Well, that depends on whom you ask. A person with a strong telecommunications background will most likely tell you a network consists of PBXs, tie trunks, adjunct systems, PRI lines, T1s, handsets, and miles of fiber and copper cable. A person with a strong data background will probably tell you a network ...
z1. Introduction
An increasing number of people are using the Internet and, many for the first time, are using the tools and utilities that at one time were only available on a limited number of computer systems (and only for really intense users!). One sign of this growth in use has been the significant ...
The domain name system (DNS) stores and associates many types of information with domain names, but most importantly, it translates domain names (computer hostnames) to IP addresses. It also lists mail exchange servers accepting e-mail for each domain. In providing a worldwide keyword-based redirection ...
Computer networking is the scientific and engineering discipline concerned with communication between computer systems. Such communicating computer systems constitute a computer network and these networks generally involve at least two devices capable of being networked with at least one usually being ...
A router is a computer networking device that forwards data packets across a network toward their destinations, through a process known as routing. Routing occurs at Layer 3 (the network layer i.e. Internet Protocol (IP)) of the OSI seven-layer protocol stack. Glen Skidmore was the first person to ...
A network bridge connects multiple network segments at the data link layer (layer 2) of the OSI model . Bridges are similar to repeaters or network hubs, devices that connect network segments at the physical layer, however a bridge works by using bridging where traffic from one network is managed ...
A network switch (or just switch) is a networking device that performs transparent bridging (connection of multiple network segments with forwarding based on MAC addresses) at up to the speed of the hardware. Common hardware includes switches, which can connect at 10,100, or 1000 megabits per second, ...
Here are some maintenance log entries from a major airline – or so the email says, showing the problems reported by pilots (P) and solutions recorded by mechanics (S).
It’s probably true. You couldn’t make these things up.
P: Left inside main try almost needs replacement.
S: Almost replaced left ...
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