# Real time task
## 3 kinds of real time task

1. Head real-time
The hard real-time definition considers any missed deadline to be a system failure. This scheduling is used extensively in mission critical systems where failure to conform to timing constraints results in a loss of life or property.

3. Firm real-time
Firm real-time tasks are such type of real-time tasks which are associated with time bound and the task need to produce the result within the deadline. Although firm real-time task is different from hard real-time task as in hard real-time once deadline is crossed and task is not completed, system fails but in case of firm real-time task even after the passing of deadline, system does not fail.
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1. Video conferencing
2. Satellite based tracking
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4. Soft real-time
Soft real-time tasks are such type of real-time tasks which are also associated with time bound but here timing constraints are not expressed as absolute values. In soft real-time tasks, even after the deadline result is not considered incorrect and system failure does not occur

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1. Web browsing
2. Railway Ticket Reservation
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