1. GUI or graphic user interface has nothing to do with graphic files because it is a type of interface that interacts through visual indicators such as graphical icons and secondary notation, unlike text-based interfaces, type command labels or text navigation. Provides facility to do.

1. The inbox is the place where e-mail messages are received in an e-mail client or online e-mail account.

2. The Inbox is the default location for all incoming mail, unless rules are set to forward messages to another e-mail address, folder, or program.

3. All e-mail clients like Microsoft Outlook or Mozilla Thunderbird and online e-mail accounts like Gmail and Outlook.com have an Inbox folder.

An electronic payment system using debit cards and credit cards can be done in

1. A web browser is software used to view websites.

2. When a user requests a web page from a particular website, the browser retrieves its files from the web server and then displays that page on the user's screen.

3. Browsers are used on multiple devices, including desktops, laptops, tablets, and smartphones.

4. Some of the famous internet browsers in the world are – Google Chrome, Microsoft Edge, Microsoft Internet Explorer, Mozilla Firefox, Opera, Apple Safari, and Amazon Silk.

1. Application software is closely related to database management systems M.S. Excel related.

2. It is system software for creating and managing databases.

3. It is software designed to store, retrieve, define, and manage data in a database.

1. In Microsoft PowerPoint, the Ctrl + D shortcut key inserts a duplicate of the selected slide.

2. Ctrl+D is a keyboard shortcut used in many computer programs to perform various tasks. In a web browser, pressing Ctrl+D adds the current webpage to your bookmarks or favourites list.

3. In Microsoft Excel and Google Sheets, pressing Ctrl+D fills a cell and overwrites it with the contents of the cell in a column above it.

1. Mail Merge is a facility in MS Word using multiple or different letters, invitation cards, and personal letters that can be sent to many people in a minimum time.

2. This feature is more useful in a situation when a user has to deliver a letter or invitation card to thousands of people.

3. We can understand mail merge with an example. Suppose we have to send a letter or card to 1000 different people with their names and addresses, in that case, we will have to copy and paste that letter 1000 times for all those people, and then a lot of time will be wasted. A database will be created which will contain the names, addresses and other information of all the recipients. This database file is in MS Excel or MS Access.

1. The Control key, also called the Ctrl key, is a modifier key found on most computer keyboards. It's usually located in the lower left part of the keyboard, next to the Caps Lock and Tab keys.

2. The Control key is used in combination with other keys to perform various keyboard shortcuts. For example, pressing Ctrl+C copies the selected text to the Clipboard, pressing Ctrl+V pastes text from the Clipboard, and pressing Ctrl+S saves the current document.

3. Various uses of control keys-

Ctrl+C: Copy

Ctrl+V: Paste

Ctrl+X: Cut

Ctrl+Z: Undo

Ctrl+Y: Redo

Ctrl+A: Select all

Ctrl+B: Bold

Ctrl+I: Italic

Ctrl+U: Underline

Ctrl+S: Save

Ctrl+O: Open

Ctrl+N: New

Ctrl+P: Print

Ctrl+F: Find

Ctrl+H: Replace

Pressing Ctrl+Shift+Esc opens the Task Manager.

Pressing Ctrl+Alt+Delete opens the Windows Security screen.