write the structure of an email message ques.2 what do you mean by search engine? write its component .ques. 3 what are the advantages of e learning

1There is a standard structure for emails. Email contents are primarily classified as two, the header and the body. We are going to see the contents come under the two subparts. The email header gives us common details about the message such as the unique identity of the message.

Explanation:

2a program that searches for and identifies items in a database that correspond to keywords or characters specified by the user, used especially for finding particular sites on the World Wide Web.

its components are

A search engine normally consists of four components e.g. search interface, crawler (also known as a spider or bot),indexer, and database.

3Advantages Of eLearning

It is a very efficient way of delivering courses online. Due to its convenience and flexibility, the resources are available from anywhere and at any time. Everyone, who are part time students or are working full time, can take advantage of web-based learning.

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