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1.1.2 -> 1.2.4 - Coggle Diagram
1.1.2 -> 1.2.4
Types of OS's
Real Time -> Uses to handle real time information, usually detected by a form of sensor
Embedded -> Stores an unchangeable and rigid OS, usually found in areas such as Washing Machines or Microwaves
Multi User -> Very effective at handling collaborative working, processing power is split according to allow multiple users to work on a given exercise
Multi Tasking -> An operating system which allows a user to perform more than one task at a given time
Memory Management
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Paging -> Pieces of information are divided into sections keeping the most frequent in main memory and storing rarely used in virtual
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Operating Systems
An operating system is a software that manages computer hardware and software, it supplies an interface for the user and utilities for managing the computer
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Interrupt -> When an external device is connected, the CPU is interrupted and informed that another location required processing power
Polling -> Polling is the process of a CPU going round and checking each external devices to see if it needs attention. It becomes inefficient because if a device doesn't need attention, time is wasted
ISR -> To execute a software process that is invoked by an interrupt request from an external device
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