What is data processing?
Data processing is when the raw data is input into the computer and output as the useful information.
Types of processing
- Batch processing
Where a number of similar jobs or tasks are collected together and processed by a computer all at once.
For examples :
- producing bills
- processing bank cheques
Advantage is that it can be processed without human and disadvantage is that it takes long time.
- Online processing
Where a user communicates directly to the computer
For examples:
- Booking systems
- ATMs
Advantages is that processing is carried out automatically and disadvantages is that you need virus/hacker security.
- Real-time processing
It’s similar to online processing but more accurate timing.
For examples:
- Burglar alarms
- Warning systems
Advantage is that it carries out the jobs that humans can’t do and disadvantage is that very expensive to buy.