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DEC Rainbow 100 as a museum piece in Citilab Rainbow 100 floor model and software packages. The Rainbow 100 is a microcomputer introduced by Digital Equipment Corporation (DEC) in 1982. This desktop unit had a monitor similar to the VT220 and a dual-CPU box with both 4 MHz Zilog Z80 and 4.81 MHz Intel 8088 CPUs.
5D optical data storage (also branded as Superman memory crystal, [1] a reference to the Kryptonian memory crystals from the Superman franchise) is an experimental nanostructured glass for permanently recording digital data using a femtosecond laser writing process. [2]
The white screen of death that appears on Dell computers. A White Screen of Death appears on several other operating systems, content management systems, [6] and on some BIOS, such as from Dell. It can be seen on iOS 7, and also when a white iPhone 5 or later or a white 5th generation iPod Touch screen freezes. Everything on the screen but the ...
An optical disc is a flat, usually [note 1] disc-shaped object that stores information in the form of physical variations on its surface that can be read with the aid of a beam of light. Optical discs can be reflective, where the light source and detector are on the same side of the disc, or transmissive, where light shines through the disc to ...
Disc rot is the tendency of CD, DVD, or other optical discs to become unreadable because of chemical deterioration. The causes include oxidation of the reflective layer, reactions with contaminants, ultra-violet light damage, and de-bonding of the adhesive used to adhere the layers of the disc together.
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A 130 mm 2.6 GB magneto-optical disc A 230 MB Fujitsu 90 mm magneto-optical disc. Early drives are 130 mm and have the size of full-height 130 mm hard-drives (like in the IBM PC XT ). 130 mm media looks similar to a CD-ROM enclosed in an old-style caddy , while 90 mm media is about the size of a regular 3 1 ⁄ 2 -inch floppy disk , but twice ...
The 1541 was priced at under US$400 at its introduction. A C64 with a 1541 cost about $900, while an Apple II with no disk drive cost $1,295. The first 1541 drives produced in 1982 have a label on the front reading VIC-1541 and an off-white case to match the VIC-20.