1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
alisha [4.7K]
3 years ago
7

Que es una red de datos

Computers and Technology
2 answers:
nadya68 [22]3 years ago
7 0

Answer:

La red de datos es un sistema diseñado para transferir datos desde un punto de acceso a la red a otro o más puntos de acceso a la red a través de la conmutación de datos, las líneas de transmisión y los controles del sistema.

LenaWriter [7]3 years ago
7 0

Answer:

donde se guarda information o a dode sebuca

You might be interested in
Read the paragraph.
aleksandrvk [35]

Answer:

I think sentence 3 bc it doesn't really make any sense Ik it's explaining it but it doesnt connect with the whole story as much I think it has to have more details

5 0
3 years ago
Read 2 more answers
Write a C program (doublecopy) that allows a user to extract some part of an existing file (fileSource) and copy it twice to a n
Slav-nsk [51]

Answer:

Check the explanation

Explanation:

#include <stdio.h>

#include <sys/stat.h>

#include <stdlib.h>

#include <fcntl.h>

#include <errno.h>

#include <unistd.h>

extern int errno;

struct stat st;

int main(int argc, char **argv){

  int num1 = atoi(argv[1]); // Getting num1 from user

  int num2 = atoi(argv[2]); // Getting num2 from user

  char *fileSource = argv[3];

  char *fileTarget = argv[4];

 

  int source_fd = open(fileSource, O_RDONLY); // opening the file in read only mode

  int target_fd = open(fileTarget, O_WRONLY | O_CREAT); // opening the target file in Writeonly mode if file is not found it will create

   

  char *ch = (char *) calloc(num2+num1, sizeof(char));

 

  stat(fileSource, &st);

  if(st.st_size < (num1 + num2)){

      printf("File Size is smaller than the specified bytes\n");

      read(source_fd, ch, st.st_size); // reading the file upto the end

      write(target_fd, ch, st.st_size); // write to the file

      write(target_fd, ch, st.st_size); // two times writing to the file

  }else{

      if(lseek(source_fd, (off_t)num1, SEEK_SET) < 0 ) // moving the cursor to after the specified bytes from the start

      {

          printf("Some Error occured while seeking the file");

          return -1;

      }

      read(source_fd, ch, num2); // reading num2 bytes from the source

      write(target_fd, ch, num2); // writing two times to the target

      write(target_fd, ch, num2);

     

  }

 

  return 0;

 

}

1 2 #include <stdio.h> #include <sys/stat.h> #include <stdlib.h> #include <fcntl.h> #include <errno.h> #include <unistd.h> 4

The code screenshot and code output are attached below.

3 0
3 years ago
What was the first Apple computer, and who was it designed by?
DerKrebs [107]

Answer: The first Apple Computer was Apple 1. The designer was Steve Wozniak.

Explanation: Steve Wozniak and Steve Jobs both created Apple 1. Mainly, Steve Wozniak designed it.

Hope this helps!

7 0
3 years ago
Read 2 more answers
In the original UNIX operating system, a process executing in kernel mode may not be preempted. Explain why this makes (unmodifi
Elena L [17]

Answer:

the preemption is -> The ability of the operating

system to preempt or stop a currently

scheduled task in favour of a higher priority

task. The scheduling may be one of, but not

limited to, process or 1/0 scheduling etc.

Under Linux, user-space programs have always

been preemptible: the kernel interrupts user

space programs to switch to other threads,

using the regular clock tick. So, the kernel

doesn't wait for user-space programs to

explicitly release the processor (which is the

case in cooperative multitasking). This means

that an infinite loop in an user-space program

cannot block the system.

However, until 2.6 kernels, the kernel itself was

not preemtible: as soon as one thread has

entered the kernel, it could not be preempted to

execute an other thread. However, this absence

of preemption in the kernel caused several

oroblems with regard to latency and scalability.

So, kernel preemption has been introduced in

2.6 kernels, and one can enable or disable it

using the cONFIG_PREEMPT option. If

CONFIG PREEMPT is enabled, then kernel code

can be preempted everywhere, except when the

code has disabled local interrupts. An infinite

loop in the code can no longer block the entire

system. If CONFIG PREEMPT is disabled, then

the 2.4 behaviour is restored.

So it suitable for real time application. Only

difference is we don't see many coders using it

5 0
3 years ago
Assume the following variables are defined: int age; double pay; char section; write a single c instatement that will read input
JulsSmile [24]

Answer:

scanf("%d %lf %c", &age, &pay, &section);

Explanation:

To read the value in c program, the instruction scanf is used.

To read the integer value, use the %d format specifier in the scanf and corresponding variable name age with ampersand operator.

To read the double value, use the %lf format specifier in the scanf and corresponding variable name pay with ampersand operator.

To read the character value, use the %c format specifier in the scanf and corresponding variable name section with ampersand operator.

5 0
3 years ago
Other questions:
  • Write a program that estimates the approximate number of times the user’s heart has beat in his/her lifetime using an average he
    12·1 answer
  • 1. Create a view named customer_addresses that shows the shipping and billing addresses for each customer.
    15·1 answer
  • Colin Mackay Inc., a software company with its head office in Amsterdam, has employees across three continents. The company's pr
    10·1 answer
  • Impanation stage contain ​
    10·1 answer
  • 2. Given the following list, write a snippet of code that would print the individual elements of the list using the indexes of t
    13·1 answer
  • (01.05 LC)
    7·2 answers
  • What was your learning target for today
    9·2 answers
  • To configure a router/modem, what type of IP interface configuration should you apply to the computer you are using to access th
    10·1 answer
  • What is the complete path and filename of the file where ports and their associated protocols are defined
    12·1 answer
  • allows users to enter text and control the computer with their voice.allows users to enter text and control the computer with th
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!