classs 8 chapter APP DEVELOPMENT

 

🌟 Chapter: Mobile Apps and App Development

ICSE Class 8 – Full Answers (Objective + Subjective)

A. Objective Questions

1. Tick (✔) the correct option

  1. Google Play Store is an auto-installed application on ______ mobile phones.
    ✅ Answer: c. Android

  2. ______ apps can be used to perform various activities like transactions.
    ✅ Answer: a. Banking

  3. ______ apps let us post pictures, videos and updates to our profile.
    ✅ Answer: d. Social Networking

  4. Which of the following is an example of an Entertainment app?
    ✅ Answer: a. Hotstar

  5. Which mobile app is designed for a particular platform or device?
    ✅ Answer: a. Native App

B. Write True (T) or False (F)

  1. To run a desktop app, it must first be installed on the desktop. → ✅ True

  2. Native apps are expensive to develop and maintain. → ✅ True

  3. Some hybrid apps can be operated offline also by using cached pages. → ✅ True

  4. Hotstar and Amazon Prime Video are popular banking apps. → ❌ False (They are entertainment apps.)

  5. Play Store is an Apple iOS-based phone to install applications. → ❌ False (Play Store is for Android phones.)

C. Fill in the blanks using the words in the box

(Words: Hybrid Apps, Desktop Apps, App, Mobile Apps, Native Apps)

  1. An App is a software application which is developed for a specific function.

  2. Some popular Mobile Apps are WhatsApp, Instagram and Flipkart.

  3. Some popular Desktop Apps are Microsoft Edge, Paint and Excel.

  4. Native Apps are usually developed for a specific operating system and device.

  5. Hybrid Apps contain the features of both Web App and Native App.

D. Subjective Questions

1. Define the term App. Name two popular App Stores.

An App (Application) is a software program that performs a specific task on a computer or mobile device.
Two popular app stores are:

  • Google Play Store

  • Apple App Store

2. Explain any three Social Networking Apps.

  1. Facebook: Used to connect with friends, share photos and posts.

  2. Instagram: Used for sharing photos, reels, and stories.

  3. Twitter (X): Used to post short messages called tweets and follow others.

3. Distinguish between a Mobile App and a Desktop App.

Mobile AppDesktop App
Runs on smartphones or tablets.Runs on desktops or laptops.
Downloaded from app stores.Installed from drives or internet.
Uses touch interface.Uses keyboard and mouse.
Examples: WhatsApp, PaytmExamples: Paint, Excel

4. How can you download and install an App from the Google Play Store?

Steps:

  1. Open Google Play Store on your Android device.

  2. Tap on the Search bar and type the app name.

  3. Select the desired app.

  4. Tap Install.

  5. After installation, the app icon appears on your home screen.

5. Write the steps to develop an App using MIT App Inventor.

Steps:

  1. Open appinventor.mit.edu in a browser.

  2. Click Create Apps! and sign in with your Google account.

  3. Click Start new project and name it.

  4. Design the app in the Designer window by dragging components.

  5. Add logic using Blocks section.

  6. Test the app using AI Companion.

  7. Click Build → Android App (.apk) to create and install your app.

✅ All-in-One Answer Summary

SectionQuestion TypeExample Answer
AMCQsAndroid, Banking, Social networking, Hotstar, Native App
BTrue/FalseT, T, T, F, F
CFill in the blanksApp, Mobile Apps, Desktop Apps, Native Apps, Hybrid Apps
DSubjectiveFull written answers above

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