Internal memory (RAM): All PCs including handhelds have internal storage in the form of computer chips. The main memory is known as RAM, an abbreviation for RAM (random-access memory). The term RAM refers to read and write memory; that is ,you can both write data into RAM and read data from RAM. Known as volatile memory, RAM requires a steady flow of electricity to maintain its contents. As soon as the power is turned off, whatever data was in RAM is lost, ROM is measured in megabytes and the amount of handheld PCs varies widely (currently anywhere from 2MB to 32MB) depending on the operating system and applications.
LCD type: There are two basic types of color LOD displays. Thin film transistor (TFT) or active-matrix displays produce color images that are as sharp as traditional CRT display (your desktop PCs monitor), but the technology is expensive. Passive matrix is less expensive, but images are not as crisp and bright .Newer passive matrix technologies such CSTN and DSTN are closing the gap with active matrix displays.
MP3 player: It derives from the file extension for audio files that use MPEG, audio layer 3 compression .Since this is the most common format ,it has become shorthand for