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FAQ
What is a bit?
A bit is a binary digit, the smallest increment of data on a machine. A bit can hold only one of two values: 0 or 1.
Because bits are so small, you rarely work with information one bit at a time. Bits are usually assembled into a group of 8 to form a byte. A byte contains enough information to store a character, like "h".
What is a hacker?
Originally, the term "hacker" described any amateur computer programmer who discovered ways to make software run more efficiently. In a broader sense, the term "hacker" describes anyone who writes computer programs, modifies computer hardware, or tinkers with computers or electronic devices for fun. Hackers will "hack" on a problem until they find a solution, always trying to make their equipment work in new, more efficient ways.
Recently, the popular definition of "hacker" has changed to describe a person who maliciously breaks into computer networks with the intent to snoop, steal data, or tamper with files.
What is a LAN (local area network)?
Local area networks (LAN) are computer networks ranging in size from a few machines in a single office to hundreds or even thousands of devices spread across several buildings. They function to link computers together and provide shared access to printers, file servers, and other services. LANs, in turn may be plugged into larger networks such as larger LANs or wide area networks (WANs), connecting many computers within an organization or to the Internet.
Because the technologies used to build LANs are extremely diverse, it is impossible to describe them except in the most general way. Universal components consist of the physical medium that connects devices, interfaces on the individual devices that connect to the medium, protocols that transmit data across the network, and software that negotiates, interprets and administers the network and its services. Many LANs also include signal repeaters, and bridges or routers, especially if they are large or connect to other networks.
The level of management required to run a LAN depends on the type, configuration, and number of devices involved, but in some cases it can be considerable. Forums for LAN discussion include newsgroups in the comp.dcom.lans.* hierarchy
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