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Modem

A modulator-demodulator, commonly referred to as a modem, is a computer hardware device that converts data from a digital format into a format suitable for an analog transmission medium such as telephone or radio. A modem transmits data by modulating one or more carrier wave signals to encode digital information, while the receiver demodulates the signal…

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Overview

Speeds

Overall history

Dial-up

Leased-line modems

  • T1 T1 line

Broadband

Radio

Optical modem

Home networking

Null modem

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Map overview Semantic statistics

Modem

Nodes200
Edges199
Triples207
Avg. degree1.99
Density0.01
Components1

How this topic connects Entity context

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Modem

Top relations

related to Modem Over IP (Modem Relay) · 21
Modem → Annex, Both, Gateways, In, Internet, IP, MER, Minimum Essential Requirements, PSTN, Recommendation, RTP, SCIP-216, Secure Telephony, Simple Packet Relay Transport, SPRT, SSE, SSEs, State Signaling Events, The, The ITU-T
related to Mobile broadband · 16
Modem → EVDO, External, GPRS, HSPA, Huawei E1762, Huawei E220, Modems, Most GSM, Sierra, Sierra Compass, SIM, Some, UMTS, USB, WiMax, Wireless
related to Further reading · 13
Modem → Datapro Reports, Datapro Research, LAN Communications, Lock-gray-alt-2, Lock-green, Lock-red-alt-2, Market Overview, McGraw Hill, Modems, PC, PDF, September, Wikisource-logo
related to Popularity · 13
Modem → AOL, Australia, Canada, CEA, Dial-up, DSL, In, Internet, Software Publishers Association, The, The United States, US, Voiceband
related to Terminology · 12
Modem → Because, DHCP, Different, Early, Ethernet, IP, NAT, PC, Rather, This, USB, Wi-Fi
related to External links · 11
Modem → AT, AT Commands, BugswaveTelecommunications, Data, Facilities, Hayes-compatible Modems, Modems, Routers, Serial Data Communications Programming, Volume, WikibookInternational Telecommunication Union ITU
related to Compression · 10
Modem → As, EXE, Internet, ISPs, JPEG, Many, Netscape, Netzero/Juno, The, This
related to Radio · 10
Modem → Any, Bluetooth, GPS, Modern, NFC, PSTN, Such, This, WiFi, WiMax
related to Cloud-based Modems · 9
Modem → AWS, IP, Leveraging, Microsoft Azure, RTP, SIP Trunk, Voice-over-IP, VoIP, While
related to Speeds · 9
Modem → B/s, By, For, Historically, ITU-T, Mbit/s, Modems, Modern, The

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Important terminology

modems used line telephone use broadband data phone bit available device lines internet dial-up standard digital systems connection signal speeds

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
telephone or radioinstance ofis a computer hardware device that converts data from a digital format into a format suitable for an analog transmission medium0.80text
the Teletypewriter Exchange using the Bell 103 modeminstance ofdesigned to be built using readily available parts.Teletype machines were granted access to remote networks0.80text
V.21instance ofeventually becoming standards0.80text
V.22instance ofeventually becoming standards0.80text
Netzero/Junoinstance ofsome Internet service providers0.80text
Netscapeinstance ofsome Internet service providers0.80text
and others started using pre-compression to increase apparent throughputinstance ofsome Internet service providers0.80text
the ability to automatically sign in to time-sharing systems.Eventually this capability would be built into modemsinstance ofand features0.80text
no longer require a separate device.Controller-based modems vs. soft modemsPrior to the 1990sinstance ofand features0.80text
modems contained all the electronicsinstance ofand features0.80text
intelligence to convert data in discrete form to an analoginstance ofand features0.80text
USBinstance ofbut this design reduces the cost of a modem by moving most of the processing power into inexpensive software instead of expensive hardware DSPs or discrete components.Soft modem…0.80text

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    Min side: 3
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