Why is it important to evaluate the website on which you plan to shop?

Why is accessing a disk block expensive? discuss the time components involved in accessing a disk block. (?

Dahasolnce [82]

Answer:

Explanation:

A disk block works by transferring data between the disk and main memory units which are called the blocks, whose size can range drastically from 512 bytes to several thousand. This data is converted to hardware-level cylinder, surface, and sector number which makes accessing the data immensely slower than accessing data in the main memory. This time constraint is also the main reason as to why accessing a disk block is so expensive.

6 0

3 years ago

Discuss the advantages and disadvantages of using a USB or parallel port dongle for licensing purposes.

Dafna11 [192]

An advantage is portability A disavantage is loseability An advantage is faster read and write speeds(most of the time) a disavantge is less storage

4 0

3 years ago

Read 2 more answers

Please help me to creat flow chart tq

Marina CMI [18]

Using the knowledge in computational language in C it is possible to write a code that uses a class called "books". Data members of this class are author, title, price, publisher and stock position.

<h3>Writting the code in C++</h3>

#include<iostream.h>

#include<conio.h>

#include<stdio.h>

#include<string.h>

//declaration of class books

class books

{

//data members of books class

public:

char author[20];

char title[20];

char publisher[50];

int price;

int copies;

int stock;

//setData() function to set data of books

void setData()

{

cout<<"\nEnter the following details:\nAuthor's Name:";

gets(author);

cout<<"\nTitle :";

gets(title);

cout<<"\nPublisher :";

gets(publisher);

cout<<"\nPrice :";

cin>>price;

cout<<"\nNumber of copies:";

cin>>copies;

stock=1;

}

//check() function to check if a book is available or not

void check()

{

char t[20],aut[20];

int cop;

cout<<"\nEnter the following details to search for book:\n";

cout<<"\nTitle of the book:";

gets(t);

cout<<"\nEnter Author's Name :";

gets(aut);

cout<<"\nNumber of copies:";

cin>>cop;

if(strcmp(t,title) & strcmp(aut,author) & (cop<=copies))

{

cout<<"\nBook is availabe in store\nPrice = "<<cop*price;

copies-=cop;

}

else

{

cout<<"Not available";

}

};

void main()

{

clrscr();

books bk;

bk.setData();

bk.check();

getch();

}

See more about C code at brainly.com/question/17544466

#SPJ1

4 0

1 year ago

The number of arguments does not need to match the number in the parameter list when you use ____. 19. When can a method be call

photoshop1234 [79]

<h2>Only when the default parameter are defined in the function</h2>

Explanation:

Answer is same for both the question.

A default argument or default parameter is assigned an automatic value when the function is invoked.

So the default value will be assigned during the function definition itself.

You can find the assignment operator which is being used in the function definition.
You can overwrite the default values by passing your own value in the calling portion
The constraint here is that, the default parameter should always be the last parameter of function definition to avoid ambiguity.

3 0

3 years ago

Write the definition of a void function that takes as input two integer values, say n and m. The function returns the sum and av

hodyreva [135]

Answer:

void mn(int m, int n){

int sum = 0;

int count = 0;

if(m<n){

for(int i = m;i<=n;i++){

sum+=i;

}

else{

for(int i = n;i<=m;i++){

sum+=i;

}

count = abs(m - n)+1;

cout<<"Sum: "<<sum<<endl;

cout<<"Average: "<<(float)sum/count;

}

Explanation:

This line defines the method

void mn(int m, int n){

This initializes sum and count to 0

int sum = 0;

int count = 0;

This checks if m is less than n

if(m<n){

This iterates from m to n and calculates the sum of numbers between this interval

for(int i = m;i<=n;i++){

sum+=i;

}

If otherwise,

else{

This iterates from n to m and calculates the sum of numbers between this interval

for(int i = n;i<=m;i++){

sum+=i;

}

This calculates the range from m to n using absolute function

count = abs(m - n)+1;

This prints the calculated sum

cout<<"Sum: "<<sum<<endl;

This calculates and prints the average

cout<<"Average: "<<(float)sum/count;

}

See attachment for complete program that includes the main (in c++)

Download cpp

7 0

3 years ago