| hammer |
| (1) (Hammer) The code name for AMD's 64-bit CPU chips using 0.13 process technology. Expected in early 2003, the Clawhammer is the desktop version, which will become the 8th generation of the Athlon line. Expected in 2003, the Sledgehammer is the server version, which will go under the name of Opteron. Using silicon-on-insulator technology (SOI), both the Athlon and Opteron versions of Hammer provide backward compatibility for all 32-bit software that has been running on PCs since the mid 1990s. In the spring of 2002, Microsoft announced Windows support for these 64-bit chips. See Athlon and Itanium. |
| holographic storage |
| An optical technology that records data as
holograms that fill up the entire volume of a small optical cylinder no larger than one
millimeter by one centimeter. The hologram is created by two lasers. One laser is beamed
into the lithium niobate optical material through a matrix of LCD shutters, called a
"spatial light modulator." The shutters are opened or closed based on the binary
pattern of the page of data being stored. For example, using a matrix of 1,024 pixels on
each side, the page could hold a million bits. A reference laser is angled into and intersects with the data laser at the storage unit. If the angle and/or frequency is changed, another hologram can be created overlapping and filling the same space as the first hologram. In fact, 10,000 holograms (pages) can overlap each other. The page is read by directing just the reference laser back into the hologram. The light is diffracted into an original copy of the data which is sensed by a matrix of CCD sensors. Holographic devices could hold 50 million images or 10 billion pages of text and deliver them instantaneously. Although research in this area stems back to the 1960s, holographic storage was not announced as a commercial product until 2002, when InPhase demonstrated its Tapestry holographic disk drive and media. See Tapestry, PRISM and optical disk.    |
| honeypot |
| A server that is set up
to trick an intruder. Located either outside or inside the firewall,
it is designed to let crackers think they are in a production
machine. The applications running in the honeypot are set up similar
to a normal server except that the data being processed is phony. The honeypot is used to detect intruder's techniques as well as determine what may be vulnerable in the configuration of servers that are performing valid work. A "honeynet" is a network containing honeypots. A "virtual honeynet" is a honeynet that resides in a single server, but pretends to be a full network. See firewall. |