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System Software (Types Of Software (System Software (Utility Software,…
System Software
Types Of Software
System Software
Utility Software
Operating System
Enables computer to operate its hardware and application software
The interface between computer hardware and user application programs
Application Software
Packaged Software
Tailored Software
Enables the computer to do a particular task (i.e. word processing)
Modes Of Processing
Batch Processing
Data is collected, but not ‘sent’
These batches can then be processed at a convenient time without disruption
Applications that use batch processing tend to have high volumes of data to collect and process
Real-Time Processing
Processing the data immediately is essential to avoid disastrous results
Main Functions Of System Software
Storage
The OS manages the storage of data and files
Unnecessary files can then be deleted
Allocating Memory
The OS organises the use of main memory between programs and data files
Data needs to be transferred from a HDD/SDD to main memory (i.e. RAM) before it can be used
Locates free memory in RAM and allocates this to the program/file