The document defines and lists various computer software applications, input and output devices, storage media, operating systems, and guidelines for proper computer care. It includes definitions for word processing, spreadsheet, database, and other application and system software, as well as input devices like keyboards and output devices like printers. It also discusses storage media such as hard disk drives, floppy disks, CD-ROMs and DVDs, and provides tips for maintaining computer systems and disks, as well as ergonomic computer use.