The IBM designation for families of half-inch magnetic tape drives typically used on mainframes and AS/400s. The 3480 drives use 18-track cartridges at 38000 bpi to yield 200MB. The 3490 uses built-in compression to obtain 400MB. The 3490e records 36 tracks and uses longer tape to hold 800MB. Tape libraries are available that hold from a handful to thousands of cartridges.
The 3490 drives provide transfer rates of at least 3MB per second. Drives are available that use the ESCON and Fast SCSI-2 interfaces to obtain up to 20MB/sec.
One of the largest networking companies in the world. The name is derived from the prefixes of three terms — computer, communication, and compatibility. The company was founded in 1979 by Dr. Robert Metcalfe, one of the co-inventors of Ethernet. 3COM offers a wide array of products, with special emphasis on hubs, switches, routers, modems, […]
A technology that supports photo-realistic graphics, full-motion video, and CD-quality sound. The first applications of this technology were stand-alone devices used for playing games, but the technology is beginning to find its way into PCs in the form of expansion boards.
- 3D Stereo technology
A technology that provides a more realistic view of 3D game visuals providing a more real 3D scene that allows you to better interact with the on-screen media. 3D Stereo technology on the PC requires both a software driver and a hardware device, such as stereo glasses, virtual reality hardware, or 3D displays. NVIDIA also […]
- 3D space ball
In virtual reality environments, 3D space ball is a sensor ball device used to move 3D models. It works similar to how users interact with a mouse on a computer system.
3G is an ITU specification for the third generation (analog cellular was the first generation, digital PCS the second) of mobile communications technology. 3G promises increased bandwidth, up to 384 Kbps when a device is stationary or moving at pedestrian speed, 128 Kbps in a car, and 2 Mbps in fixed applications. 3G will work […]