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