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3 years ago

Look at the following structure declaration.

Computers and Technology

1 answer:

myrzilka [38]3 years ago

7 0

Answer:

B. a tag

Explanation:

In the structure definition given below:

struct Employee

{

string name;

int idNum;

};

Employee corresponds to the tag of the structure. The tag is used to create additional instances of the structure. For example:

struct Employee e1;

struct Employee e2;

name and idNum are members of the Employee structure and are referenced using the dot notation. e.g.,

struct Employee e1;

e1.idNum=1;

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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

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

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4 0

2 years ago

An application programming interface (API) is ________. Select one: A. the code to interface between an application and RAM B. t

Olegator [25]

Answer:

An application programming interface (API) is the code the CPU recognizes to perform a procedure in an application.

Explanation:

An application programming interface (API) is the code the CPU recognizes to perform a procedure in an application. API allows an application to communicate with another application, or an operating system, database, network, etc.

An Application Programming Interface (API) creates a consideration for a problem and specifies how clients should interact with software components that implement a solution to that problem.

More recently, API has been used to refer to a specific type of interface between a client and a server, which has been described as a “contract” between both - such that if the client makes a request in a specific format, it will always get a response in a specific format or initiate a defined action.This is a specialized form of API, defined as a Web API.

3 0

3 years ago

The data-linking feature that allows Internet users to skip directly from a highlighted word to a related file in another comput

tamaranim1 [39]

Answer:

Hypertext

Explanation:

According to my experience on information technology, I can say that based on the information provided within the question the term being mentioned is called Hypertext. Like described in the question this term refers to a software system which shows as a highlighted piece of text that allows a user to immediately be taken to another system with information associated with the highlighted text that was clicked.

If you have any more questions feel free to ask away at Brainly.

5 0

3 years ago

Read 2 more answers

write a C program the prints out the size of variables with the following C data types- int, long, unsigned, long long, double,

Anit [1.1K]

<u>C program for finding size of different data types</u>

#include <stdio.h>

//driver function

int main()

{

int a; //declaring a of type int

float b; //declaring b of type float

double c; //declaring c of type double

char d; //declaring d of type char

long e; //declaring e of type long

long long f; //declaring f of type longlong

unsigned g; //declaring g of type unsigned

// Sizeof operator is used to evaluate the size of a variable

printf(" int data type contains: %lu bytes\n",sizeof(a));/*Finding size of int */

printf("float data type contains : %lu bytes\n",sizeof(b));/*Finding size of float */

printf("double data type contains: %lu bytes\n",sizeof(c));/*Finding size of double */

printf("char data type contains: %lu byte\n",sizeof(d));/*Finding size of char */

printf("long data type contains: %lu byte\n",sizeof(e));/*Finding size of long*/ printf("longlong data type contains: %lu byte\n",sizeof(f));/*Finding size of longlong */

printf("unsigned data type contains: %lu byte\n",sizeof(g)); /*Finding size of unsigned */

return 0;

}

<u>Output</u>

int data type contains: 4 bytes

float data type contains : 4 bytes

double data type contains: 8 bytes

char data type contains: 1 byte

long data type contains: 8 byte

longlong data type contains: 8 byte

unsigned data type contains: 4 byte

4 0

3 years ago

You want to find the distance between two points.

maks197457 [2]

Answer:

For the first picture, choose the second pair, and for the second one, choose the first pair

Explanation:

5 0

3 years ago