Answer:1. Name Box: EX (MS Excel). The Name Box displays the address of the currently selected cell or the name of a defined range in a spreadsheet. Its function is to provide a quick way to refer to and navigate cells, particularly when working with complex spreadsheets or named ranges. 2. Canvas: AP (Adobe Photoshop). In Adobe Photoshop, the canvas is the digital workspace where you create and edit images. Its purpose is to provide a space to arrange, manipulate, and combine layers, images, and other elements to create a final image. 3. Formula: EX (MS Excel). A formula in Excel is an expression that performs calculations or other actions on data in a spreadsheet. The purpose of a formula is to automate calculations, analyze data, and generate results based on the values in different cells. 4. Transition: PP (MS PowerPoint). Transitions in PowerPoint are visual effects that occur when moving from one slide to the next during a presentation. Their purpose is to add visual interest and create a smoother flow between slides. They can range from simple fades to more complex animations.