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3 years ago

2.

Computers and Technology

1 answer:

loris [4]3 years ago

3 0

Answer:

Both a & b 

A. 3 seconds 

B. 4 seconds

Explanation:

3 seconds rule is to be followed when the road is dry. So it means that we are very close to the vehicle which is in the front and we need to adjust the speed of the vehicle so that we maintain atleast 3 seconds delay with the front vehicle. It is one of the safety aspect / traffic rule to be learnt.

4 seconds rule is to leave 4 seconds gap between our vehicle and the vehicle which is moving front. This is done so that we don’t dash the vehicle if the front vehicle has to be stopped immediately and we have breathing time to put the break. It is mainly used in frosty climate.

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Design a module named getNumber, which uses a reference parameter variable to accept an Integer argument. The module should prom

Sergeu [11.5K]

Explanation:

Module getNumber (Integer Ref Value)

Display "Display a number"

Input number

End module

Module main ()

Declare Integer number x = 1

Declare Real number y = 2.5

Display( x, " " ,y)

Call changeUS (x,y)

Display( x, " " ,y)

End module

5 0

3 years ago

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

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

Which is an example of a zero-point perspective?

kap26 [50]

i think its b sorry if wrong

4 0

3 years ago

Points!!!!!!!! pls help

siniylev [52]

D. Rasterize

This answer makes the most since

7 0

3 years ago

Read 2 more answers

You recently purchased a new laptop for home. You want to ensure that you are safe from malware. You should install a personal _

german

Answer:

You should install a personal firewall, a program that protects your computer from unauthorized access by blocking certain types of communications.

Explanation:

In computing, a firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. A firewall typically establishes a barrier between a trusted internal network and untrusted external network, such as the Internet.

8 0

3 years ago