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company that offers internet access to individuals businesses and smaller ISPS. It operates routers, communication equipment and other network devices that handle the physical aspects of transmitting and receiving data between their subscribers and the Internet
primary protocol suite responsible for message transmission on the internet. Provides protocol standard for the internet that is public, free, extensible and east to implement.
Static IP address
Permanently assigned IP address. Computers on the internet that act as servers usually, ISPS, websites, web hosting services and email servers that always need to be found at the same address
Private IP address
a non- routable IP that can be used within a LAN, but not for internet data transport
Routable IP address
one which can be accessed by packets on the internet. If your computer has a private IP address it is essentially hidden from hackers.
Device that modulates an analog carrier signal to encode digital information and also demodulates such a carrier signal to decode the transmitted information. The goal is to produce a signal that can be transmitted easily and decoded to reproduce the original digital data. Modems can be used over any means of transmitting analog signals, from light emitting diodes to radio.
Voice band modem
Most familliar modem that turns the digital data of a personal computer into modulated elecrical signals in the voice frequency range of a telephone channel. These signals can be transmitted over telephone lines and demodulated by another modem at the receiver side to recover the digital data
Provides a way to transfer files from one computer to another over any TCP/IP network, such as LAN or the internet. The purpose for FTP is to make it easy to upload and download computer files without having to deal directly with the operating system or the file management system of a remote computer
are intended to work on LANS to monitor and direct packets being transport from one device to another. It can also connect to the internet through a DSL, cable, or satellite modem. It can offer excellent security.
fixed internet connection that uses a voiceband modem and telephone lines to transports data between your computer and your ISP
is a high speed, digital, always on, internet access technology that runs over standard phone lines.
a device that modulates the data signal from a computer into a frequency band that can be carried to the satellite dish where it is converted to another frequency amplified transmitted
Worldwide interoperability for microwave access is an ethernet compatible network standard designated as IEEE 802.16. Used in rural areas where cable service is not available and where cusotmers are too far away from a telephone switching station for dsl service
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