4-OS-Lessons-4

Operating
Systems

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We’ll be looking at:

• Define what a user interface (UI) is and explain its importance in operating systems.

• Identify the different types of UIs (e.g., command-line, graphical user interface) and explain their advantages and disadvantages.

Learning Objectives

User Interfaces

The User Interface (UI)

With the OS managing all the processing and hardware and
everything, we need a nice, easy way of communicating with and
managing the OS.

The User Interface (UI)

With the OS managing all the processing and hardware and
everything, we need a nice, easy way of communicating with and
managing the OS.

We saw

these

“interfaces”

earlier

This is what the User Interface gives us, and it is constantly
evolving – sometimes for the better and sometimes not.

User Interfaces - CLI

>> CLI

Command Line Interface

User Interfaces - CLI

>> CLI

Command Line Interface

Computer “experts” often prefer the CLI interface

as it can be quicker.

30 sec

User Interfaces - GUI

>> GUI Graphical User Interface

User Interfaces - GUI

>> GUI Graphical User Interface

45sec

Windows Icons

Windows Icons

​Windows 1 & 2

Windows 1 & 2

Windows 3

Windows Icons

Windows 1 & 2

Windows 3

Windows 7

Windows Icons

Windows 1 & 2

Windows 3

Windows 7

Windows 10

Windows Icons

Windows 1 & 2

Windows 3

Windows 7

Windows 10

Windows Icons

Which do you prefer?

Poll

Which do you prefer?

• Windows 1 & 2

• windows 3

• Windows 7

• Windows 10

Windows 1 & 2

Windows 3

Windows 7

Windows 10

Windows Icons

Which do you prefer?

Do they always get better?

Poll

Do they always get better?

• Yes

• No

User Interfaces - WIMP

In the Microsoft Windows GUI, programs are opened by
double-clicking an Icon with your mouse Pointer. Once a program
is opened, it is contained within a Window. In the window, the
programs features are accessed through Menus (or ribbon bars).

User Interfaces - WIMP

In the Microsoft Windows GUI, programs are opened by
double-clicking an Icon with your mouse Pointer. Once a program
is opened, it is contained within a Window. In the window, the
programs features are accessed through Menus (or ribbon bars).

Icon

User Interfaces - WIMP

In the Microsoft Windows GUI, programs are opened by
double-clicking an Icon with your mouse Pointer. Once a program
is opened, it is contained within a Window. In the window, the
programs features are accessed through Menus (or ribbon bars).

Icon

Pointer

User Interfaces - WIMP

In the Microsoft Windows GUI, programs are opened by
double-clicking an Icon with your mouse Pointer. Once a program
is opened, it is contained within a Window. In the window, the
programs features are accessed through Menus (or ribbon bars).

Icon
Pointer

Window

User Interfaces - WIMP

In the Microsoft Windows GUI, programs are opened by
double-clicking an Icon with your mouse Pointer. Once a program
is opened, it is contained within a Window. In the window, the
programs features are accessed through Menus (or ribbon bars).

Icon
Pointer

Menus

Window

User Interfaces - WIMP

In the Microsoft Windows GUI, programs are opened by
double-clicking an Icon with your mouse Pointer. Once a program
is opened, it is contained within a Window. In the window, the
programs features are accessed through Menus (or ribbon bars).

All WIMPs are GUIs but not all GUIs are WIMPs - explain

Icon
Pointer

Menus

Window

Open Ended

All WIMPs are GUIs but not all GUIs are WIMPs  - explain

User Interfaces - WIMP

In the Microsoft Windows GUI, programs are opened by
double-clicking an Icon with your mouse Pointer. Once a program
is opened, it is contained within a Window. In the window, the
programs features are accessed through Menus (or ribbon bars).

All WIMPs are GUIs but not all GUIs are WIMPs - explain

– smartphones do not use Windows or Pointers but are graphical.

Icon
Pointer

Menus

Window

30 sec

Futuristic 3D GUI

45sec

User Interface – voice (VUI)

User Interface – voice (VUI)

“Assistants”

​

​“Assistants”

User Interfaces – touch (TUI)

User Interfaces – touch (TUI)

Your finger

is now the pointer.

User Interfaces – touch (TUI)

Your finger

is now the pointer.

Do you remember… smartphones use graphical interfaces (GUI),

User Interfaces – touch (TUI)

Your finger

is now the pointer.

Do you remember… smartphones use graphical interfaces (GUI),

but do not use windows or pointers so do not use WIMP.

User Interfaces – gesture

Now, you can gesture in 3D

rather than touch on a 2D screen.

1min45

User Interface - development

That was Sci-Fi…

but it was actually developed like this…

2min

User Interfaces - summary

​

User Interfaces - summary

​

User Interfaces - summary

​

User Interfaces - summary

​

User Interfaces - summary

User Interfaces - summary

Pens down, and turn your worksheets over please.

Your turn…

Work with your table partner

and discuss your answers.

We’ll then go through the
answers and complete the

worksheet together.

Arrange in the
correct order

Labelling

Arrange in the correct order

Drag labels to their correct position on the image

GUI

Text

VUI

Touch

TUI

Touchless

Graphics

CLI

Voice

Your turn…

Complete

1 - 7

Work with your table partner

and discuss your answers.

We’ll then go through the
answers and complete the

worksheet together.

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Multiple Choice

Instructions were fed in to early computers using

• hole cards

• punch cards

• row cards

• operating cards

Multiple Select

The job of a compter operator was to (choose TWO)

• clean the computer

• feed in batches of punch cards

• sort out any blockages

• keep people away from the computer

Multiple Choice

Computer speed is measured in Hertz (Hz)

• True

• False

Multiple Select

Punch cards were replaced with (select ALL that apply)

• tape

• floppy disks

• hard disks

• solid state drives

Multiple Choice

Who created the first microcomputer Operating System (CP/M) in the 1970s?

• Bill gates

• Gary Kildall

• Steve Jobs

• Jeff Bezos

Multiple Select

Which of these does the Operating System manage (tick ALL that apply)?

• computer memory

• CPU

• files

• network

Multiple Choice

You communicate with the Operating System through a User Interface

• True

• False

Multiple Choice

Early computers in the 1950s used a

• text interface

• graphical interface

• touch interface

• voice interface

Multiple Choice

The Windows GUI uses a Pointer, a Window, Menus and Icons, abbreviated to

• WPIM

• WIMP

• IMWP

• MIWP

Multiple Choice

A VUI uses

• video

• voice

Multiple Choice

Siri and Alexa are examples of Voice interfaces

• True

• False

The End.