<meta> tag in HTML

<meta> tag

This tag provides additional information about web page. This tag belongs to document header & has no contents in between <meta> & </meta> tag. Metadata is data or information about data. Meta tag is typically used to specify page description, keywords, author of the document, last modified, and other metadata. This tag don't have closing tag.
It has following attributes:
Attributes DescriptionValues
name : Identifies the name with meta information. author, description, keywords, generator, revised
content : Provides the contents of meta information.text
scheme : Defines a format to be used to interpret the value of the content attribute.Gives the user agents more context for interpreting the information in the content attribute. format/URL
<meta name="description" content="Learn HTML programming" />
<meta name="keywords" content="HTML, tag, meta tag" />
<meta name="author" content="Ramesh" />"

<applet> tag

This tag is used to download & execute an applet. An applets are developed with Java Programming Language & are mini programs the manages web page contents.

Browsers that do not supports Java ignores anything between <applet> & </applet> tag.
It takes following attributes:
Attributes DescriptionValues
align : Specifies the horizontal alignment of applet displayed.left, right, top, bottom, middle, baseline
alt : Displays the textual description of an applet.text
code : Specifies the location of the Java byte code file on the server.URL
codebase : Specifies folder location of all necessary class files on the web server.URL
height : Sets the height of the applet window.pixels
hspace : Specifies the amount of blank space at left & right of the applet window.pixels
name : Labels the applet to identify it.name
title : Sets the label assigned to tag.text
vspace : Sets the amount of space to the top & bottom of applet object.pixels
width : Sets the width of an applet. pixels

<param> tag

This tag is paced after the <applet> tag. This tag provides parameter for applets within the <applet> tag.
It has no contents & end tag.
Attributes used with this tag are:
Attributes DescriptionValues
name : Name of the parameter passed to the embedded object.name
value : Specifies value for the parameter.value