is implemented by using slices, an allocated length of time for each program or user.
What does Multi-User Processing give the appearance of?
Gives the appearance that multiple users are working on different tasks simultaneously.
