HARDDISK
What Is a Hard Disk?
A hard disk or drive is the part of your computer responsible for long-term storage of information. Unlike volatile memory (often referred to as RAM) which loses its stored information once its power supply is shut off, a hard disk stores information permanently, allowing you to save programs, files, and other data. Hard disks also have much greater storage capacities than RAM.
320 GB Write Once Optical Disc by TDK
TDK Corp. developed a write-once optical disc with an impressive capacity of 320 Gbytes. This goes well above the capacity of a Blu-ray disc that has a total of 25 Gbytes per layer. The means of writing and reading data from this optical disc that requires a blue-violet semiconductor laser with an oscillation wavelength of 405nm and an objective lens with a numerical aperture (NA) of 0.85, that are currently used for the Blu-ray discs. TDK recording format in 2006 that had six layers, each of 33.3 Gbytes in capacity, adding up to the 200 Gbytes total capacity. As the number of recordable layers increase, the signals of each layer get weaker, requiring improvement in the transmittance of the layers. The transmittance of the outermost layer, that needs to be the highest, now reaches more than 90%, while the 2006 prototype barely had 80% to 90%. The layer architecture of the new disc comes as – a cover layer and a hard coat layer are formed on recording layer (the innermost L0 layer to the outermost L9 layer), while the L0 layer features a Si-Cu alloy, which is inorganic.
Am I dreaming??? this is the new iphone 4G concept. The design is inspired in the MacBook Air and it would probably offer us everything we’re missing in current iPhone
models. In the picture here the iPhone 4G is engaged in videochat while Google is quietly displaying the GPS location of your friends. Naturally this iPhone has a front camera, a better processor and it knows how to multitask.
silver,gold,bronze
Now this is a nice little present for everyone with a flaw for guns. Or for firstperson-shooters. For example I can imagine Sony giving one of these bullet-shaped USB drives with every copy of Killzone 2, because it fits so well. The bullet-flashdrives are available in capacities ranging from 1 to 32 GB and are produced in China (where else). So far I haven’t found a store offering them, but I am pretty sure some gadget shop will have them in their shelves pretty soon. They measure 2.5″ x 0.6″ x 0.6″ (65mm x 16mm x 16mm) and there are three different colors
