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