Network Interface Card
 |
US $6.99
COMPUTER NETWORKS AND INTER CONNECTION OF COMPUTERS
We know that interconnection between computers are essential for the proper working of a big organisations.Computers are interconnected inorder to share the informations between them..Here iam going to simply describe the necessity of computer networks , advantages of networks and methods of interconnecting computers.
How to copy informations in a computer to another?? We can use a CD , pendrive etc.. But is these methods possible for massive transactions of data??
NO…NO. For that, there comes the networking of computers.Exchange of informations between computers is essential in offices, bank,research centers etc.. Connecting computers together so as to exchange informations easily and rapidly is called Networking.
For detailes visit
http://expertscolumn.com/content/computer-networking-and-methods-inter-connecting-computers
ADVANTAGES OF NETWORKS
A) Resource sharing
Many of the peripherals used along with a computer are costly.When we connect uses many computers, we have to connect many peripherals.This expense is very large .This problem is solved by networking. Suppose there is only printer with computer A.If we want to print the data from a computer B, which is interconnected with computer A.When we give print command to computer B, it sends the print command along with the data to computer A.Thus we get print through computer A.
We can connect one computer to internet through telephone line and connect other computers through network,share internet services available in the computer having internet connection.
B) Centrally Controlled Informations
For some computers under network,there is no need to copy a data to all computers.Just copy the data in one computer and it can be accessible from other computers in the network.But some of the data may be of confidential in nature.It cannot be allowed to others to access that data.Some control methods have to be adopted.There should be a facility to decide what information is accessible by whom and what kinds of access rights can be provided.A person is made responsible to arrange and control the computers in a network in this manner.
C) Security of Information
The informations stored in computers may be lost due to machine failure, virus infections etc…Imagine that a situation of losing datas of a bank!!!!!! This kind of important informations can be copied to other computers through network.If the informations stored in a computer is lost, the copy stored in other computers will be safe.The network is utilized by defence institutions, bank,software development companies, research institutions etc in this manner.
D) Media For Communication
There are different ways to utilize network as communication media. WWW, E-mail,video conferencing etc are some of the examples.As a media, main advantage of networking is that we can share audio,video,pictures etc
TYPES OF NETWORKS
Let’s look what are the different types of network, how they can be implemented etc
If the distance between two computers is short, the network is called LAN(Local Area Network) The network within a room , a building or an organisation come under the category of LAN
The network constituted by connecting computers at distant areas is called WAN ( Wide Area Network).the computers at thousands of kilometer away from each other can be member of WAN.They use satellites or optical fibre for information exchange…
HOW COMPUTERS ARE CONNECTED?????
We know that informations are transferred between computers in the form of bits. There are many media used to transmit such bits..The following are some of the transmission media..
A) Coaxial Cables
Computer networks can be materialized using coaxial cables.The informations are transmitted in the form of electric signals through this cable.
B) U.T.P Cables
Un-shielded Twisted Pair Cable is a set of twisted paired wires. They are largely used to design small networks.They also transmit informations in the form of electric pulses….
C) Fibre Optic Cables
Informations are transmitted in the form of light rays in the fibre optic cables.These cables can transform large amount of data at a high speed.They are used for constructing large networks.
D) Infrared Rays
Infrared rays are electromagnetic rays with frequency larger than red light.If the distance between the computers is very short, it can be used.But there should not be any obstruction between computers.The advantage of this is there is no need of cables.This medium is not using today.
E) Radio Waves
When radio waves are used as the medium, obstructions are less affected to data transfer than infrared..In addition radio waves are better for networking computer situated far apart.
NETWORK INTERFACE CARDS
If a computer is to be attached to the network, a special circuit board is to be fixed in to the computer.It is the circuit board helps our computer to communicate with other computers through the network media..This is called network interface card.The cable used for networking are connected in to this card.
NETWORK PROTOCOLS
All computers in a network need not be same type.Hence the computers in the network should follow certain rules and regulations for proper exchange of informations..These rules are called network protocols.Today widely used protocol is TCP/IP.
IP ADRESS
Each computer in a network has its own address.If the computer belongs to TCO/IP, the address is called IP address.Computers are identified using these addresses for sending and receiving informations.
Here I just mentioned about basic concepts of computer networking.
