Podcast
Questions and Answers
What is the key role of the BIOS during the boot process?
What is the key role of the BIOS during the boot process?
- Activating hardware setup as manufactured. (correct)
- Checking configurations and customizations.
- Handling errors encountered during startup.
- Loading the operating system into memory.
What action performed on a computer would be considered illegal?
What action performed on a computer would be considered illegal?
- Modifying the operating system's default settings.
- Selling a device without an operating system installed. (correct)
- Developing applications for a specific operating system.
- Using open-source operating systems for commercial purposes.
Which of the following reflects the role of an operating system?
Which of the following reflects the role of an operating system?
- Serving as the master controller for all activities within a computer. (correct)
- Creating hardware drivers for peripheral devices.
- Managing specialized software applications.
- Providing user-based application tasks.
What is the primary function of a user interface (UI) in an operating system?
What is the primary function of a user interface (UI) in an operating system?
Which operating system is known for being open-source and used in Web-Based Google Chrome OS?
Which operating system is known for being open-source and used in Web-Based Google Chrome OS?
Which scenario illustrates a key difference between mobile devices and computers?
Which scenario illustrates a key difference between mobile devices and computers?
What is the expected result of selecting 'Sign Out' on a computer in a university lab?
What is the expected result of selecting 'Sign Out' on a computer in a university lab?
Why should users avoid cancelling operating system updates?
Why should users avoid cancelling operating system updates?
What does the 'Power-On Self Test' do during the boot process?
What does the 'Power-On Self Test' do during the boot process?
What is the role of Device Drivers within Operating Systems?
What is the role of Device Drivers within Operating Systems?
What defines the function of system software?
What defines the function of system software?
Which of the following is typically associated with GUI-based operating systems?
Which of the following is typically associated with GUI-based operating systems?
What advantage does Linux provide compared to other operating systems?
What advantage does Linux provide compared to other operating systems?
What is an example of a task that is NOT managed by the Operating System?
What is an example of a task that is NOT managed by the Operating System?
What is the difference between Cold Boot and Restart (Warm Boot)?
What is the difference between Cold Boot and Restart (Warm Boot)?
What does the Sleep option do?
What does the Sleep option do?
What should you be wary of as a user?
What should you be wary of as a user?
Why should you keep all your software updated?
Why should you keep all your software updated?
Which statement explains best how users interact with Operating Systems?
Which statement explains best how users interact with Operating Systems?
During the boot process, what action does the operating system perform after the Power-On Self Test?
During the boot process, what action does the operating system perform after the Power-On Self Test?
Flashcards
Boot Process
Boot Process
The startup process of a computer, involving activating BIOS, Power-On Self Test, loading OS, checking configurations, and handling errors.
Function of an Operating System (OS)
Function of an Operating System (OS)
All devices must have one. It's the master controller for a computer's activities, managing multi-users and multi-tasking.
User Interface
User Interface
It's the means by which users and computers interact, typically through input and output devices and software.
GUI
GUI
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Cold boot
Cold boot
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Restart (Warm Boot)
Restart (Warm Boot)
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Shut down
Shut down
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Sleep
Sleep
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Hibernate
Hibernate
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Operating System Updates
Operating System Updates
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Sign Out
Sign Out
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Study Notes
- All devices require an operating system (OS), making it illegal to sell a device without one
- The OS serves as the primary controller for all computer activities
OS Functions
- Managing multi-users
- Multi-tasking
- Managing multiple users and multitasking are key OS functions
User Interface
- The means by which users and computers interact through input/output devices and software, known as the user interface
- Current OSs employ a GUI, using icons, windows, and menus
Activating the Operating System
- The boot process involves starting up a device:
- Begins with activating the BIOS from ROM, which contains the hardware setup as manufactured/distributed
- A Power-On Self Test compares actual info with BIOS & CMOS info
- Following the loading of the OS, the system checks configurations and customizations, then handles errors
Types of Operating Systems
- Windows: Commonly used in PCs
- Employs a GUI
- Proprietary licensed - For example Windows 10
- OS X: Used in Apple Macintosh computers with a GUI and licensed
- iOS: Used in iPad and iPhone devices, also employing a GUI and is licensed
- Android: Found in Huawei phones and Amazon Kindle devices, utilizes a GUI and is open-source
- Linux: Used in Ubuntu, Web-Based Google Chrome OS, uses a GUI and is open-source
- Unix: Developed by AT&T, uses a GUI, and is licensed
Mobile vs Computer Operating Systems
- Mobile devices use operating systems:
- Android and iOS
- Windows operating systems
- These enable basic operating functions
- Mobile uses Apps such as "WhatsApp, Snapchat" vs Application Software (Word, Excel)
- Mobile uses Touch and Swipe, whereas computers use Mouse and Keyboard
- Includes Operating System / Utilities (Windows Update, Anti-virus) and App/Application Updates
Windows 10 Activation/Deactivation Options
- Cold Boot: Starts the computer from a complete shut-down
- Restart (Warm Boot): Similar to shut-down, but the system reboots afterward
- Shut Down: Closes all programs, deletes temporary files, and powers off the computer
- Sign Out: Closes files and deletes temporary files while leaving the computer on
- Important for NMU labs
- Sleep: Keeps work in memory and puts the computer into a low-power standby mode
- Hibernate: Saves work to the hard drive, turns off the computer, and restores the status upon the next power-up
Potential Issues
- Corrupted OS files create computer instability
- Incompatibilities between operating systems and applications/devices lead to unresponsiveness
- Multitasking issues include;
- Too many apps and documents open at once
- Excessive clicking resulting in multiple unused copies of single apps, slowing performance
Operating System (Windows) Updates
- Automatic updates occur when the device connects to the Internet, providing fixes, features, and security improvements
- Cancelling updates is not recommended as updates improve device security
- Updates may require restarts and can automatically perform restarts during installation
- Essential that all software, including the OS, is kept current
Wrap-Up
- Users interact with the operating system before accessing any task-oriented software
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