Class 8th Computer Chapter -5 ( Developing an App)

 Chapter 5: Developing an App

Checkpoint (Pg. 94)

Match the following.

1-c

2-d

3-a

4-b

5-e

Exercises (Pgs. 100-102)

A. Tick (✓) the correct answers.

1. b

2. b

3. b

4. c

5. a

B. Fill in the blanks.

1. Android

2. Designer

3. TextBox

4. Blocks

5. MIT AI2 Companion

C. Write T for True and F for False.

1. F

2. F

3. F

4. T

5. T

D. Answer the following questions.

Q.1    What is the significance of the Design Window in MIT App Inventor ?

Ans:- The design window is where you create the look and feel of your app by designing its user interface (UI). In this part of the app development process, you can add and arrange different components like buttons, textboxes, images, and media controls. These elements help shape how users will interact with your app. By using the design window, you can create the layout and appearance that makes the app visually appealing and easy to use.

Q.2    What is MIT app inventor ? 

Ans :- MIT App Inventor is a widely used platform for creating apps, especially for Android devices. Developed as an open-source tool by Google and the Massachusetts Institute of Technology (MIT), 

Q.3    What is Emulator ?    

Ans:-  An emulator is a piece of software that simulates a mobile device on your computer. It lets you test and debug your app as if you were using it on a real phone or tablet.The emulator helps you catch any mistakes or make improvements to your app without needing to constantly use a physical phone.

Q.4 What is Block Editor ? Explain various parts of Block Editor window. 

Ans:-    To make various app components function—such as performing an action when a button is pressed or displaying information—we use the Block Editor. The Block Editor allows us to specify what actions to take and when to take them.

Block Editor Interface

• Built-in Blocks

• Components Block

• Block Viewer 

• Trash

• Backpack

Q.5   Explain the function of the Components list in MIT App Inventor  ?

Ans:- The Components List in MIT App Inventor displays all elements used in an app, including UI components like buttons and labels, as well as non-visible components like sensors and databases. It allows users to select, rename, delete, and organize components, making app development easier.

Activity Hub (Pg. 102)

Give one-word answers for the following.

1. Design Window

2. Block Editor

3. Emulator

4. Java

5. Swift