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Performance of Operating Systems
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Disk Defragmenter
This will group data on the hard disk so related data is not split across different locations.
This improves read/write time.
Performance of this tool can be slow if:
- Not regularly run
- Hard disk is very large
- Other programs are running
Utility Software
Backup
Used to automatically backup data so it can be recovered.
This allows us to recover from data loss, such as that caused by malware.
Performance of this tool can be slow if:
- Hard drive is fragmented
- Hard disk is very large
- Malware causing problems
- Slow data storage platform
Software Updates
Automatically updates software, including the O/S.
This can fix bugs, improve security & add features.
Performance of this tool can be slow if:
- Not regularly run
- Internet connection is slow
Small programs designed to help manage and maintain your computer system.
Operating systems come with several pre-installed to maintain performance.
Examples include:
Disk/Registry Cleanup
Disk cleaner will remove old redundant data.
Registry cleaner will remove old redundant registry entries.
This can save space & improve disk read/write.
Performance of this tool can be slow if:
- Not regularly run
- Hard disk is very large
- Fragmented hard disk
Anti-Virus
Prevents your computer from being infected by malware.
This stops data being damaged & performance being affected by viruses, etc.
Performance of this tool can be slow if:
- Hard disk is very large
- Malware causing problems
- Other programs are running
- Software Updates
- Anti-Virus
- Firewalls
- Disk Defragmenter
- Backup
- Disk/Registry Cleaner
Firewalls
Monitors traffic coming into and out of your computer over a network to look for anything suspicious.
This stops viruses & hackers causing harm.
Performance of this tool can be affected by:
- Malware causing problems
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Performance of Operating Systems
Hardware
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Memory & processing power is needed to run the O/S and applications.
Too many programs, or too little RAM/CPU power, can stretch resources causing performance issues.
A fragmented hard disk can also reduce performance.
Operating System Factors
Operating systems over time can reduce in performance.
Many factors can cause this, including issues relating to:
- Hardware
- Malware
- Virtual Memory
Virtual Memory
Thrashing is where the operating system is having to constantly switch data between main memory and virtual memory.
This massively reduces performance.
A pagefile that is too small can also reduce performance of the operating system.
Malware
Malicious software like viruses can corrupt data, affect network traffic & take over O/S functions.
This reduces performance and can break the system entirely. This might require a complete reinstall of the O/S.