Important Questions and Answers: Windows and controls

WINDOWS AND CONTROLS

1.Give some examples for device based controls.

Device based controls called input devices. Examples

Track ball.

Joystick.

Graphical tablet.

light pen

Touch screen

Voice.

Mouse.

Keyboard.

2.List the different presentation styles.

The presentation style of a window refers to its spatial relationship to other windows.

There are two basic styles,

Tiled window.

Overlapping windows.

Cascading windows.

3.What are the Components of a window?

Components of a Window

A Typical window composed of elements such as

Title Bar

Frame

Title bar Icon

Window Sizing Buttons

What’s This? Button

Menu Bar

Status Bar

Scroll Bars

Split Box

Toolbar

Command Area

Size Grip

Work Area

Frame or Border Boundary to define shape.

If sizable, contains control points for resizing.

Title Bar Text

Name of object being viewed in window.

Control point for moving window.

Title Bar Icon

Small version of icon for object being viewed.

Access point for commands that apply to the object.

Title Bar Buttons

Shortcuts to specific commands.

Close

4.What is selection control?

Selection control

A selection control presents on the screen all the possible alternatives, conditions or choices that may exist for an entity, property or value.

The relevant item or items are selected are displayed.

It present all the alternatives together visibly on a screen.

selection control include radio button, check boxes, list boxes, drop down / popup list

boxes & palettes.

5.State any four charteristics of windows.

The specific design characteristics that enhance an online Help are still being identified.

Three broad areas of Help that must be addressed in creating Help are: its content, its presentation, and its access mechanisms.

6.What are the Merits of Track ball?

Advantages:

Direct relationship between hand and pointer movement in terms of direction and speed.

Does not obscure vision of screen.

Does not require additional desk space (if mounted on keyboard).

7.List is the need for Text boxes?

A Text Entry control contains text, free-form in nature that is exclusively entered or

modified using the keyboard. A Read-Only control will contain text or values being presented for reading or display purposes only.

A text box into which information can be keyed is called an unprotected field.

A text box used for display purposes only is referred to as a protected field.

8.What is the need of tool bar ?

To provide easy and fast access to most frequently used commands or options across

multiple screens.

To invoke a sub application within an application.

To use in place of certain menu items.

9.What is the need for device based control?

Device-based controls, often called input devices, are the mechanisms through which

people communicate their desires to the system.

Direct devices are operated on the screen itself.

Examples include the light pen, the finger, and voice.

Indirect devices are operated in a location other than the screen, most often on the desktop.

10.What are the types of Presentation Styles?

Ø There are two basic styles, commonly called tiled or overlapping.

Tiled Windows

Tiled windows derive their name from common floor or wall tile.

Tiled windows appear in one plane on the screen and expand or contract to fill up the display surface, as needed.

Most systems provide two-dimensional tiled windows, adjustable in both height and

width.

Overlapping Windows

Overlapping windows may be placed on top of one another like papers on a desk.

They possess a three-dimensional quality, appearing to lie on different planes.

11. Define window.

A window is a area of the screen usually rectangular in shape, defined by a border that

contains a particular view of some area of the computer.

It can be moved and rendered independently on the screen.

12.What is known as split box?

A Window can split into 2 or more pieces or panes by manipulating a split box located

above a vertical scroll bar or to the left of a horizontal scroll bar.

13.Define size grip?

A size grip is a Microsoft windows Special hand]e included in a window to permit it be resized.

When the grip is dragged the window resizes following the same conventions as the sizing border.

14. What are the presentation styles of windows?

Tiled windows

Overlapping windows

Cascading windows

15.What are the advantages of Tiled windows?

Advantages of Tiled windows:

The system usual]y allocates and positions windows for the user, eliminating the necessity to make positioning decisions.

Open windows are always visible, eliminating the possibility of them being lost and

forgotten.

Every window is always completely visible, eliminating the possibility of information

being hidden.

16.What is known as cascading window?

A special type of overlapping window has the window automatically arranged in a regular progression.

Each window is slightly offset from others.

17. What are the different features, of tiled & over lapping window?

Tiled window used for

Single task activities

Data that needs to be seen simultaneously

Tasks requiring little window manipulation

Novice or inexperienced users 0verlapping windows used for:

Switching between tasks

Tasks necessitating a greater amount of window manipulation

Except or experienced users

Unpredictable display contents

18.What are the various types of windows?

Primary window:

It is the one that appears on a screen when an activity or action is started. Secondary window:

They are supplemental windows. It may be dependent or independent of primary window.

19. Differentiate between cascading and unfolding.

Cascading:

A cascade is used when advanced options at a lower level in complex dialog must be

presented. Present the additional dialog box in cascaded form.

Unfolding:

To provide advanced options at the same level in a complex dialog. Provide a command button with an expanding dialog symbol.

20. What are the various window management schemes?

Single document interface

Multiple document interfaces

Workbooks

Projects

21. Differentiate between SDI & MDI

22. What is meant by windows project?

Ø A project is a similar to MDI,but does not visually contain child windows.

The objects held within the project window can be opened in primary windows that are peers with the projectwindow.

23. How window is organized?

Organize windows to support user tasks.

Support the most common tasks in the most efficient manner or fewest steps.

Use primary windows to perform major interaction.

Use secondary windows to obtain or display supplemental information

Related to the primary windows.

24. What are the advantages of frames in web systems?

They decrease the user's need to jump back and forth between screens, thereby reducing

navigation related cognitive overhead.

They increase the user's opportunity to request, view and compare multiple sources of

information.

They allow content pages to be developed independently of navigation pages.

25. List some example for device based controls.

Device based controls called input devices are the mechanism through which people

communicate their desires to the system.

Example: track ball, joystick, graphic tablet, light pen & touch screen

26. Differentiate the usage of keyboard with mouse?

27. What is meant by graphic tablet?

A graphic tablet is a device with horizontal surface sensitive to pressure, heat, light or the

blockage of light.

It may lie on the desk or may be incorporated on a keyboard and is operated with fingers & light pen.

28. What is meant by spin box?

A spin box called spin button is a single field followed by 2 small vertically arranged

buttons inscribed with up and down arrows.

A selection entry is made by using the mouse to point at one of the directional buttons and clicking.

What is meant by slider?

A slider is a scale that exhibits the amount or degree of a quantity or quality.

A slider incorporates the range of possible values and includes a shaft representing the range, the values with label and visual indication of the relative setting through the location of a sliding arm.

30. Differentiate between tooltip from balloon tips.