Storage Devices

                                                    Storage Devices


                                                                   CD ROM


 (Compact Disc, read-only-memory) is an adaptation of the CD that is designed to store computer data in the form of text and graphics, as well as hi-fi stereo sound. The original data format standard was defined by Philips and Sony in the 1983 Yellow Book. Other standards are used in conjunction with it to define directory and file structures, including ISO 9660, HFS (Hierarchal File System, for Macintosh computers), and Hybrid HFS-ISO.

                                                           
                                                                      USB

USB flash drives are computer devices designed to fit on key rings. These small drives are the perfect solution for portable storage. Many high schools and universities now require students to bring a USB flash drive to class to store assignments. As the technology has advanced, the price has lowered to make the flash drive an option for anyone who needs to transport data.

                                                       External Hard drive


External hard drives are used to back up or store important information separately from the main internal hard drive in order to avoid compromise by online or offline activities. They are also used to save sensitive documents, large music files, DVD images, movies, disk images, and even backup contents of the main internal hard drive.