Correct option is D
Electronic Mail (E-mail) is a
digital communication system that allows users to send and receive
text messages, files, and documents over a
computer network, typically the Internet. It is one of the most commonly used tools for both personal and professional communication, and it supports
instant message delivery to recipients worldwide.
Important Key Points:
1. E-mail works on
standard internet protocols like SMTP (sending) and POP/IMAP (receiving).
2. Common examples include
Gmail, Yahoo Mail, Outlook, etc.
3. E-mail supports attachments such as
PDFs, images, videos, and other files.
4. E-mail is often used in
official communication, marketing, and account verification.
5. It can be accessed via
web browsers, mobile apps, or desktop clients.
Knowledge Booster:
·
A type of secure online transaction system:
Secure online transactions are typically managed by banking systems, not email.
·
A system for storing digital files on the cloud:
Cloud storage services like Google Drive or Dropbox are for file storage, not messaging.
·
A service used to make phone calls over the internet:
Voice calls over the internet are known as VoIP (e.g., Skype, Zoom).