Laser printer resolution is specified in terms of DPI, which stands for Dots Per Inch. DPI refers to the number of dots a printer can place within one square inch of space on a printed page. Higher DPI values generally result in sharper and more detailed printouts. Laser printers typically offer higher DPI resolutions, such as 600 DPI or 1200 DPI, leading to high-quality text and graphics output.

A plotter is an output device that prints vector graphics on hard copy. Unlike printers, which are designed for raster graphics and text, plotters are specialized devices used to produce high-quality drawings, diagrams, and other vector-based illustrations. Plotters use pens or other drawing tools to create precise lines and shapes on paper, making them particularly useful for applications that require detailed and accurate graphical output, such as architectural and engineering designs.

Actually, in MS PowerPoint (and most other word processing applications), the key combination to move down one paragraph is "Enter". Pressing the "Enter" key moves the cursor to the next paragraph. If you want to move the cursor down one line within the same paragraph, you can use the "Down Arrow" key. There isn't a specific default key combination to move down one paragraph in PowerPoint; it's more about using the "Enter" key to start a new paragraph.

COBOL (Common Business Oriented Language) is a high-level programming language primarily used for business, finance, and administrative systems within companies and governments. It is particularly useful for handling large-scale, data-centric applications in areas such as accounting, payroll, inventory management, and other business-related tasks. COBOL is known for its readability and ease of use, making it suitable for professionals working on applications that require extensive data processing and business logic. Despite being an older language, COBOL continues to be used in many legacy systems, especially in industries where stability and reliability are paramount.

Mail merge is a feature in Microsoft Word that allows you to create personalized documents, such as letters, envelopes, or labels, by combining a main document (containing generic content) with a data source (such as an Excel spreadsheet or a database) that contains specific information for individual recipients. This feature is commonly used for creating mass mailings or personalized communication materials.

The "@" symbol is used to separate the username of an email address from the domain name of the Internet Service Provider (ISP) or email service provider. For example, in the email address "username@example.com," "username" is the username of the email account, and "example.com" is the domain name of the email service provider, separated by the "@" symbol.