do you mean by multithreading OS? 5. What are the various categories of system software?6.What security measures does an operating system provide to a computer? 7. Explain the directory structure of DOS with the help of an example.
Answers
Answer:
4- ans-Multithreading is the ability of a program or an operating system process to manage its use by more than one user at a time and to even manage multiple requests by the same user without having to have multiple copies of the programming running in the computer
5- Ans-System software includes:
Operating systems.
Device drivers.
Middleware.
Utility software.
Shells and windowing systems
6- Ans-Operating system security (OS security) is the process of ensuring OS integrity,confidentiality and availability OS security refers to specified steps or measure used to protect the OS from threats,viruses,worms,malware or remote hacker intrusion.
7- Ans- A DIRECTORY IS JUST LIKE A FILE FOLDER WHICH CONTAIN ALL LOGICAL RELATED FILES. DOS FILES ARE ORGANISED IN A HIERARCHICHAL OR AN INVERTED TREE LIKE STRUCTURE. THE FILES ARE FURTHER DIVIDED INTO DIRECTORIES AND SUB-DIRECTORIES. THE MAIN DIRECTORY IS CALLED ROOT DIRECTORY.
Explanation:
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