Can somebody plz explain this question to me?

What are two options available for highlighting changes in the Highlight Changes dialog box?

lukranit [14]

Answer: D

Within a specific time period or by a specific user

Explanation:

4 0

2 years ago

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A user complains that his computer automatically reboots after a short period of time. Which of the following computer component

Oduvanchick [21]

Answer:

The answer is "option a".

Explanation:

To resolve the automatic reboot problem we must change the CPU cooling fan because if we don't change a computer fan so, it will be heated and damage other components. This cooling fan used inside the CPU. It expels warm air from inside and moves air across the particular component. and other options are not correct that can be described as:

In option b, power supply is used to turn on the computer. It is not used to solve the reboot problem.
In option c, Motherboard is to serve as the base upon which a computer's components are built.
In option d, It is primarily used to store the data.

6 0

2 years ago

What are four differences between tablets and smartphones?

Oksi-84 [34.3K]

Answer:

1. tablets are less portable than smartphones

2. smartphones are considered necessities and tablets are considered luxuries

3. smartphones are personal devices; tablets are usually shared

4. Tablets have larger screens for more extensive use of applications as opposed to the smaller, less versatile mobile phone screens.

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2 years ago

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Computer system with a 32-bit logical address and 4k-byte page size. assume that each entry of a page table consists of 4bytes.

Annette [7]

The number of bits in the physical address is 26 bits. The number of entries in a page table is $\mathbf{2^{20}}$ entries. The size of the page table in a one-level paging scheme is 4MB.

<h3>
What is paging in Operating System?</h3>

Paging is a storage method used in operating systems to recover activities as pages from secondary storage and place them in primary memory. The basic purpose of pagination is to separate each procedure into pages.

We are given the following parameters:

32-bit logical address
Page size = 4 KB = $\mathbf{2^{12} \ bytes }$
Size of each Page table entry = 4 bytes

Suppose the system supports physical memory size = 64 MB = $\mathbf{2^{26} \ bytes}$

Thus, the number of bits in the physical address is computed as:

= $\mathbf{log_2 \{Physical-memory-size\}}$

$=\mathbf{log_2(2^{26})}}$

= 26 bits

The number of entries in a page table = logical address space size/page size

The number of entries in a page table $\mathbf{= \dfrac{2^{32}}{2^{12}}}$

$\mathbf{=2^{20}}$ entries

In a one-level paging scheme, the size of the table is:

= entire no. of page entries × page table size

= $\mathbf{2^{20}\times 4 \ bytes}$

= 4 MB

b.

suppose that this system supports up to 2^30 bytes of physical memory.

The size of the page table will be the same as 4 MB due to the fact that the number of entries, as well as, the page table entry size is the same.

Since the size of the page table surpasses that of a single page. A page cannot include a whole page table. Therefore, the page table must be broken into parts to fit onto numerous pages, and an additional level of the page table is required to access this page table.

This is called the Multi-Level Paging system.

Therefore, we can conclude that the number of bits in the physical address is 26 bits, the number of entries in a page table is $\mathbf{2^{20}}$ entries, and the size of the page table in a one-level paging scheme is 4MB.

Learn more about Paging in Operating System here:

brainly.com/question/17004314

#SPJ1

4 0

1 year ago

The true or false questions.

tankabanditka [31]

Answer:

false

Explanation:

-exec option is not mandatory for the find command.

find will still list out the identified files even in the absence of -exec option.

For example:

find . -name test -print

will print out files with the name 'test' in the current directory. Note that there is no exec option in this example.

Same holds true for find with no additional options at all.

For example:

find .

will list out all files in the current directory.

3 0

3 years ago