Sony Memory Stick technology and background

Sony are the only consumer goods manufacturer to have stuck with their own proprietary removable memory card. Their Memory Stick brand, introduced in 1998, actually covers a variety of different formats that have evolved as devices have changed, getting physically smaller but demanding more storage capacity. As with other memory card formats, the cards are made with solid state memory that retains the data once it’s removed from a device, so is used to backup data or transfer it to a PC. The term Memory Stick (MS) is a Sony trade mark for their memory cards and should not be confused with USB memory keys, or thumb sticks. They are often referred to as memory sticks but this is a generic term. Sony introduced their own format as a way of tying customers into their products, and are able to do this because they are strong in a breadth of consumer product markets where a method of transferring information such as pictures, videos, music and general computer files is required. MS cards are used directly in digital cameras, camcorders, mp3 players, Playstation game consoles and Sony Ericsson mobile phones. To enable the contents to be read by PCs, USB card readers can be used, or adapters that allow a Memory Stick to mimic another memory card format. These adapters for Memory Stick to PC Card or (CF) conversion are more expensive than those required for some other card formats as they need a controller chip to facilitate the translation. The table below gives a quick reference to the essentials of the different formats that have evolved. The original format...

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