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levacccp [35]
3 years ago
7

Consider an environment in which there is a one-to-one mapping between user-level threads and kernel-level threads that allows o

ne or more threads within a process to issue blocking system calls while other threads continue to run. Explain why this model can make multithreaded programs run faster than their single-threaded counterparts on a uniprocessor computer.
Computers and Technology
1 answer:
DENIUS [597]3 years ago
5 0

Explanation:

According to the situation mentioned in the question about the model that can make the multi threaded execution faster as compared with the single threaded counterparts programs because multi-threaded programs have the capability to execute simultaneously in multiple processes.

In this type of system ,the blocking system cannot block the complete execution because kernel thread is present for every user thread .So, if one kernel thread gets blocked , others will still keep running .

Whereas, for uni-processor system , the program has to wait for the input -output operation completion for most of the time.Thus, multi-threaded program can execute faster than uni-processor.

 

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File Letter Counter
Zanzabum

Answer:

The solution code is written in Python.

  1. fileName = input("Enter file name: ")
  2. target = input("Enter target character: ")
  3. with open(fileName, "r")as reader:
  4.    content = reader.read()
  5.    print(content.count(target))

Explanation:

Firstly, use <em>input() </em>function to prompt user for a file name. (Line 1)

Next, we use input() function again to prompt user input a target character (Line 2)

Create a reader object and user <em>read() </em>method to copy entire texts from to the variable<em> content </em>(Line 4 - 5).

At last we can get the number of times the specified character appears in the file using the Python string built-in method <em>count() </em>(Line 6)

5 0
4 years ago
Multiple boolean expressions can be combined by using a logical operator to create ________ expressions.
Licemer1 [7]
<span>Boolean expressions can be combined by using a logical operator to create compound expressions. A boolean expression is an expression that takes into account and evaluates specific data, which is in the form of true and/or false. A compound expression is merely a statement of expressions.</span>
8 0
3 years ago
Are there any Free programs that let's you use the GreenScrene? But, inside already made videos not while making the video.
Trava [24]
The programs I know that let you use the GreenScreen on already made videos is imovie and SonyVegas Pro. I know how hard it is to find friendly opinions from others so they can help you when trying to find Edit related programs for pictures and videos. I hope this helped.   
5 0
3 years ago
Write a program that reads a value (n) and outputs "hello world" n times. if the value is 3 , the output will be "hello world" p
den301095 [7]
Is the value read from user input or from a file? Also, what language?
6 0
4 years ago
Which pdu is processed when a host computer is de-encapsulating a message at the transport layer of the tcp/ip model?.
yulyashka [42]

The PDU that is processed when a host computer is de-encapsulating a message at the transport layer of the tcp/ip model is segment.

<h3>What is this PDU about?</h3>

Note that in the transport layer, a host computer is said to often de-encapsulate  what we call a segment so that they can be able to put back data to an acceptable or given format through the use of the application layer protocol that belongs to the TCP/IP model.

Therefore, The PDU that is processed when a host computer is de-encapsulating a message at the transport layer of the tcp/ip model is segment as it is the right thing to do.

Learn more about host computer from

brainly.com/question/553980

5 0
2 years ago
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