1. A website is a collection of web pages.

2. A website (also written as a website) is a collection of web pages and related content identified by a common domain name and published on at least one web server.

3. A group of related web pages makes up a website.

4. Some examples of a website include-

- News websites, such as CNN.com and BBC.com

- E-commerce websites, such as Amazon.com and eBay.com

- Social media websites, such as Facebook.com and Twitter.com

- Personal websites, such as About.me and Blogger.com

In a hierarchical database model, a parent record type can be associated with one or more child record types, but a child record type can have only one parent. This hierarchical structure is represented as a tree-like schema, where each parent record can have multiple child records, but each child record has only one parent. This model is useful for representing data with hierarchical relationships, such as organizational structures or file systems.

1. M.S. The following charts can be created in Excel.

- Column - Chart

- line chart

- Pie chart

- Donut chart

- Bar chart

- Area Chart

- XY (Scatter) chart

- Bubble chart

- Stock Chart

- Surface Chart

- Radar chart

- Combo chart

1. Android OS is a mobile operating system based on a modified version of the Linux kernel.

2. It is an open-source software, primarily designed for touchscreen mobile devices like smartphones and tablets.