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Alex
3 years ago
14

Which of the following is true regarding Moore’s Law? A.) explained the growth in computing capabilities between 1965 and 1995 B

.)states that processing power doubles every two years C.)is likely to continue accurately predicting growth for the foreseeable future D.)designed to predict the growth in computing capabilities resulting from the use of quantum computers
Computers and Technology
1 answer:
liraira [26]3 years ago
3 0

answer is B :)

Moore's Law states that we can expect the speed and capability of ... will double about every two years

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In a batch operating system, three jobs are submitted for execution. Each job involves an I/O activity, CPU time and another I/O
Ilia_Sergeevich [38]

Answer:

a) CPU utilization for uniprogramming system = 18.2%

b) CPU utilization for multiprogramming system = 41.379%

Explanation:

IO time = total time – CPU time

For JOB 1  

CPU time = 3ms ,

total time= 23ms

IO time = 23-3 = 20ms ,

For JOB 2

CPU time =5ms

total = 29ms

IO time = 29-5 = 24ms  

For JOB 3  

CPU time = 4ms

total = 14ms

IO time = 14-10 =10ms  

1.) In uniprogramming system, operations are performed sequentially

CPU utilization=total CPU time / total real time

CPU utilization =(3+5+4) / (23+29+14)

CPU utilization =0.182 or 18.2%

2) In multiprogramming system, jobs wait for the CPU to get free while performing IO operations concurrently

steps followed by the os

1. IO for 1st job                           at 0ms

2. IO for 2nd job                          at 0ms

3. IO for 3rd job                          at 0ms

4. CPU time for 3rd job              at 5ms

5. Next IO job for 3rd job           at 9ms END at 14ms

6. CPU time for 1st job              at 9ms

7. Next IO job for 1st job           at 14ms END at 23ms

8. CPU time for 2nd job             at 14ms

9. Next IO job for 2nd job          at 15ms END at 29ms

CPU time is 3+5+4 =12ms

Total execution time = 29ms

CPU utilization = 12*100/29= 41.379%

5 0
3 years ago
Which term describes the second core IPSec security protocol; it can perform authentication to provide integrity protection, alt
Sphinxa [80]

Answer:

Encapsulating Security Payload (ESP)

Explanation:

Encapsulating Security Payload is also known as ESP, it is a protocol that exists within IPSec, it helps in determining the authentication, integrity and how confidential network pack data / Payload in IPV4 and IPV6 networks are.

ESP supplies messages /Payload encipher, it also helps in authenticating Payload as well as where it originated from in the IPSec protocol suite.

6 0
3 years ago
Write C++ code to open a document with the name Hello.txt, place the message "Hello, World!" in the document, and exit the docum
gavmur [86]

Answer:

#include<iostream>

#include<fstream>

using namespace std;

int main()

{

ofstream out;

out.open("Hello.txt");

out << "Hello, World!"<< endl;

out.close();

ifstream in;

in.open("Hello.txt");

while(in.good()){

   string line;

   in >> line;

   cout << line << endl;

   

}

in.close();

return 0;

}

Explanation:

Step 1:

Add all your preprocessor files directive,  #include is known as the preprocessor  is used to load files needed to run the code.

#include<iostream>: it provides basic input and output services for C++ programs.

#include<fstream>:used to open a file for writing and reading

using namespace std; means you'll be using namespace std means that you are going to use classes or functions (if any) from "std" namespace

Step 2:

ofstream out; <em>his  is  used  to  create  files  and   write data to the file</em>

out.open("Hello.txt"); <em>  a new file "HELLO.txt" has been created</em>

out << "Hello, World!"<< endl;  "<em>Hello World!" has now been writen to the file</em>

out.close(); <em>The file is now closed</em>

<em>This second step opens a new file and writes hello world to the file then closes it.</em>

Step 3:

<em>ifstream in; ifstream in c++ is a stream class which stands for input file stream a  is used for reading data from file.</em>

in.open("Hello.txt"); <em>Reopens the file without recreating it. This is a very important step because if not done properly, you might discard the file you previously created and recreate it.</em>

while(in.good()){

<em> in.good() is true if the previous read operation succeeded without EOF being encountered</em>

   string line; <em>It declares a string variable line</em>

   in >> line; <em>reads the data into the line variable</em>

   cout << line << endl; <em>Prints out the line</em>

<em>reopens the file and read the message into a string variable "line".  prints out line then exits out of the file.</em>

5 0
3 years ago
A database program helps to ____________.
Juliette [100K]
D. A database is software which is designed to store massive amounts of data and organize them in such a way that information can easily be worked on (added, deleted, moved, etc...).
8 0
3 years ago
Read 2 more answers
Azzam is reviewing a paper he just wrote about kinetic friction for his physics class. On the third page, he realizes that every
bogdanovich [222]

Answer: Azzam used the tool while he was on the third page

Explanation:

The most likely the reason why the phrase was not fixed is because Azzam used the tool while he was on the third page.

This can be infered from the information given when we're told that he uses the Find and Replace tool and clicks on "Replace All" to fix the issue with regards to the error that he made and thus was done from the third page. Therefore, the tool might not have worked for the first page.

4 0
3 years ago
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