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Paper 2 PPQ follow up notes - Coggle Diagram
Paper 2 PPQ follow up notes
Cloud storage
Advantages
Allows for easy backup of files
Can be accessed from anywhere so long as there is an internet connection
Can be accessed from any device with internet connection
Allows for easy backup of files
Disadvantages
Requries an internet connection to access data
Could have slower backup of files compared to local storage
Security of data is out of person's control
CPU function
Memory Management
Manages computer's memory
Controls which parts of memory are being used
Security Management
User authentication
Protection against malware e.g firewalls
Input/output management
Manages input/output devices
Handles peripherals and sends device interrupts e.g 'printer out of ink'
Allows devices to receive and send data
Managing applications
Controls acess to applications
Prevent users or processes using unauthorised programs
Optical storage