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(1) The range of a wireless (Wi-Fi) network. See Wi-Fi hotspot.

(2) An icon or part of a larger image used as a link to another document or file. When the hotspot is clicked, the linked material is searched for and displayed. See hypergraphic and image map.

(3) The exact part of an icon or screen pointer that is sensitive to selection. A hotspot may be part of a larger image. For example, an image may have several hotspots, one for each of its components. When clicked, a greater explanation of the component is produced. Where hotspots begin and end determine how easy they are to select.

The screen pointer also has a hotspot, which is a small number of pixels that make contact with the icon's hotspot. For example, the tip of an arrow or finger pointer or the crosspoint of an X-shaped pointer may be the pointer's hotspot.

(4) A network node that is processing at its maximum or is backlogged due to an excessive number of transactions.

(5) The instructions in a program that are executed the most in actual operation. To improve execution performance, the hotspots are the routines that should be refined.

(6) (HotSpot) A Java compiler from Sun that optimizes the parts of the program that are executed most frequently (the hotspots).

(7) (hot spot) An area with excessive heat in the datacenter. Hot spots are typically found near server racks that are not cooled properly. Contrast with "cold spot," which is an area that is too cool, often due to being located close to air conditioning vents.
References in periodicals archive ?
iPass Inc (Nasdaq:IPAS), a provider of mobile services for enterprises and telecom service providers, announced on Wednesday the launch of iPass Hotspot Finder.
Search by name, city or type of place - restaurants, coffee houses, hotels, airports, shops, salons, gyms, studios, theaters, sports venues and many other hotspots.
Vex, which has 800 hotspots in Brazil at present, confirmed it is planning to install 3,000 hotspots in the country by the end of next year.
Intel Centrino Mobile Technology Hotspot Finder http://support.
For WAN providers, hotspots represent another market opportunity for selling Internet access.
Although the analysis is still limited--it doesn't include invertebrates, for example, or marine vertebrates--the authors argue that it is comprehensive enough to justify a substantial expansion of the original hotspots conservation strategy.
In the far southern Atlantic, a string of hotspots - Tristan, Gough, Discovery and Shona - align with the southern Mid-Atlantic Ridge, and may be contributing magma supplies that maintain the ridge ([ILLUSTRATION FOR MAP OMITTED] opposite).
The jets correspond to known hotspots at the outskirts of these galaxies, placing the relationship between jets and hotspots on a surer footing.
Smartphones with embedded mobile hotspots have already cut into shipments for battery-powered mobile hotspot devices.
Most earth scientists concur that hotspots do move, but the question is: How much does one hotspot move with respect to the others, and is this motion significant enough to cause problems for scientists who rely on hotspots as points of reference?
The company also operates the industry's most comprehensive directory of free HotSpots which currently lists more than 20,000 free wireless Internet locations worldwide.
com, a subsidiary of Anacapa Holdings Ltd, an online marketing company, announced on Tuesday (24 January) that the number of free Wi-Fi HotSpots in Europe increased in 2005, according to data from JiWire, Inc, a provider of Wi-Fi HotSpot information and services.