Class 8th Chapter -4 Computer

Chapter 4: Introduction to Apps

Checkpoint (Pg. 75)

Fill in the blanks.

1. tablets, smartwatches

2. app store

3. iPhone

4. Google Play Store

5. Browser

Checkpoint (Pg. 79)

Write T for True and F for False.

1. F

2. T

3. F

4. T

Exercises (Pgs. 81-83)

A. Tick (✓) the correct answers.

1. a

2. b

3. b

4. a

5. a

B. Fill in the blanks.

1. smartphones, tablets

2. iOS

3. E-commerce

4. Web

5. React Native

C. Write T for True and F for False.

1. F

2. F

3. T

4. F

5. T

D. Answer the following questions.

Q.1    Define an application . Give examples of the different types of applications. 

Ans:-    Application refers to a software program designed to perform specific tasks on devices like smartphones, tablets, or computers. Apps serve diverse purposes, including communication, entertainment, productivity, and education. Some examples of apps are - web browser, calendar, email, and music player.

Q.2    Define Flutter and React Native. 

Ans:-    Flutter :-  Flutter is an open source framework developed by Google for creating mobile apps. It allows developers to build apps for Android, iOS and the web using a single code base .

React Native :- React Native is a popular mobile app development platform created by Meta. It enables developers to build native apps for iOS and Android using JavaScript and the React library. 

Q.3    Explain the difference between mobile apps and web apps .    

Ans:-    Mobile Apps :- A mobile app is a software application designed to run on smartphones or tablets, installed via app stores, providing specific functions, offline use, and access to device features like GPS and camera.

Web Apps:-  A web app is an application accessed through a web browser without installation, works on multiple devices, requires internet, offers limited access to device features, and depends on browser performance and speed.

Q.4    What is a Mobile Application Development Platform (MADP) ? 

Ans:- A Mobile Application Development Platform (MADP) is software that helps companies design, test, and deploy mobile apps for smartphones and tablets. It provides tools for front-end, backend, APIs, and supports creating native, web, or hybrid applications efficiently.

Q.5    List Three advantages and disadvantages of app ? 

Ans:- 

Advantages of Apps

1. Provide quick and easy access to services.

2. Many apps work offline, saving internet usage.

3. Offer personalized features like GPS, camera, and notifications.

Disadvantages of Apps

1. Consume storage space and memory.

2. Frequent updates may be required.

3. Some apps depend on internet and drain battery.