Download Glossary of Computer Networking Terms and more Quizzes Computer Science in PDF only on Docsity!
Communications
process in which two or more computers or devices transfer data, instructions, and info. TERM 2
Sending device
DEFINITION 2 initiates an instruction to transmit data, instructions, or information TERM 3
Communication channel
DEFINITION 3 transmission media on which the data, instructions, or info travel TERM 4
Receiving data
DEFINITION 4 accepts transmission of data, instructions, and info. TERM 5
Text Messaging
DEFINITION 5 aka short messaging service (SMS); capability allows users to send and receive short text messages on a phone or other mobile device.
Picture Messaging
sending pictures and sound files, as well as short text messages to a phone or other personal mobile device or computer TERM 7
Video messaging
DEFINITION 7 users can send short video clips, about 30 seconds in length, in addition to all picture messaging services. TERM 8
Wireless Internet Access Point
DEFINITION 8 allows to connect wirelessly to the internet by using mobile computers, smart phones, and handheld game consoles. TERM 9
Hot Spot
DEFINITION 9 wireless network taht provides internet connections to mobile computers and other devices. Can check email, browse web, and surf internet. TERM 10
Cybercafe
DEFINITION 10 coffehouse, restaurant, and other location taht provides personal computers with internet access to costumers. Most charge per hour or per minute.
Groupware
software that helps groups of people work together on projects and share info over a network. Part of workgroup computing. TERM 17
Voice
Mail
DEFINITION 17 functions much like an answering machine, allows someone to leave a voice message for one or more people. Computer in system converts analog voice message into digital form and then stored in voice mailbox. TERM 18
Web
Services
DEFINITION 18 standardized software taht enables programmers to create applications taht communicate with other remote computers over the internet or over an internal business network. Businesses are primary users TERM 19
Network
DEFINITION 19 collection of computers and devices connected together by communication devices and transmission media. TERM 20
Value-added network (VAN)
DEFINITION 20 thrid party business that provides networking services for free
Local are network
is network that connects computers and devices in a limited geographical area such as home, school computers, office buildings, or closely positioned group of buildings TERM 22
Wireless LAN (WLAN)
DEFINITION 22 LAN that uses no physical wires. Communicates with a wired LAN for access to its resources. TERM 23
Metropolitan area network (MAN)
DEFINITION 23 a high-speed network that connects local areal networks in a metropolitan are such as a city or town and handles the bulk of communications activity across that region. TERM 24
Wide Area Network (WAN)
DEFINITION 24 network taht covers a large geographic area using a communications channel that combines many types of media such as telephone lines, cables and radio waves. Internet is the world's largest WAN TERM 25
Client/server network
DEFINITION 25 one or more computers act as a server; the other computers on the network request services from the server
Bus network
consists of a single central cable where all computers and other devices connect. TERM 32
Ring network
DEFINITION 32 cable forms a closed loop with all computers and devices arranged along the ring. TERM 33
Star network
DEFINITION 33 all of the computers and devices on the network connect to a central device. If one node fails, only that node is affected TERM 34
Inranet
DEFINITION 34 an internal network that uses internet technologies. Inranets make company info accessible to employees and facilitate working in groups TERM 35
Network Standard
DEFINITION 35 defines guidlines that specify the way computers access the medium to which they are attached, the types of mediums used, the speeds used on different types of networks, and the type of physical cable and the wireless technology used.
Ethernet
is a network standard that specifies no central computer or devices on the network (nodes) should control when data can be transmitted; each node attempts to transmit data when it determines the network is able to receive communications. TERM 37
Token Ring
DEFINITION 37 standard specifies that computers and devices on a network share or pass a special signal (token) in a unidirectional manner and in a preset order. TERM 38
TCP/IP
DEFINITION 38 Trasmission Control Protocol/Internet Protocol; netwrok standard that defines how messages are routed from one end of a network to the other. TERM 39
802.11 (Wi-Fi)
DEFINITION 39 developed by IEEE; series of network standards that specifies how two wireless devices communicate over the air with each other. TERM 40
Bluetooth
DEFINITION 40 protocol that defines how 2 bluetooth devices use short- range radio waves to transmit data. Must be with in 10 meters
Communications software
consists of programs taht help users establish a connection to another computer or network; manage the transmission of data, instructions, and info; provide an interfacefor users to communicate with one another. TERM 47
Dial-up line
DEFINITION 47 temporary connection that uses one or more analog telephone lines for communications. TERM 48
Dedicated software
DEFINITION 48 type of always on connection taht is established between two communications devices. TERM 49
ISDN
DEFINITION 49 (Integrated Services Digital Network) set of standards for digital transmission of data over standard copper telephone lines. Both ends of the connection mus have ISDN modem TERM 50
DSL
DEFINITION 50 (Digital Subscriber Line) transmits fast speeds on existing standard copper telephone wiring.
Fiber to the Premises (FTTP)
uses fiber optic cable to provide extremely high-speed internet access to asuers physical permanent location. 2 types= fiber to the home and fiber to the building TERM 52
T-carrier line
DEFINITION 52 is any of several types of long-distance digital telephone lines taht carry multiple signals over a singel communications line. Very fast data transfer rates TERM 53
T1 Line
DEFINITION 53 most popular T-carrier; used by businesses to connect to the internet TERM 54
Asynchronous Transfer Mode (ATM)
DEFINITION 54 service that carries voice, data, video, and multimedia at extremely high speeds. TERM 55
Communications device
DEFINITION 55 any type of hardware capable of transmitting data, instructionsk and information between sending device anda receiving device.
Wireless access point
central communications device that allows computers and devices to transfer data wirelessly among themselves or to transfer data wirelessly to a wired network. TERM 62
Router
DEFINITION 62 communications device that connects multi computers or other routers together and tansmits data to its correct destination on the network. TERM 63
Home network
DEFINITION 63 home users connecting to mulitple computers TERM 64
Bandwidth
DEFINITION 64 amont of data, instructions, and information taht can travel over a communications channel; the higher the bandwidth=more channels transmits TERM 65
Transmission media
DEFINITION 65 materials or substances capable of carrying one or more signals
broadband
transmits multi signals simultaneously. TERM 67
Twisted-pair cable
DEFINITION 67 one or more twisted pair wires bundled together. Each pair has 2 separate insulated copper wires that are twisted together. TERM 68
Noise
DEFINITION 68 an electrical disturbance that can degrade communications TERM 69
Coxial cable
DEFINITION 69 single copper wire surrounded by at least 3 layers (insulating material, woven or braided metal, and plastic outer coating) TERM 70
Fiber-optic cable
DEFINITION 70 dozens or hundreds of thin strands of glass or plastic that use light to transmit signals
