A CDE Definition
(Universal Media Disc) The optical disc used in Sony's PlayStation Portable (PSP). Officially the ECMA-365 standard, a UMD is a read-only medium for games and movies. Video is encoded in H.264, and audio is encoded in ATRAC3plus. See PlayStation.
A UMD Cartridge
A video game console from Sony that was introduced in the U.S. in 1995. CD-ROM based and using a 32-bit MIPS CPU, the original PlayStation was the first of a family of desktop and handheld units. A more advanced DVD-based PlayStation 2 (PS2) debuted in 2000 along with the PS one, a smaller model that could be used in cars with a power adapter. See PS one and PS2.
The PlayStation 3 (PS3), introduced in late 2006, used a considerably faster processor and high-definition Blu-ray drive (see PS3). The PlayStation 4 came out in 2013 (see PS4).
The Portable PlayStation
A handheld PlayStation Portable (PSP) came out in 2005 that uses Sony's Universal Media Disc (see UMD) and Memory Stick PRO Duo card for storage. The PSP also plays music and videos and displays photos. See video game console, PS2 and PS3.
The Original PlayStation
First Handheld Model
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