1. There are a total of 12 function keys on the keyboard, labelled F1 to F12.

2. These keys usually perform a special function defined by the operating system or the currently running program.

- F1 key: It is used as a help key in almost every program. When this key is pressed a help screen opens.

- F2 key: In Microsoft Windows, renames a highlighted icon, file, or folder in all versions of Windows.

- F3 key: When on the Windows desktop, often opens a search feature for many programs, including Microsoft Windows.

- F4 key: Use to open or find a window in Windows 95 to XP.

- F5 key: In all modern Internet browsers, pressing F5 refreshes or reloads the page or document window.

- F6 key: Move the cursor to the address bar in Internet Explorer, Mozilla Firefox, and most other Internet browsers.

- F7 key: Commonly used to perform a grammar check in Microsoft programs, such as Microsoft Word, Outlook, etc.

- F8 key: It is used to enter the Windows Startup Menu.

- F9 key: Used to refresh the document in Microsoft Word.

- F10 key: In Microsoft Windows, activate the menu bar of an open application.

- F11 key: Used to enter and exit full-screen mode in all modern Internet browsers.

- F12 key: Use the Save As window in Microsoft Word.

1. If a company wants to include its company name and logo at the bottom of each page of the brochure, the footer is to be used.

2. Inserting a header or footer in MS Word is a simple process that can be completed in just a few steps.

- Open the document in MS Word in which you want to insert a header or footer.

- Click on the “Insert” tab at the top of the MS Word window which is to the right of the Home tab. You can also open the insert tab by pressing the MS Word shortcut key “Alt+N”.

- In the “Header & Footer” group, click the “header” or “footer” button, depending on what you want to insert into your document.

- A menu will appear with various header and footer options. Select the desired option and then click “OK”.

- Header or Footer will now be inserted into your document. You can type directly into it or add images and other content as desired. When you're finished, click outside the header or footer area to return to the document.

1. Outlook.com is a personal information manager web app from Microsoft that includes webmail, scheduling, contacts, and tasks services.

2. It was founded as Hotmail in 1996 by Sabir Bhatia and Jack Smith. It was acquired by Microsoft in 1997 and relaunched as MSN Hotmail, later as part of the Windows Live suite of products. As part of Windows Live Hotmail was rebranded.

3. Microsoft phased out Hotmail in October 2011, relaunching the service as Outlook.com in 2012.

1. The full name of FTP is File Transfer Protocol.

2. It is a network protocol used to transfer files between two computers.

3. FTP is a two-way protocol, which means both computers can send and receive files from each other.

4. FTP runs in two main modes-

- Unprotected Mode: This mode transfers files without any protection.

- Secure Mode: This mode uses encryption to transfer files using SSL or TLS.

1. The file extension in PowerPoint 2010 is .pptx.

2. It is an open XML (Open XML) format used in PowerPoint 2007 and later versions.

3. .pptx files can also be opened with other presentation software, such as OpenOffice Impress, Google Slides, and Apple Keynote.

1. In MS Excel 2010, the address of the topmost cell is Al.

2. Microsoft Excel is a commercial spreadsheet application written and distributed by Microsoft for Microsoft Windows and Mac OS X.

3. Microsoft Excel is a spreadsheet tool capable of performing calculations, analyzing data, and integrating information from different programs.

1. HTTP is responsible for locating the domain name and translating it into Internet Protocol S.

2. IP address (Internet Protocol address) is a digital address used to identify a computer or device on the Internet or any other network.