A direct access storage device that is written and read by light. The most common types are CD, DVD and Blu-ray. As removable media, optical discs superseded the earlier magnetic disk cartridges ...

Data is stored in binary form on secondary storage devices ... represents a binary '0'. Optical media also come in different types: Solid state devices require little power, making them ideal ...

However, reports in the Japanese media suggest the industrial giant will “gradually cease production of optical disc storage media,” including Blu-Ray products. Regardless, for now ...

Secondary storage is needed to keep programs ... software and games are often distributed this way. Read (R) media are blank. An optical device writes data to them by shining a laser onto the ...

Unfortunately, it will also mark the end of optical media storage for the company; as Sony said (machine translation), there won’t be a successor model to the Blu-ray. This end-of-production ...

Optical storage was a popular and widespread solution, even becoming standard in laptops where device space is seriously ... bit storage density of optical media by wavelength multiplexing and ...