Modem Shopping Guide

m-link">of computer modems, like US Robotics, Hayes, 3com,
A modem (from modulate and demodulate) is aXircom, Creative Labs and many more.
device that modulates an analogue carrier signal toWhat is Mbps?
encode digital information, and also demodulates suchMbps stands for millions of bits per second or
a carrier signal to decode the transmitted information.megabits per second and is a measure of bandwidth
Faster modems are used by Internet users every day,(the total information flow over a given time) on a
notably cable modems and ADSL modems. Intelecommunications medium. Depending on the medium
telecommunications, "radio modems" transmit repeatingand the transmission method, bandwidth is also
frames of data at very high data rates oversometimes measured in the Kbps (thousands of bits or
microwave radio links.kilobits per second) range or the Gbps (billions of bits
What is a Computer or Laptop Cable Modem?or gigabits per second) range.Although the bit is a unit
While the terms Computer or laptop are often usedof the binary number system, bits in data
interchangeably, A cable modem is a device thatcommunications are discrete signal pulses and have
enables you to hook up your personal computer. Ahistorically been counted using the decimal number
modem (from modulate and demodulate) is a devicesystem.
that modulates an analogue carrier signal to encodeDSL or ADSL Modem. Features and Description! DSL
digital information, and also demodulates such a carrieror ADSL modems are rarely internal to the computer
signal to decode the transmitted information. Fasterbut instead are wired to the computer's Ethernet port,
modems are used by Internet users every day,or occasionally its USB port, while voiceband modems
notably cable modems and ADSL modems. Inare usually built inside the computer. DSL modems are
telecommunications, "radio modems" transmit repeatingintended for particular protocols and sometimes won't
frames of data at very high data rates overwork on another line even from the same company,
microwave radio links. Some microwave modemswhile most voiceband modems use international
transmit more than a hundred million bits per second.standards and can "fall back" to find a standard that
Optical modems transmit data over optic fibers. Mostwill work.
intercontinental data links now use optic modemsFeatures
transmitting over undersea optical fibers.• Router functionality that uses Network Address
Computer modem comes in a range of differentTranslation (NAT) to share the connection
prices. You can find some form of cheap computer• An 802.11b or 802.11g wireless access point
modems from as little as Rs.800 to over Rs.80,000• Voice over IP functionality including Quality of
Price ranges for computer modems general dependService (priority control for data flows between users)
on the manufacturers and the type of ISP connection• Dynamic Host Configuration Protocol (DHCP)
that you have. There are many quality manufacturersserver.