logical
(1) Refers to a user’s view of the way data or systems are organized. The opposite of logical is physical, which refers to the real organization of a system. For example, a logical description of a file is that it is a collection of data stored together. This is the way files appear to users. Physically, however, a single file can be divided into many pieces scattered across a disk.
(2) Refers to any Boolean logic operation.
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- logical drive
A part of a physical disk drive that has been partitioned and allocated as an independent unit, and functions as a separate drive altogether. For example, one physical drive can be partitioned into drives F:, G:, and H:, each representing a separate logical drive but all still part of the one physical drive. Using the […]
- Logical Topology
Also called signal topology. Every LAN has a topology, or the way that the devices on a network are arranged and how they communicate with each other. The way that the workstations are connected to the network through the actual cables that transmit data — the physical structure of the network — is called the […]
- look-and-feel
Refers to the general appearance and operation of a user interface. This is a hot legal issue because some software companies are claiming that competitors who copy the look-and-feel of their products are infringing on their copyright protection. To date, the courts have not ruled definitively on this matter.
- Loop
One of the three basic logic structures in computer programming. The other two logic structures are selection and sequence. In a loop structure, the program asks a question, and if the answer requires an action, it is performed and the original question is asked again until the answer is such that the action is no […]
- loopback
(1) In telecommunications, loopback is a method used to perform transmission tests of the lines at the switching center. (2) Loopback is a communication channel with only one endpoint. TCP/IP networks specify a loopback that allows client software to communicate with server software on the same computer. users can specify an IP address, usually 127.0.0.1, […]