About the Author
Hai,
iam SYAMMOHAN. iam a n engineering student.Iam an Indian
|
|
NOKIA 1000Base-T Network Interface Card NIF4405FRU $1041.97 NOKIA 1000Base-T Network Interface Card NIF4405FRU |
|
|
HP / Compaq BL30p Network Interface Card 361745001 $110.1 HP / Compaq BL30p Network Interface Card 361745001 |
|
|
Network Monitoring Interface Card $76.47 High Quality Content by WIKIPEDIA articles A network monitoring interface card or NMIC is similar to a network card (NIe. However, unlike a standard network card, an NMIC is designed to passively (and silently) listen on a network. At a functional level, an NMIC may differ from a NIC, in that the NMIC may not have a MAC Address, may lack the ability to transmit and may not announce its presence on a network. Advanced Network Monitoring Interface Cards have features that include an ability to offload CPU intensive processing from a systems CPU, accurate time measurement, traffic filtering, and an ability to perform other application specific processing. NMICs are typically used in intrusion detection and prevention (IDS/IPS), lawful interception, flow analysis, network monitoring, and protocol analyzer systems. Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 112 Publication Date: 2010/06/15 Language: English Dimensions: 5.98 x 9.01 x 0.26 inches |
|
|
Intel PWLA8492MT Dual Port PCI-X interface network card NIC $40.53 Intel PWLA8492MT Dual Port PCI-X interface network card NIC |
|
|
Cisco Interface Card 4-Ports E1/PRI Network Adapter AS53-4CE1 $1950 Cisco Interface Card 4-Ports E1/PRI Network Adapter AS53-4CE1 |
|
|
Transition Networks Fiber Gigabit Ethernet Network Interface Card NGXELC01 $378.87 Transition Networks Fiber Gigabit Ethernet Network Interface Card NGXELC01 |
|
|
SUN Network Interface Card PT Quad Port Low Profile 594402401 $321.35 SUN Network Interface Card PT Quad Port Low Profile 594402401 |
|
|
Cisco Interface Card 4-Ports T1/PRI Network Adapter 4-Ports T-1 AS534CT1 $114.35 Cisco Interface Card 4-Ports T1/PRI Network Adapter 4-Ports T-1 AS534CT1 |
|
|
HP NC7170 Network Interface Card Dual Port PCI-X 313881B21 $41.11 HP NC7170 Network Interface Card Dual Port PCI-X 313881B21 |
|
|
Transition Networks Fiber Gigabit Ethernet Network Interface Card NGXELC1001 $444.38 Transition Networks Fiber Gigabit Ethernet Network Interface Card NGXELC1001 |
|
|
NOKIA 1000Base-LX Network Interface Card - 2 x - 1000Base-LX NIF4423FRU $2173.88 NOKIA 1000Base-LX Network Interface Card - 2 x - 1000Base-LX NIF4423FRU |
|
|
NOKIA 1000Base-LX Network Interface Card - 4 x - 1000Base-LX NIF4529FRU $2889.97 NOKIA 1000Base-LX Network Interface Card - 4 x - 1000Base-LX NIF4529FRU |
|
|
Nortel Card OC-12 IR Network Interface ISS 18 NT7E02PB $458.55 Nortel Card OC-12 IR Network Interface ISS 18 NT7E02PB |
|
|
Cisco High Density VoiceFax Network Module Voice Interface Card Nmhdv $1153.18 Cisco High Density VoiceFax Network Module Voice Interface Card Nmhdv |
|
|
Transition Networks 100Base-FX PCI Network Interface Card $138.99 1 1 x MT-RJ 100Base-FX 100Base-FX PCI Network Interface Card 4.80" Width x 0.90" Thickness Fiber Optic Card Internal Low-profile N-FX-MT-02F PCI Transition Networks Transition Networks, Inc www.transition.com |
|
|
TP-Link / TP-Link Network TF-3200 10/100M PCI Network Interface Card IC Plus IP100A Retail / TF-3200 $18.14 TP-Link - TP-Link Network TF-3200 10/100M PCI Network Interface Card IC Plus IP100A Retail - TF-3200 |
|
|
High Density Voice Network Module - voice interface card $1939.99 Cisco High Density Voice Network Module - Voice interface card - plug-in card - for Cisco 26XX 28XX 29XX 37XX 3845 V3PN 38XX 39XX |
|
|
Allied Telesis AT-2750FX Fiber Network Interface Card $113.99 1 1 x SC 100Base-FX 2.70" Height x 6.70" Width 5.44 oz The AT-2750FX secure interface card hardens at-risk systems without impacting performance. It features an embedded security processor to offload encryption, authentication, and other cycle-intensive tasks from the host CPU, resulting in optimal system and application response. The types of encryption supported are DES, 3DES, FIPS capable and AES. Operating System: Microsoft Windows XP AT-2750FX AT-2750FX Fiber Network Interface Card AT-2750FX/SC-901 Allied Telesis Allied Telesis, Inc Fiber Optic Card Internal PCI RoHS Yes www.alliedtelesis.com |
|
|
