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4 years ago

What tasks do most operating systems perform?

Computers and Technology

1 answer:

umka2103 [35]4 years ago

8 0

Answer:

The most operating system perform these task that can be given as:

Allocating RAM to open programs.

Creating and maintaining the FAT .

Coordinating the interaction between hardware and software.

Displaying the GUI .

Explanation:

The description of these task as follows:

Allocating ram to open program: RAM stands for Random Access Memory in the operating system when we on the computer system so the operating system first load some file that use the ram because it is volatile memory. It works when the system is on.

Creating and maintaining the FAT : FAT stands for File Allocation Table. This file stored in the hard drive that usually support 12 or 16-bit cluster for insert data into FAT. This file is only used by the operating system for creating and manages files.

An operating system works as an interface between computer hardware and the user. It is a System software that coordinates between hardware and software.
Displaying the GUI: The term GUI stands for graphical user interface. It is a feature of operating systems that provide the GUI mode. In this mode, the user can understand things more easily.

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3 years ago

Write a program to take in a time-of-day on the command-line as 3 integers representing hours, minutes, and seconds, along with

nexus9112 [7]

Answer:

In Python:

hh = int(input("Hour: ")) * 3600

mm = int(input("Minutes: ")) * 60

ss = int(input("Seconds: "))

seconds = int(input("Additional Seconds: "))

time = hh+ mm + ss + seconds

hh = int(time/3600)

time = time - hh * 3600

mm = int(time/60)

ss = time - mm * 60

while(hh>24):

hh = hh - 24

print(str(hh)+" : "+str(mm)+" : "+str(ss))

Explanation:

We start by getting the time of the day. This is done using the next three lines

hh = int(input("Hour: ")) * 3600

mm = int(input("Minutes: ")) * 60

ss = int(input("Seconds: "))

Then, we get the additional seconds

seconds = int(input("Additional Seconds: "))

The new time is then calculated (in seconds)

time = hh+ mm + ss + seconds

This line extracts the hours from the calculated time (in seconds)

hh = int(time/3600)

time = time - hh * 3600

This line extracts the minutes from the calculated time (in seconds)

mm = int(time/60)

This line gets the remaining seconds

ss = time - mm * 60

The following iteration ensures that the hour is less than 24

while(hh>24):

hh = hh - 24

This prints the calculated time

print(str(hh)+" : "+str(mm)+" : "+str(ss))

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Answer:

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2 years ago

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Answer:

Explanation:

def octal_to_string(octal):

result = ''

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for c in [int(n) for n in str(octal)]:

for value, letter in value_letters:

if c >= value:

result += letter

c -= value

else:

result += '-'

return result

print(octal_to_string(755))

print(octal_to_string(644))

print(octal_to_string(750))

print(octal_to_string(600))

**************************************************

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Answer:

Explanation:

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