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Chapter 5

App Development

Class 8 - APC Understanding Computer Studies with BlueJ


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Question 1

The full form of app is application.

Question 2

App development is possible only if developer mode is on.

Question 3

To work with a mobile app, you need to download the app from the Play Store.

Question 4

Twitter allows short messaging called tweets.

Question 5

A social networking app developed in China is called WeChat.

Question 6

The Appypie Software allows free app development.

State whether the following statements are True/False

Question 1

It is possible to develop an app offline.
True

Question 2

Mobile websites and other websites are the same.
False

Question 3

To work with an app, tap on an appropriate app on the mobile screen.
True

Question 4

Google+ is a social networking app.
True

Question 5

Android is an operating system applied to work with a computer.
False

Question 6

Appypie software needs a program code to develop an app.
False

Match the apps along with their creators or developers

Table ATable B
FacebookKevin Systrom
YouTubeJack Dorsey
WhatsAppMark Elliot Zukerberg
InstagramBrion Acton
TwitterSteve Chen

Answer

Table ATable B
FacebookMark Elliot Zukerberg
YouTubeSteve Chen
WhatsAppBrion Acton
InstagramKevin Systrom
TwitterJack Dorsey

Short Answer Questions

Question 1

What is meant by a mobile app?

Answer

The apps that run on a smart phone or tablet are called mobile apps.

Question 2

How are mobile apps operated?

Answer

The mobile app is first downloaded from the specific mobile portal like Google Play Store or Apple's App Store and then installed on the mobile. Once the app is installed, we open it and use it according to our requirements.

Question 3

Name two social networking apps that are used to write short messages.

Answer

  1. WhatsApp
  2. WeChat

Question 4

Name two softwares used for free app development.

Answer

  1. Appypie
  2. Nativ

Question 5

What type of app can be accessed offline?

Answer

Desktop apps and Mobile apps.

Question 6

What is meant by Android mobile?

Answer

Android is a Linux based operating system developed by Open Handset Alliance that is led by Google. A mobile running Android operating system is called an Android mobile.

Question 7

Name a mobile platform that allows you download an app.

Answer

Google Play Store

Differentiate between the following

Question 1

Online app and Mobile app

Answer

Online appMobile app
Online apps are similar to other websites as they are accessed through browser.Mobile app is downloaded from the specific mobile app portal and installed on the mobile.
They require internet connection to work.Once installed these apps can work in offline mode too without the need of internet connection.

Question 2

Mobile website and other websites

Answer

Mobile WebsiteOther Websites
Mobile Websites are created keeping in mind that they can be used easily on portable devices like smartphones, iPhones or tablets.It is very difficult to use other websites on portable devices as they have small displays.
Mobile Websites are equipped to provide information just by tapping on a touch sensitive screen.Providing information is difficult as these sites are not optimized for touch input.

Question 3

Facebook and WhatsApp

Answer

FacebookWhatsApp
Facebook allows us to create friend list of our choice.WhatsApp allows us to communicate with each other.
The posted message is visible to all of our friends.The user has a choice to share any message with an individual or a group.

Long Answer Questions

Question 1

Explain working with a mobile app.

Answer

To work with an app, perform the following steps:

  1. Tap on the appropriate app (say calculator) that is displayed on the mobile screen. The app home page will open on the screen.
  2. Keep tapping on the desired buttons or tabs of your choice.
  3. The required work with the selected app will be completed.

Question 2

What is meant by Google Maps? Explain its working.

Answer

Google Maps is one of the frequently used apps on mobile phones. If you tap on Google Maps, it will show you the location of your mobile. On setting the destination, it shows the shortest route map on the screen. You can then proceed through the path for reaching your destination. From time to time, it will keep on guiding you via voice instructions like go straight 100m, take left or right turn etc.

Question 3

Explain the use of Instagram.

Answer

Instagram is a networking app used to share pictures and videos among the users. The sharing can be done by using an instagram account. Instagram also helps users to share their pictures and videos to other platforms like Facebook, Twitter, Flickr, etc.

Question 4

Show the steps for signing up for an Appypie account.

Answer

  1. Open the website www.appypie.com. The homepage will appear on the screen.
  2. Click on the 'Join' button. Signup tab will open.
  3. Enter your email address and password and click on 'Sign Up' button.
  4. Appypie asks for the verification code sent to your email address. Enter the verification code and click on verify. This completes the Sign Up process for Appypie account.

Question 5

What is meant by customizing a page? Write the steps for theme customization.

Answer

Customizing a page means changing the appearance of the screen components. Below are the steps for theme customization:

  1. App Background: Select an app background from a set of backgrounds. This is done to provide a common background for the app pages appearing on the mobile screen.
  2. Navigation Heading Bar: It allows changing the heading bar that displays the app name or the page name.
  3. Navigating Style and Colour: This option can be used to change the style and colour of the page icons.
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