This document discusses various aspects of computer fundamentals including computer memory, hardware maintenance, printers, keyboards, mice, cookies, specialized maintenance, and temporary files. RAM and hard drives make up computer memory and impact performance. Preventative maintenance like regular cleaning can reduce repairs. Printers need cleaning to maintain print quality and laser printers should be cleaned when changing toner. Keyboard and mouse choices should consider ergonomics and wireless options. Cookies are small text files used by websites to identify computers. Specialized maintenance includes replacing parts like processors or hard disks. Temporary files free up memory and prevent data loss.