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9 Cards in this Set
- Front
- Back
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An OS manages parts of the computer. Mention the 2 primary functions for this. |
- the operating system is loaded using a bootstrap loader - one of its primary functions is to manage resources |
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How does it manage peripherals? |
- communicates and sends data output to a valid output device - communicates with and recieves data input from a valid input device |
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How does it an OS manage printing using spooling? |
- data stored on hard-disk/in memory/stored in queue - document is printed when printer is free - benefit of spooling = user can carry on working/log off when waiting fro print job |
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How does the OS manage backing storage? |
- ensures that data is stored and can be retrieved correctly from any disk - creates and maintains filling system such as FAT and NTFS (accepted but not expected) - organises files in hierarchical directory structure |
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How and why does the OS help to compress files? |
- the amount of data is reduced and the file is made smaller - compression is used to saved disk space |
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What is disk de-fragmentation? What is a fragmented file? |
- a fragmented file is when files are split up and stored on different parts of the disk - disk de-fragmentation is when file parts are physically put re-arranged into the order required for access |
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How does the OS manage Memory (RAM)? |
- ensures that program /data do not corrrupt each other - ensures that all programs and data including itself is stored in correct memory locations |
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How does the OS manage processes? |
- ensures that different processes using the CPU don't interfere with each other - On a multi-tasking OS ensure that all tasks appear to run simultaneously |
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How does the OS manage security? |
- allows creation and deletion of user accounts - allows user to logon and change password |
