The part of the Internet that most people are familiar with is the World Wide Web (usually called the Web, or web). The web is so popular that people often use the terms Internet and web to mean the same thing. But the Internet also includes other services, such as e‑mail, newsgroups, and file sharing. You can send an e‑mail message or participate in a newsgroup without using the web.
The web displays information in a colorful, visually appealing format. Headlines, text, and pictures can be combined on a single webpage (or page)—much like a page in a magazine—along with sounds and animation. A website (or site) is a collection of interconnected webpages. The web contains millions of websites and billions of webpages!
When you click this button, your computer goes to sleep. Windows automatically saves your work, the display turns off, and any noise from the computer's fan stops. Usually, a light on the outside of your computer case blinks or turns yellow to indicate that the computer is sleeping. The whole process takes only a few seconds.
Because Windows saves your work, there's no need to close your programs and files before putting your computer to sleep. The next time you turn on your computer (and enter your password, if required), the screen will look exactly as it did when you turned off your computer.
To wake your computer, press the power button on your computer case. Because you don't have to wait for Windows to start, your computer wakes within seconds and you can resume work almost immediately.
NoteWhile your computer is sleeping, it uses a very small amount of power to maintain your work in its memory. If you're using a mobile PC, don't worry— the battery won't be drained. After the computer has been sleeping for several hours, or if the battery is running low, your work is saved to the hard disk, and then your computer turns off completely, drawing no power.
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