App Development

Apps can be broadly classified into three categories. They are:

1. Desktop apps
2. Web apps
3. Mobile apps

Desktop Apps in detail:

1. These apps are used on a desktop or laptop.
2. They do not need web access/internet.
3. They can run independently on a computer.
4. Desktop apps need to be installed on the device before they can run.
5. For example — Notepad, Word processor, spreadsheet etc.

The requirements for developing an app are as follows-

1. A good grasp of programming language (JAVA)
2. Android Software Development Kit (Android SDK)
3. Essential knowledge of-
   a. Extensible Markup Language (XML)
   b. HTML (HyperText Markup Language)
   c. CSS (Cascading Style Sheets)

The differences between Native apps and Hybrid apps are as follows-

The differences between a Desktop app and a Mobile app are as follows-

To download and install an app from the Google Play Store, follow these steps-

Step 1 — Tap on the Play Store icon on the screen of your device.

Step 2 — Type the name of the app you wish to download (or the general description of the job that the app does), in the Search bar.

Step 3 — It will display the relevant list of apps. Now select the most suitable one by tapping on the name of the app.

Step 4 — Additional information about the app will be displayed. Check out the reviews and comments of previous users. If it meets your requirements, click on INSTALL button to install the app on your device.

Step 5 — The app will request you for the permission to access certain information on your phone. Confirm your consent and the app will be downloaded and installed on your device.

Step 6 — The app is now ready to use.

The importance of educational apps is as follows:

1. Students can access high quality educational resources from anywhere in the world.
2. The content is covered through a variety of media — pictures, charts, activities, videos, worksheets etc. This makes it easier to grasp and retain.
3. Students can learn at their own pace.
4. Teachers can use these apps to distribute study material quickly, conduct tests and grade the students efficiently.
5. Parents can monitor the progress of their child effectively.

Photo editing means changing or manipulating some elements of a photo. Some tasks that are used to edit a photo are as follows:

1. Cropping — This tool allows us to adjust the framing of a photo to alter its composition. For example — we use cropping on photos when we set our Whatsapp status.

2. Colour correction — Photo editors provide various filters to alter the overall appearance of our photos. For example — we use filters to make our photos attractive.

3. Add text or stickers — We can add text or stickers to our photos using photo editors. For example — We use this tool to point out things in the photos.

4. Resize — This tool helps us to change the size of our photos. For example — When we fill any exam form online, the candidate's photo needs to be of a particular size (say less than 16 MB). This tool helps in resizing the photo.

Sneha can use the BookMyShow app to book the tickets for the movie online.

Mannat can use Whatsapp to share the photographs with her friends.