Answer:
Types of storage devices
Primary Storage: Random Access Memory (RAM) Random Access Memory, or RAM, is the primary storage of a computer. ...
Secondary Storage: Hard Disk Drives (HDD) & Solid-State Drives (SSD) ...
Hard Disk Drives (HDD) ...
Solid-State Drives (SSD) ...
External HDDs and SSDs. ...
Flash memory devices. ...
Optical Storage Devices. ...
Floppy Disks.
Answer:
x^2 * b^2
Explanation:
Like 3 squared times 2 squared is 3*3*2*2. Similarly the expression given in the question is equal to x*x*b*b. And that explains what is mentioned in question.
Answer:
The option(B) is the correct answer .
Explanation:
In C++ the // (two slash marks ) indicating the beginning of a comment .The two slash marks ( // ) comment the single line in a program.To use two slash marks ( // ) comment we simply write // in which line we have to make comment.
following are the example of code in c++
#include<iostream.h> // header file
void main() // main method
{
cout<< " india"; // print india
}
here // indicating the beginning of a comment .
Answer:
In Python:
import os.path
from os import path
fname = input("Filename: ")
if path.exists(fname):
with open(fname) as file_in:
lines = []
for line in file_in:
lines.append(line.rstrip('\n'))
f = open("stat.txt","r+")
f.truncate(0)
f = open("stat.txt", "a")
f.write("Names\tTotal\tSubjects\tAverage\n")
for i in range(len(lines)):
rowsum = 0; count = 0
nm = lines[i].split()
for j in nm:
if (j.isdecimal()):
count+=1
rowsum+=int(j)
average = rowsum/count
f.write(nm[0]+"\t %3d\t %2d\t\t %.2f\n" % (rowsum, count, average))
f.close()
else:
print("File does not exist")
Explanation:
See attachment for explanation where comments were used to explain each line
