Command Line interfaces
Commands such as abbreviations typed in at the prompt to which the system responds
The most important design principles
High Consistency
What are command interfaces popular for
-Web scripting
-Shared document editing
WIMP consisted of the following
-Windows
-Icons
-Menus
-Pointing device
Windows
Sections of the screen that can be scrolled, stretched, overlapped, opened, closed, and moved using a mouse
Icons
Pictograms that represent applications, objects, commands, and tools that are opened or activated when clicked on
Menus
Lists of options that can be scrolled through and selected
Pointing device
A mouse controlling the cursor as a point of entry to the windows, menus, and icons on the screen
What was the original GUI called
WIMP (Windows, icons, menus , pointer)
Why was the windows design invented
-To overcome the physical constraints of a computer display
-They enable more information to be viewed and tasks to be performed
Function of Scroll bars within windows
They enable more information to be viewed than is possible on one screen.
Techniques that can help to find a desired window in the midst of multiple
-Listing
-Tabbing
-Thumbnails
Types of menu styles
-Flat list
-Drop down
-Pop up
-Contextual
-Collapsible
-Mega
Flat list
Good for showing large number of options at the same time when display is small
Drop Down
Shows more options on same screen
Pop up
When pressed, command key for relevant options
Contextual
Provides access to often-used commands associated with a particular item
Collapsible
Toggles on a header to expand or contract its contents
Mega
All options shown using 2D drop-down layout
Window Management
Enables users to move fluidly between different windows
