Podcast
Questions and Answers
What is the process called when a computer is started from a completely powered-off state?
What is the process called when a computer is started from a completely powered-off state?
- Power Cycling
- Soft Booting
- Warm Booting
- Cold Booting (correct)
Which function of an Operating System involves monitoring the performance of various system components?
Which function of an Operating System involves monitoring the performance of various system components?
- Booting
- Control over system performance (correct)
- Security and error detection
- Job accounting
Which one of the following tasks does an Operating System NOT perform?
Which one of the following tasks does an Operating System NOT perform?
- Creating hardware components (correct)
- Job accounting
- Error detection and correction
- Coordinating between different software and users
What is meant by warm booting in computing?
What is meant by warm booting in computing?
Which of these is a key role of an Operating System in relation to software?
Which of these is a key role of an Operating System in relation to software?
What is one function of an Operating System related to resource management?
What is one function of an Operating System related to resource management?
Which activity is NOT typically associated with the responsibilities of an Operating System?
Which activity is NOT typically associated with the responsibilities of an Operating System?
What does the Operating System monitor to ensure performance quality?
What does the Operating System monitor to ensure performance quality?
Which of the following errors can an Operating System detect?
Which of the following errors can an Operating System detect?
Job accounting in an Operating System primarily involves which of the following?
Job accounting in an Operating System primarily involves which of the following?
What is the primary role of an operating system?
What is the primary role of an operating system?
Which of the following is NOT a common task performed by an operating system?
Which of the following is NOT a common task performed by an operating system?
What does the operating system do regarding security?
What does the operating system do regarding security?
Which of the following components are NOT considered part of the physical hardware in a computer system?
Which of the following components are NOT considered part of the physical hardware in a computer system?
During which process does the operating system load and start the computer?
During which process does the operating system load and start the computer?
How does the operating system handle errors during runtime?
How does the operating system handle errors during runtime?
What does coordination between software and users entail in an operating system?
What does coordination between software and users entail in an operating system?
Which of these is a service that an operating system does NOT provide?
Which of these is a service that an operating system does NOT provide?
What is firmware primarily used for?
What is firmware primarily used for?
Which operating system type is specifically designed for time-sharing among multiple users?
Which operating system type is specifically designed for time-sharing among multiple users?
What is a significant disadvantage of operating systems?
What is a significant disadvantage of operating systems?
How does an operating system help users interact with hardware?
How does an operating system help users interact with hardware?
What best describes the primary role of an operating system?
What best describes the primary role of an operating system?
Which of the following is NOT a type of operating system?
Which of the following is NOT a type of operating system?
What characteristic defines firmware compared to regular software?
What characteristic defines firmware compared to regular software?
Why might operating system software be considered expensive for small organizations?
Why might operating system software be considered expensive for small organizations?
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Study Notes
Introduction
- Computer science is the operating system for all innovation
- Operating system is a collection of software that manages a computer`s hardware and provides services for computer programs
- OS is vital component of system software in a computer system
- OS is interface between user and computer hardware
- OS performs basic tasks such as file management, memory management, handling input and output, and controlling peripheral devices
Applications of Operating System
- Key activities: security, error detection, control over system performance, job accounting, booting, coordination between other software and users
- Security and error detection: Prevents unauthorized access; handles a variety of internal and external hardware errors such as memory error, or a device failure or malfunction
- Control over system performance: Collects statistics on various resources, monitors performance parameters such as response time, recording delays
- Job accounting: Keeps track of time and resources used by various jobs and users
- Booting: Process of starting or restarting a computer
- Cold booting: Starting after being switched off completely
- Warm booting: Restarting the machine
- Coordination: Enables coordination of hardware components, coordination of and assignment of compilers, interpreters, assemblers and other software to the various users
Firmware
- Combination of firm and software
- Installed directly onto hardware during manufacturing
- Used to run user programs on the device
- Can be thought of as the software that enables hardware to run, such as the BIOS (Basic Input/Output System)
- Considered as software for hardware
- Stored in non-volatile memory
- Provides instructions to help hardware startup, communicate with other devices, and perform basic input/output functions.
Advantages of Operating System
- Creates an abstraction, hiding details of hardware
- Easy to use with a GUI
- Offers an environment for users to execute programs/applications
- Makes the computer system convenient to use
- Acts as an intermediary among applications and hardware components
- Provides computer system resources in an easy-to-use format
- Acts as an intermediary between hardware and software in the system
Disadvantages of Operating System
- If any issue occurs in the OS, you may lose all the contents stored in your system
- Expensive for small organizations, adding a burden on them
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