How does memory management work?

Blocks of memory are allocated to applications or tasks as needed

What does a device driver do?

Acts as an interface between hardware and the OS

What is virtual memory?

Secondary storage used when RAM is full

When secondary and primary storage are constantly paged

What feature defines it as an RTOS?

Always responds to inputs almost instantly

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Operating Systems (L3)

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To support Level 3 BTEC unit 2 - Fundamentals of Computer Systems.

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Questions 12

Answers

1
How much memory can a 64-bit OS access?
16 TB
16 EB
16 MB
16 PB
2
How does memory management work?
Blocks of memory are allocated to applications or tasks as needed
Each task is randomly allocated memory
Each application is allocated one memory stick
The user decides how much memory each task needs
3
Utility software is there to benefit...
the world
the system
The user
The company
4
Windows 10 is an example of a
single-user multi-tasking OS
single-user single-tasking OS
multi-user single-tasking OS
multi-user multi-tasking OS
5
Multi-tasking allows an OS to...
run programs written in different languages
run several programs at once
access different hardware
have multiple cores on the CPU
6
What does a device driver do?
A device used in a bus
Allows programs to directly access RAM
Allows a computer to operate a car
Acts as an interface between hardware and the OS
7
What is virtual memory?
Secondary storage used when RAM is full
RAM to speed up disks
Memory used by VR headsets
Memory that is not real
8
In computing, what does RTOS stand for?
Resource Testing Optimised System
Real Time Operating System
Rapid Task Operating System
Recovery Testing Optical Solids
9
Which of these is NOT classed as utility software?
Spreadsheet software
Disk partitioning software
Disk error checking software
Anti-virus software
10
What is thrashing?
The noise made when a hard drive speeds up
When secondary and primary storage are constantly paged
When the system overheats because is running too fast
When the CPU is used at close to 100%
11
How much memory can a 32-bit OS access?
4 GB
16 TB
16 GB
4 TB
12
What feature defines it as an RTOS?
Always responds to inputs almost instantly
Allows lots of people to use it at once
Runs tasks faster than other OSs
Allows lots of programs to run at once

Operating Systems (L3) Flashcards | StudBud