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computer communications describes
a process in which two or more computers or devices transfer data, instructions, and information
all types of computers and mobile devices serve as
sending and receiving devices in a communications system
describe standardized software that enable programmers to create applications that communicate with other remote computers
a collection of computers and devices connected together via communications devices and transmission media
advantages of using a network include
facilitating communications, sharing hardware, sharing data and information, sharing software, and transferring fudns
one or more computers acts as a server while the other computers on the network are clients
aka host computer, controls access to network resources and provides a centralized storage area
simple network that typically connects fewer than 10 computers, called a peer, that have equal responsibilitiies and capabilities
Internet peer-to-peer network onwhich users access each other's hand dissk directly and exchange files over the Internet
defines guidelines that specitfy the way computers access a medium, the types(s) of medium, the speeds on different types of networks, and the type of physical cable or wireless technology used
network communications standards include
Ethernet, token ring, TCP/IP, 802.11 (Wi-Fi), Bluetooth, UWB, IrDA, RFID, WiMAX, and WAP
specifies that no central computer or device on the network should control when data can be transmitted; that is, it allows nodes to contend for access to the network
aka ultra-wideband, specifies how two USB devices use short-range radio waves to communicate at high speeds
aka 802.16, is a newer network standard developed by IEEE that specifies how wireless devices communicate over the air in a wide area
purpose of communications software is
it helps users establish a connection to another computer of newtwork, manages the transmission of data, instructions, and information, and provides an interface for users to communicate with one another
aka Fiber to the Premises, used fiber-optic cable to provide extremely high-speed Internet access to a user's physical permanent location. Two types: FTTH (home) and FTTB (building)
a long-distance digital telephone line that carries multiple signals over a single communications line
aka Asynchronous Transfer Mode, a service that carries voice data, video, and multimedia at extremely high speeds
hardware capable of trasmitting data between a sending device and a receiving device
converts a computer's digital signals to analog signals for transmission over standard telephone lines
aka broadband modem, a digital modem that sends and receives digital data over the cable television network
uses the cell phone network to connect to the Internet wirelessly from mobile computers and devices
network card is
an adapter card, PC Card, ExpressCard module, USB network adapter, or flash card that enables a computer of device that does ot have built-in networking capability to access a network
connects multiple computers or other routers together and transmits data to its correct destination to the network
most home networks use
a Wi-Fi network, which sends signals through the air at distances up to 1,500 feet in some configurations
consists of a single copper wire surrounded by at least three layers: an insulating material, a woven or braided metal, and a plastic outer coating
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