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The operating system may access memory without restriction (as opposed to user mode where memory
access is highly regulated by the OS… we hope). When the data is in memory the OS must be careful to
ensure that it is only accessing data that it needs to, since carelessness might result in overwriting data
pertaining to still-running user mode functions, breaking their operating when the OS shifts scope from
kernel mode back to user mode.
Titany answered the question on April 25, 2022 at 13:50
- Using a simple system call as an example (e.g. getpid, or uptime), describe what is
generally involved in providing the result, from the point of...(Solved)
Using a simple system call as an example (e.g. getpid, or uptime), describe what is
generally involved in providing the result, from the point of calling the function in the C
library to the point where that function returns
Date posted: April 25, 2022. Answers (1)
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Describe the two general roles of an operating system, and elaborate why these roles are
important
Date posted: April 25, 2022. Answers (1)
- A computer had the following characteristics:
- Artificial intelligence
- Connectivity to the internet
- Superior hardware and software (i.e. high processing speed and storage capacity)
- Low emission...(Solved)
A computer had the following characteristics:
- Artificial intelligence
- Connectivity to the internet
- Superior hardware and software (i.e. high processing speed and storage capacity)
- Low emission of heat
- Smaller in size
State the generation described above.
Date posted: July 23, 2021. Answers (1)
- Name three non electronic tools that were used before the invention of electronic computers.(Solved)
Name three non electronic tools that were used before the invention of electronic computers.
Date posted: July 23, 2021. Answers (1)
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i. ICT
ii. CPU
iii. VLSI
iv. UPS(Solved)
Write the following acronyms in full.
i. ICT
ii. CPU
iii. VLSI
iv. UPS
Date posted: July 23, 2021. Answers (1)
- Give the correct name for the following descriptions.
i. A device that process user input to give out an output that is meaningful to the user.
ii....(Solved)
Give the correct name for the following descriptions.
i. A device that process user input to give out an output that is meaningful to the user.
ii. Raw facts that do not have much meaning to the user.
iii. The result obtained after processing.
Date posted: July 23, 2021. Answers (1)
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Define the term troubleshooting as used in operating systems.
Date posted: July 23, 2021. Answers (1)
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Explain how you can partition a hard disk into partitions.
Date posted: July 23, 2021. Answers (1)
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What is a startup disk?
Date posted: July 23, 2021. Answers (1)
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Explain how you would create backup using Windows back-up using utility.
Date posted: July 23, 2021. Answers (1)
- You have realized that your floppy disk is limited in storage space and you would wish to create more space.
Which tool in Windows would you...(Solved)
You have realized that your floppy disk is limited in storage space and you would wish to create more space.
Which tool in Windows would you use?
Date posted: July 23, 2021. Answers (1)
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Explain how you would move the taskbar to the top of the desktop.
Date posted: July 23, 2021. Answers (1)
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Define the start menu and explain the common start menu items.
Date posted: July 23, 2021. Answers (1)
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Draw the information organization tree diagram.
Date posted: July 23, 2021. Answers (1)
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Outline the factors that dictate how an Operating system organizes information.
Date posted: July 23, 2021. Answers (1)
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Name and explain three types of human computer interfaces.
Date posted: July 23, 2021. Answers (1)
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Describe the Menu driven interface.
Date posted: July 23, 2021. Answers (1)
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Describe the Command line interface.
Date posted: July 23, 2021. Answers (1)
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State the disadvantages of command line interface.
Date posted: July 23, 2021. Answers (1)
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State the advantages of command line interface.
Date posted: July 23, 2021. Answers (1)