Here are the main functions of an operating system:
1) Manage the resources of the device
The operating system controls how much of each resource is distributed, and it controls things like the processing unit and memory.
2) Establish a interface for the user of the device
The operating system must classify what the classes of the script/code have to do and what they implement.
3) Service application software
The operating system must service each application that is downloaded onto the device. It must balance it's use of storage between apps.
Answer:
To make the group of four we can write 100011 as 00100011
Now, the two groups are:- 0010 and 0011
And 0010 in binary corresponds to 3 in Hexadecimal
And 0011 in binary corresponds to 4 in Hexadecimal.
So, 100011 of binary corresponds to 34 of hex.