Hard disk mechanisms fail ... AC bills can be rather high. This diagram illustrates the difference between dye-based and inorganic recordable optical discs. The advent of relatively unstable ...

The most common types are CD, DVD and Blu-ray. As removable media, optical discs superseded the earlier magnetic disk cartridges because they weigh less, have higher capacities and are not subject ...

Starting while at a Silicon Valley startup, Siros Technologies, we explored an alternative approach extnending current optical disk technologies. Here, a spinning disk is written and read by a focused ...

Conventional optical ... disk that was 1.2 mm thick, and had a 0.8-μm and 5-μm track and layer pitch, respectively. Figure 3: Single-beam two-photon recording system and schematic diagram.

A model of ultraviolet and optical emission from the tidal disruption event AT 2018hyz is shown in this schematic diagram. As an accretion disk forms quickly after the TDE, it generates x-ray emission ...

An earlier removable, rewritable optical disk that also used magnetic technology. Introduced in 1985, magneto-optic (MO) media and drives are no longer manufactured. Refurbished drives and media ...

Using 3D storage techniques, scientists at the University of Shanghai for Science and Technology developed an optical disk capable of accommodating 1.6 petabits of data (that's 1.6 million gigabits).

These LDDs, part of National's high-speed LMH family of amplifiers, were specifically designed for combination DVD/CD recorder optical storage devices used in desktop, notebook and consumer DVD video ...