Answer:

Introduction:
When working with a computer, there are various ways to interact with the graphical user interface (GUI) using a mouse. One common action is to press and hold the left mouse key while moving the mouse around the screen. This action has a specific term associated with it.

Term:
The term used to describe the action of pressing and holding the left mouse key and moving the mouse around the slide is Dragging. It is a fundamental action in computer interfaces and is widely used to move objects, select text or files, and perform other tasks.

Explanation:
When you press and hold the left mouse key, you are essentially initiating a "click and hold" action. This action allows you to interact with various elements on the screen, including objects, files, and text. By moving the mouse while holding down the key, you can perform different operations depending on the context.

Examples:
There are several scenarios where dragging is commonly used:
- Moving objects: In graphical applications, dragging is often used to move objects around the screen. For example, in a presentation software, you can select a slide element (such as an image or a textbox) by clicking and holding the left mouse key, and then move it to a different position on the slide by dragging it.
- Selecting text: When working with text editors or word processors, dragging the mouse while holding down the left key allows you to select a range of text. By dragging from the starting point to the ending point, you can highlight and select the desired text.
- Selecting files: In file explorers or desktop interfaces, dragging the mouse while holding down the left key enables you to select multiple files. By dragging the mouse cursor over the files you want to select, you can create a selection box that encompasses the desired files.

Conclusion:
The term used when you press and hold the left mouse key and move the mouse around the slide is Dragging. This action is fundamental for interacting with graphical user interfaces and is commonly used to move objects, select text, and perform various tasks.