This document is the user manual for Dell™ portable computers, providing important information on how to use the computer, precautions that may cause hardware damage or data loss, and warnings that may result in property loss, personal injury or even death. The document also includes a list of abbreviations and acronyms, and clarifies that the references to Microsoft® Windows® operating system in this manual do not apply to Dell™ n Series computers. Additionally, it states the copyright and trademark ownership of Dell Inc. and other companies mentioned in the document.