Who is the father of computer?

More registers appear to be a good thing, in terms of reducing the total number of memory accesses a program might require. Give

gulaghasi [49]

Answer:

Following is given the answer step by step:

Explanation:

First of all we will write a program using MARIE that will support the statement: Sum = (A + B) - (C + D). All the necessary comments are given in front of each statement:

Load A # variable A will be loaded

Add B # B will be added to A

Store Temp1 # A + B will be stored in Temp1

Load C # C will be loaded in memory

Add D # D will be added to C

Store Temp2 # C + D will ge stored in Temp2

Load Temp1 # Temp1 will be loaded in the memory

Subt Temp2 # Temp2(A + B) get subtracted from Temp1(A - B)

Store Sum # (A + B) - (C + D) will get stored in Sum.

We can see from above program that memory is accessed 9 times. While if C + D get executed first than memory accesses will be reduced to 7.

Above same program could be written using an architecture of 4 registers:

R1
R2
R3
R4

The program is as follows:

Load R1 , A #A will be loaded into R1

Load R2 , B # B will be loaded into R2

Add R1 , R2 # R2 gets added to R1 and the result is stored in R1 (A + B)

Load R3 , C # C loaded into R3

Load R4 , D # D loaded into R4

Add R3 , R4 # Value in R4 gets added into R3 and R3 becomes (C + D)

#no memory accesses required for this operation

Subt R1 , R4 #R4 (C + D) gets subtracted from R1 (A + B)

#no memory accesses required for this operation

Store Sum # The recent value will be stored into Sum

Here memory is accessed 5 times in total.

8 0

3 years ago

Which of the following actions is most likely to be effective in reducing the digital divide at a local level? A Creating an app

Mekhanik [1.2K]

Answer: C

Explanation:

4 0

3 years ago

The ________ function reads a piece of data that has been entered at the keyboard and returns that piece of data, as a string, b

Ivenika [448]

The input function reads a piece of data that has been entered at the keyboard and returns that piece of data, as a string, back to the program. This function is designed to accept data directly from the user, Similar function is the function raw_input() used in Python programming, which asks the user for a string of data (ended with a newline), and simply returns the string.

4 0

3 years ago

Read 2 more answers

Create a base class named rectangle that contains lenght and width data members.

kumpel [21]

Answer:

class Rectangle:

def __init__(self, length, width):

self.length = length

self.width = width

def area(self):

area = self.length*self.width

return area

class Box (Rectangle):

def __init__(self, length, width, height):

super().__init__(length, width)

self.height = height

def volume(self):

volume = self.length * self.width * self.height

return volume

def area(self):

area = 2*(self.length*self.width) + 2*(self.length*self.height) + 2*(self.width*self.height)

return area

rec_1 = Rectangle(2,4)

box_1 = Box(2,2,6)

print(box_1.length)

print(box_1.area())

print(rec_1.length)

print(rec_1.area())

Explanation:

The programming language used is python.

class Rectangle

The class Rectangle is created with attributes length and width.

The class attributes are initialized using the __init__ constructor.

In the rectangle class, a method/function is declared to return the area of the rectangle.

class Box

This class is a child of rectangle and it inherits all its attributes and methods,

It has an additional attribute of depth and its constructor is used to initialize it.

The class contains a volume function, that returns the volume and an override function 'area()' that displaces the area from the parent class.

Finally, some instances of both classes are created.

4 0

4 years ago

What are the set of rules to move data from one computer to another?

ss7ja [257]

I don't believe that there are rules.
Hope I helped,
Ms. Weasley

4 0

3 years ago

Who is the father of computer?​

Who is the father of computer?