All categories

2 years ago

The following is not an example of a character device:_____.

Computers and Technology

1 answer:

melisa1 [442]2 years ago

6 0

The following is not an instance of a character device: <u>mouse sound card.</u>

<h3>What is a char machine?</h3>

Character machines are devices that do not have physically addressable storage media, such as tape purposes or serial ports, where I/O is normally served in a byte stream.

<h3>What are feeling and block devices?</h3>

The block machines access the disk using the system's normal buffering mechanism. The surface devices provide for direct communication between the disk and the user's read or write buffer.

To learn more about Character machines, refer

brainly.com/question/25280941

#SPJ4

You might be interested in

Write an algorithm which gets a number A, if it is even, prints even, and if it is odd prints odd.

juin [17]

Answer:

The algorithm to find A is even or odd.

input A.
Check the remainder on diving by 2 by A%2.
If remainder is 1 then A is odd Print(Odd).
If remainder is 0 print(Even).

Explanation:

To check if the number is even or odd we use modulo operator(%).Which gives the remainder on dividing.So if we do this A%2 it will give the remainder that will come out on dividing the value of A by 2.

So if the remainder comes out is 1 then the number is odd and if the remainder is 0 then the number is odd.

7 0

3 years ago

Design and implement an algorithm that gets as input a list of k integer values N1, N2,..., Nk as well as a special value SUM. Y

satela [25.4K]

Answer:

Follows are the code to this question:

def FindPair(Values,SUM):#defining a method FindPair

found=False;#defining a boolean variable found

for i in Values:#defining loop for check Value

for j in Values:#defining loop for check Value

if (i+j ==SUM):#defining if block that check i+j=sum

found=True;#assign value True in boolean variable

x=i;#defining a variable x that holds i value

y=j;#defining a variable x that holds j value

break;#use break keyword

if(found==True):#defining if block that checks found equal to True

print("(",x,",",y,")");#print value

else:#defining else block

print("Sorry there is no such pair of values.");#print message

Values=[3,8,13,2,17,18,10];#defining a list and assign Values

SUM=20;#defining SUM variable

FindPair(Values,SUM);#calling a method FindPair

Output:

please find the attachment:

Explanation:

In the above python code a method, "FindPair" is defined, which accepts a "list and SUM" variable in its parameter, inside the method "found" a boolean variable is defined, that holds a value "false".

Inside the method, two for loop is defined, that holds list element value, and in if block, it checks its added value is equal to the SUM. If the condition is true, it changes the boolean variable value and defines the "x,y" variable, that holds its value.
In the next if the block, it checks the boolean variable value, if the condition is true, it will print the "x,y" value, otherwise, it will print a message.

6 0

3 years ago

You want to connect the LAN port on a router to the uplink port on a switch. The switch does not support auto-MDI. Which type of

kirza4 [7]

Answer: Crossover

Explanation:

Based on the information given in the question, the type of cable that should be used is the crossover cable.

Crossover cable is used for a direct connection of computing devices. A crossover cable is typically used for the connection of computing devices that are of identical types.

Since the LAN port on a router is to be connected to the uplink port on a switch and the switch does not support auto-MDI, the crossover cable can be used.

3 0

2 years ago

Write the code to produce a for loop that counts down from 20 to 0 by 2’s and prints the number each time it goes through the lo

yulyashka [42]

Explanation:

Count-controlled for loop (Three-expression for loop)

This is by far the most common type. This statement is the one used by C. The header of this kind of for loop consists of a three-parameter loop control expression. Generally it has the form:

for (A; Z; I)

A is the initialisation part, Z determines a termination expression and I is the counting expression, where the loop variable is incremented or dcremented. An example of this kind of loop is the for-loop of the programming language C:

for (i=0; i <= n; i++)

This kind of for loop is not implemented in Python!

Numeric Ranges

This kind of for loop is a simplification of the previous kind. It's a counting or enumerating loop. Starting with a start value and counting up to an end value, like for i = 1 to 100

Python doesn't use this either.

Vectorized for loops

They behave as if all iterations are executed in parallel. This means, for example, that all expressions on the right side of assignment statements get evaluated before the assignments.

Iterator-based for loop

Finally, we come to the one used by Python. This kind of a for loop iterates over an enumeration of a set of items. It is usually characterized by the use of an implicit or explicit iterator. In each iteration step a loop variable is set to a value in a sequence or other data collection. This kind of for loop is known in most Unix and Linux shells and it is the one which is implemented in Python.

Example of a simple for loop in Python:

>>> languages = ["C", "C++", "Perl", "Python"]

>>> for x in languages:

... print(x)

...

C++

Perl

Python

>>>

3 0

3 years ago

What are some ways to accomplish full-duplex (FDX) digital communications on guided medium at the physical layer (OSI Layer 1)?

labwork [276]

Answer:

d. All of the above

Explanation:

Physical layer is the lowest layer of the OSI reference model that deals with the setup of physical connection to the network and with transmission and reception of signals.

Full duplex (FDx) is a bidirectional type of communication system where two end nodes send and receive data signals at the same time, and a single carrier is simultaneously used for dual communication.

To send or receive data, the participating nodes in a Full Duplex system do not have to wait for a free carrier/medium. It employs a medium that has at least two internal channels - one for sending and one for receiving.

Based on the above explanations, options A, B and C are valid and are correct ways to accomplish full-duplex (FDX) digital communications on guided medium at the physical layer (OSI Layer 1). There all of them are correct.

6 0

2 years ago