Whatsapp

Whatsapp is a popular messaging mobile application that was started by Brian Acton and Jan Koum, former employees of Yahoo, in 2009 .In 2014, it has been bought by Facebook for 19 billion dollars. With the onset of this application, the traditional mobile messaging has almost become obsolete through which the telecom companies made a fortune. With just an internet connection, this app can be used for its numerous features. Whatsapp can be downloaded on Play Store for Android devices and App Store for iOS devices. A Whatsapp account can directly be linked to a user’s Facebook account.
The application consists of the following features:

Chats:

Messages which are sent from one user to another. Whatsapp uses user’s phone number to create an account and message other users.

Calls:

Users can call their contacts through this option. Call can be Muted, set on Loudspeaker or we can send a message to the same user while on call.

Video Calls:

Video calls have been introduced recently and by using the front as well as the back camera, we can make video calls.

Whatsapp Web/Desktop:

Whatsapp can also be installed on PCs or tablets. Once we download the app on a device, we need to scan the code generated by it through our phone in order to activate it on that device.

Let us see the functionality of Whatsapp and how it works.

The main User Interface of Whatsapp consists of the following features:

1) Chats:

Chats display the conversations that we have with other users. A conversation can be started by selecting the contacts from ‘Contacts’ in the bottom of the screen. Once a message is sent tick/s appear next to the message. A single tick indicates that the message has been sent from your phone to the server. A double tick indicates that the message has been sent to the other person’s phone. Blue double ticks indicate that the person has read the message. If a single tick appears, then the message can be deleted before it reaches the other persons phone by long pressing it and selecting the ‘Delete’ option.

Other than text messages, users can also send images, videos, GIFs, files, docs, and PDFs by pressing the ’+’ icon on the chat window. Files sent to contacts can be viewed by clicking the contact name in the chat window and selecting the ’Media, Links and Docs’ icon on the contact window.

End-to-end Encryption is provided for both chats and calls on Whatsapp.

2) Calls:

Calls on Whatsapp can be made by pressing the ‘Call’ icon on the top right corner of the chat window. A call can be made only if the receiver is added as your contact. If the receiver is not connected to the internet, then they will get it in the missed calls.

3) Favorites

Favorites can be edited and set according to user preferences.

4) Contacts:

Contacts consist of all the contacts in your contact list irrespective of whether they are on whatsapp or not. They are displayed along with their profile picture and status.

5) Settings:

Account, Privacy and Chat settings can be configured here.

 

Whatsapp has got many features that a user can utilize. Let us see some of them.

Features of Whatsapp:

1) Display pic:

Users can set their picture in this this option. However, they can control who sees what in the Privacy option in Settings->Privacy.

2) Status:

Status can consist of emojis as well as alphanumeric letters. Users can decide who gets to view their status in the Privacy Settings. A new update of Whatsapp is coming soon through which users can post an Image, GIF or a Video as their status, this is said to last only for a day, encouraging users to use Whatsapp more often.

3) Last Seen:

This is a feature which appears below a contact in the chat window. It shows the last time the user has opened his/her Whatsapp. To change this setting, go to Settings->Account->Privacy->Last seen and you can select between ‘Everyone’, ‘My Contacts’ or ‘Nobody’.

4) Whatsapp Groups:

A Whatsapp group can have as many as 200 members. To create a new group, press the ‘New Group’ icon on the top right corner of the screen. People only in your contact list can be added in the groups you create. If you create a group, you will be the ‘Admin’ of the group by default. You can choose multiple admins for the same group. Files sent to groups can be viewed by clicking the group name in the chat window and selecting the ’Media, Links and Docs’ icon.

5) Broadcast Lists:

If a user wants to send messages to multiple contacts, he/she can use Broadcast Lists. To create a new Broadcast List, Press the Broadcast List option on the top left corner of the main screen and add the contacts. However, only people who have you as their contact can receive your messages.

6) Starred Messages:

Important messages can be starred by long pressing a message and selecting the ‘star’ icon on the screen. To view starred messages, go to Settings-> Starred Messages.

7) Notifications:

Push Notifications are sent by default on your device. In order to configure these settings, go to Setting-> Notifications and select your desired preferences.

8) Blocked Contacts:

A user can block contacts that he/she doesn’t want to interact with. This can be done by going to Settings->Account->Privacy->Blocked and add the contact that you want to block. When a blocked contact sends you messages, you won’t receive their messages or calls and only a single tick will appear for the messages they send even when you are online.

9) Two-Step Verification:

To enable this option go to Setting->Account-> Two-step Verification and select ‘Enable’. It provides an added layer of security by sending a code to your mobile number which has to be entered every time you log in to your Whatsapp account.

10) Settings:

The Settings icon is present on the bottom right corner of the main screen. In the settings, we have the following options:

Starred messages

Whatsapp Web/Desktop

Account

Chats

Notifications

Data Storage and Usage

About and Help

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