SD cards are small, external memory devices that can be inserted into most cell phones to expand their memory capabilities. These devices come in several different sizes and can hold anywhere from 512MB of data up to 32GB or more. Most often the types of files stored on memory cards for cell phone use are music, pictures, video, voice recordings and extensice contact lists.
Music
Music is one of the most popular files that are transferred to an SD card on a cell phone. As cell phones become more and more advanced, they can be used to take the place of other portable devices, such as an MP3 player.
Pictures
Pictures are another popular file type. Most phones these days incorporate a camera. The SD card allows the storage of multiple picture files while keeping the internal memory free for regular phone processes.
Videos
Videos can be taken with most phones that are equipped with cameras. These files can quickly overwhelm the internal memory in a phone. An SD card expands memory so that videos can be taken and stored until they can be transferred to a PC or forwarded to others via media messaging or email.
Contact Lists
Extended contact lists can also be stored on SD cards, though the internal memory reserved for this function is large. People in the business world make large numbers of contacts. Having an expanded memory helps manage larger contact lists.
Voice Recordings
Voice recordings can also be stored on SD memory cards as well. Voice recordings are one of the most useful functions of a cell phone, allowing users to instantly record reminders at the push of a button.
Tags: cell phone, contact lists, internal memory, also stored, cell phones