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3 years ago

Write a note on secondary storage

1 answer:

8 0

Answer: Storage devices are non-volatile devices. That means that when the power is removed from them, for example, when you switch your computer off, they retain their contents (unlike RAM, which is volatile – it loses its contents). You can then retrieve the contents next time you switch your computer on. Storage devices can be used to hold operating systems, applications and files, amongst other types of software. They are simply big suitcases – used only for storage. We have already seen that when you want to use an application kept on a storage device, it has to be moved to RAM before you can start using it. This applies to the operating system, your files and any other category of software. For this reason, RAM is sometimes known as Primary Memory whereas storage devices are often referred to as Secondary Storage devices.

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Suppose we wanted to make change for purchases and wanted to use the least number of coins possible. Here is a greedy algorithm:

love history [14]

Answer:

Explanation:

The following code is a Python function that takes in the amount of change. Then it uses division and the modulo operator to calculate the number of coins that make up the changes, using the greatest coin values first.

import math

def amountOfCoins(change):

print("Change: " + str(change))

quarters = math.floor(change / 0.25)

change = change % 0.25

dimes = math.floor(change / 0.20)

change = change % 0.20

pennies = math.floor(change / 0.01)

print("Quarters: " + str(quarters) + "\nDimes: " + str(dimes) + "\nPennies: " + str(pennies))

5 0

3 years ago

Individuals and businesses have concerns about data security while using Internet-based applications. Which security risk refers

Katen [24]

Answer:

Spam

Explanation:

If you receive in bulk the unsolicited messages, then that does mean that your inbox is being spammed. This will not harm you but you will lose the Gb that is allocated to your mailbox. And if you will not check then your mailbox will soon be full, and you might not receive some of the important messages that you should reply to immediately.

6 0

3 years ago

IN PYTHON LANGUAGE

shtirl [24]

favorite_color = input("Enter favorite color:\n")

pet = input("Enter pet's name:\n")

num = input("Enter a number:\n")

print("You entered: "+favorite_color+" "+pet+" "+num)

password1 = favorite_color+"_"+pet

password2 = num+favorite_color+num

print("First password: "+password1)

print("Second password: "+password2)

print("Number of characters in "+password1+": "+str(len(password1)))

print("Number of characters in "+password2+": "+str(len(password2)))

This works for me.

8 0

2 years ago

Read 2 more answers

How do I give Brainliest?? I'll give brainliest...

Elodia [21]

Can i have it don’t think i ever got one

8 0

2 years ago

Read 2 more answers

Question: define oprators

Svetlanka [38]

Answer:

Explanation:

Operator can be defined as

a character or characters which gives determination of actions that are needed to be performed/ considered. Operators are symbols that gives the compiler information to perform specific mathematical/logical manipulations.They are special type of functions, which are capable of taking one or more arguments, then produces a new value. Different types of operator are;

✓arithmetic operators(addition "+" substraction "-"

✓relational operators( greater than ">"

lesser than"<"

✓Logical operators.( Connective words/symbols such as AND, NOT, OR)

Arithmetic Operators: These include "+" (addition), "-" (subtraction), "*" (multiplication), "/" (division), "\" (integer

5 0

2 years ago

Write a note on secondary storage​

Write a note on secondary storage