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bezimeni [28]
2 years ago
13

All the read/write heads a hard disk are controlled by a(n) ____ which moves the read/write heads across the disk surfaces in un

ison. a. controller c. formatter b. actuator d. processor
Computers and Technology
1 answer:
Maru [420]2 years ago
5 0

Answer:  b. actuator

Explanation:

We know that a RW head ( or also known as read/write head) is a component of device which is usually appeared on the hard drive which is used to read and write data by the hard drive's disk . When data required to be read or write, the read/write arm is regulated by actuator.

[An actuator is a part of a device that is mainly responsible for moving and controlling a mechanism or system.]

Hence, All the read/write heads a hard disk are controlled by an actuator .

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Basics AutoCare is a small auto service business with two locations in a Midwest (U.S.) city. The business is based on providing
kogti [31]

Answer:

The ER diagram for the auto service is shown in the attachment.

5 0
3 years ago
Write a method called all Less that accepts two arrays of integers and returns true if each element in the first array is less t
GaryK [48]

Answer:

The program to this question can be given as:

Program:

#include<iostream> //header file

using namespace std; //using name space

bool allLess (int arr1[], int arr2[]) //defining method allLess  

{

int a,b; //define variable

a=  *(&arr1 + 1) - arr1; //hold length of arr1

b=  *(&arr2 + 1) - arr2; //hold length of arr2

if(a!=b) //checking condition  

{

return 1; //return value

}

for(int i=0; i<a; i++) //loop

{

if( arr1[i]>=arr2[i]) //checking condition

{

return 1; //return value

}

}

return 0; //return value

}

int main() //define main method.

{

   int arr1[]={1,2,3,4,5}; //define array arr1 and assign value.

   int arr2[]={4,5,6,7,8}; //define array arr2 and assign value.

   cout<< allLess(arr1,arr2); //function calling

   return 0;

}

Output:

1

Explanation:

The Explanation of the C++ language program can be given as follows:

  • In the above program firstly we include the header file. Then a method is defined that is "allLess" this method accepts two arrays that are "arr1 and arr2". This function returns a boolean value that is true or false.
  • Inside a function, we define a conditional statement and a loop in the if block we check the length of the arr1 array variable is not equal to arr2 array length. if this condition is true it will return false.
  • In the loop, we define another if block in this block we check that if arr1 array elements are grater then equal to arr2 array element if this condition is true it will return false. At the end of both if block and loop the function will return a value that is "true".
  • In the main method, we define two arrays and pass to the function and use (cout function) for print return value.
8 0
3 years ago
Calls to the tostring( ) method emphasize the use of ____.
DaniilM [7]
<span>Polymorphic message
   
Methods in different classes with a similar function are given the same name. - Makes classes easier to use because programmers need to remember fewer method names. - Employed as much as possible. - Polymorphic message ex. is the toString method.</span>
5 0
2 years ago
Analyze the code and identity the value of variable a,b and c after the code execution. int a=40, b=50, c=60; if(! (a&gt;=40)) b
AlekseyPX

Answer:

a=40,b=30,c=60

The answer is B

7 0
3 years ago
An application team plans to follow the 10-phase SDLC model. After the team identifies both functionality and security requireme
Valentin [98]

Answer:

The team did not adequately formalize the software's design

Explanation:

The most logical reason for this confusion is the fact that the team did not adequately formalize the the software design.

The design approach has to do with clearly defining the architectural modules of the application. The requirements in the software requirement specification document would serve as input for the next phase. The documents are prepared and they give a definition of the overall system architecture.

The team got confused because they did not go through this phase of the 10-phase SDLC model.

3 0
2 years ago
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