Explanation

• Wolfram Alpha is not a search engine in the classical sense, it's a computational knowledge engine.
• Google, MSN, android Yahoo are traditional search engines that crawl and index web pages to provide relevant search results.

Explanation

Robots are machines controlled by software and are used in various fields, including:

• Manufacturing: Robots are widely used in manufacturing for tasks such as welding, assembly, and material handling.
• Military: Robots are used in the military for tasks such as explosive disposal, surveillance, and search and rescue.
• Medical: Robots are used in medicine for tasks such as surgery, patient care, and rehabilitation.

Explanation

• When you hover the mouse over a chart object, such as a bar or a line, a small popup box appears, displaying additional information about the data point.
• Such as its value, label, or other relevant details.
• This popup box is called a Screen Tip or Tooltip.

Explanation

• In Microsoft Word 2007, you can extend a selection to the end of a document by pressing Ctrl + Shift + End.
• This keyboard shortcut selects all text from the current cursor position to the end of the document.

Explanation

• A username is a unique name chosen by a user when creating an email account or logging into a computer system.
• It is also known as a login name or user ID.
• The username is used to identify the user and is often used in combination with a password to authenticate the user's identity.

Explanation

To zoom an Excel worksheet, you can use:

• The mouse pointer in Print Preview: Click and drag the mouse pointer in the lower right corner of the Print Preview window to zoom in or out.
• The zoom button on the Print Preview toolbar: Click the zoom button (magnifying glass icon) to zoom in or out.
• The zoom command on the View menu: Select View > Zoom > Zoom In/Out or use the shortcuts Ctrl+Plus sign (+) to zoom in or Ctrl+Minus sign (-) to zoom out.

Explanation

To move between worksheets in a workbook in MS Excel, you can use the following shortcuts:

• Ctrl+Page Up: Move to the previous worksheet
• Ctrl+Page Down: Move to the next worksheet

Explanation

• A buffer, which is a temporary storage area, can exist both in the hard disk and RAM.
• Helping manage data transfer and processing efficiently.

Explanation

The "md" (make directory) or "mkdir" (make directory) command is used in command-line interfaces to create a new directory.

Explanation

• To open the handout master, you click VIEW and Handout Master.
• On the HANDOUT MASTER tab, notice this group of options — they represent all the header and footer placeholders.
• You use them to show or hide the placeholders on the master.