Operating Systems

4.1 Types of software and interrupts
4.1.2 Operating systems
Watch the video for Operating systems
https://www.youtube.com/watch?v=4HyZd3X3d5c

Craig'n'Dave

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4.1 Types of software and interrupts
4.1.2 Operating systems
To enable computer systems to function correctly and allow users to communicate with computer systems, software known as an
operating system needs to be installed. An operating system provides both the environment in which applications can be run and a
useable interface between humans and computer.
An operating system also disguises the complexity of computer software and hardware. Common examples of operating systems include:
Microsoft Windows, Apple Mac OS, Google Android and Apple IOS (the latter two being used primarily on tablets and smartphones).
Most computers store the operating system on a hard disk drive (HDD) or solid state drive (SSD) since they tend to be very large programs.
Mobile phones and tablets store the operating system on a solid state device since they are too small to accommodate an HDD.
Figure 4.7 summarises some of the functions in a typical operating system.

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4.1 Types of software and interrupts
4.1.2 Operating systems

Craig'n'Dave

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4.1 Types of software and interrupts
4.1.2 Operating systems
handling interrupts

Craig'n'Dave

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4.1 Types of software and interrupts
4.1.2 Operating systems
managing multitasking

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4.1 Types of software and interrupts
4.1.2 Operating systems
managing peripherals and drivers

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4.1 Types of software and interrupts
4.1.2 Operating systems

Craig'n'Dave

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4.1 Types of software and interrupts
4.1.2 Operating systems
Watch the video for Operating systems
https://www.youtube.com/watch?v=AlmENd2McGk

Craig'n'Dave

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4.1 Types of software and interrupts
4.1.2 Operating systems
managing user accounts and security

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4.1 Types of software and interrupts
4.1.2 Operating systems
managing files

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4.1 Types of software and interrupts
4.1.2 Operating systems
managing files

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4.1 Types of software and interrupts
4.1.2 Operating systems

Craig'n'Dave

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4.1 Types of software and interrupts
4.1.2 Operating systems
Watch the video for the purpose and functions of operating systems
https://www.youtube.com/watch?v=cgiHpRPqCpo

Craig'n'Dave

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4.1 Types of software and interrupts
4.1.2 Operating systems
The purpose and functions of operating systems

Craig'n'Dave

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4.1 Types of software and interrupts
4.1.2 Operating systems
The purpose and functions of operating systems

Craig'n'Dave

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4.1 Types of software and interrupts
4.1.2 Operating systems
The purpose and functions of operating systems

Craig'n'Dave

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4.1 Types of software and interrupts
4.1.2 Operating systems
The purpose and functions of operating systems

Craig'n'Dave

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4.1 Types of software and interrupts
4.1.2 Operating systems
The purpose and functions of operating systems

Craig'n'Dave

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4.1 Types of software and interrupts
4.1.2 Operating systems
The purpose and functions of operating systems
Differences between GUI and CLI interfaces

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4.1 Types of software and interrupts
4.1.2 Operating systems
The purpose and functions of operating systems

Craig'n'Dave

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4.1 Types of software and interrupts
4.1.3 Running of applications
Interrupts

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Multiple Choice

What type of Software is needed to control the computer’s hardware? (1-3) 

• Programming Software 

• Systems Software 

• Application Software 

• Bespoke Software 

Multiple Select

Why is systems software needed? Tick all that apply

• To provide an interface between software and hardware.

• To control the memory so that many apps can be opened at the same time.

• To allow the computer system to turn on.

• To help maintain or configure a computer system.

Multiple Choice

Which part of the operating system will allocate memory to applications to allow more than one piece of software to be run at once?

• Memory management
• File and disk management
• User management
• User interface

Multiple Choice

Which part of the operating system will remove data that is no longer needed to free up space for other programs being used?

• Memory management
• File and disk management
• User management
• User interface

Multiple Choice

Which part of the operating system deals with the movement, editing and deletion of data?

• Memory management
• File and disk management
• User management
• User interface

Multiple Choice

Which one of the following statements about OS is NOT true?

• Operating Systems are the interface between computer hardware and the user

• The CPU can run multiple processes at the same time

• A computer can support several applications being open at the same time

• Peripherals require software called "drivers" in order for the OS to control them

Multiple Choice

Being able to run several applications at the same time is known as�

• Multi tasking
• Application management
• Multi cores
• Application control

Multiple Choice

The four managers of an Operating System are..

• Peripheral Management, Memory Management, Security Management, Process Management

• Peripheral Management, Memory Management, Security Management, Multitasking Management

• Data Management, Memory Management, Process Management, File Management

• Peripheral Management, Memory Management, Process Management, File Management

Multiple Choice

Which of the following statements about OS is not true:

• OS use Memory Management to try and minimise the use of virtual memory

• Drivers use protocols to allow devices to communicate with peripherals

• The BIOS is used to load the operating system into memory, from backing storage when the computer is turned on

• File management in an operating system, is restricted to creating, moving, deleting and editing files & folders.