Allied Telesis AT-2916SX Fiber Network Interface Card $140.99 1 1 x LC 1000Base-SX 2.50" Height x 4.70" Width AT-2916SX Fiber Network Interface Card Low Profile Bracket Operating Systems: Microsoft Windows Vista Microsoft Windows Vista 64-bit Microsoft Windows XP Microsoft Windows XP 64-bit Microsoft Windows 2003 Microsoft Windows 2003 64-bit Microsoft Windows 2000 NetWare 6.x Linux 2.4 Linux 2.6 Allied Telesis' AT-2916SX is a highly reliable 32-bit PCI Gigabit fiber interface card with 9KB jumbo frames support for network upgrade needs. The AT-2916SX helps to boost your Gigabit Ethernet throughput ten times to 1000Mbps. With the 1000SX fiber-optic connection, data transmission is both secure and faster. In order to reduce CPU use, Allied Telesis' AT-2916SX uses the adaptive interrupts and ultra-deep 96KB packet buffer. Coupled with link aggregation and load balancing, AT-2916SX achieves the best performance of its class for server connectivity. AT-2916SX AT-2916SX Fiber Network Interface Card AT-2916SX/LC-901 Allied Telesis Allied Telesis, Inc Fiber Optic Card Internal PCI RoHS Yes www.alliedtelesis.com |
|
|
Belkin Gigabit Desktop Network Interface Card $34.99 1 1 x RJ-45 10/100/1000Base-T IEEE 802.3 IEEE 802.3u IEEE 802.3ab Offers easy integration into existing 10/100 Ethernet networks; auto-senses the network speed and cabling type, adjusting accordingly Features extensive driver support One PCI Slot Gigabit Desktop Network PCI Card lets you easily upgrade your desktop computer to full gigabit speeds. Backward-compatibility with your existing 10/100 network allows you to simply insert the Card into your computer and instantly provide your high-performance workstation with the speed to quickly transfer large video, audio, and graphic files throughout the network. It's so simple to install, you'll be moving files throughout your network within minutes. You don't have to worry about cable type. Compatible with all existing 10/100 networks and major operating systems. Belkin Belkin International, Inc Category 5e F5D5005 Gigabit Desktop Network Interface Card Gigabit Ethernet Card Internal Lifetime PCI TCP/IP www.belkin.com |
|
|
Transition Networks Fast Ethernet Network Interface Card $1790.99 1 1 x ST 100Base-FX 2.20" Height x 4.80" Width x 0.90" Thickness 20 The Fast Ethernet NIC provides a 100BASE-FX fiber port and delivers low cost, fiber optic connectivity to the desktop in fiber rich LAN environments. With both standard and low profile form factors, driver support for most popular operating systems and PCI 2.2 plug-and-play capability. Installation is a breeze in virtually any PC in your network. Fast Ethernet Network Interface Card Fiber Optic Card Internal N-FX-ST-02-020 PCI Transition Networks Transition Networks, Inc www.transition.com |
|
|
UCS P81E Virtual Interface Card - network adapter - 2 ports $768.99 Cisco UCS P81E Virtual Interface Card - Network adapter - PCI Express 2.0 x8 - 10 Gigabit Ethernet - 2 ports |
|
|
Sonnet Presto GE1000LA PCI Network Interface Card $88.99 1 1 Year Limited 1 x RJ-45 10/100/1000Base-T Microsoft: Windows Vista Windows XP SP2 MAC: Mac OS X Version 10.5 Mac OS X Version 10.4.11 Networking congestion can slow you down. Speed things up with Sonnet's Presto Gigabit Pro Ethernet PCI card. Just install this Ethernet card into a PCI slot of just about any Power Macintosh or Windows desktop, connect to a fast network, and watch your file transfer times improve dramatically. Category 5e GE1000-LA GE1000LA Gigabit Ethernet Card Internal PCI Presto Presto GE1000LA PCI Network Interface Card RoHS Sonnet Sonnet Technologies, Inc Yes www.sonnettech.com |
|
|
Allied Telesis AT-2711FX Fast Ethernet Fiber Network Interface Card $117.99 1 1 x ST 1.92 oz 100Base-FX 50/125 µm 62.5/125 µm AT-2711FX Fast Ethernet Fiber Network Interface Card design gives you the maxim possible bandwidth and bus efficiency, other benefits are: capability and Low Power Consumption. For the current customers who are using Allied Telesis 100Mbps Fiber cards (AT-2701FX), and want to upgrade their systems to PCI-Express, AT-2711FX Fast Ethernet Fiber Network Interface Card is the ultimate solution. AT-2711FX AT-2711FX Fast Ethernet Fiber Network Interface Card AT-2711FX/ST-901 Allied Telesis Allied Telesis, Inc Fiber Optic Card Internal PCI Express x1 www.alliedtelesis.com |
|
|
Transition Networks 100Base-FX Network Interface Card $143.99 1 1 x LC 100Base-FX 100Base-FX Network Interface Card 2.20" Height x 4.80" Width x 4.80" Depth x 0.90" Thickness Windows 95, 98, ME, 2000, 2003, XP, NT 4.0 NDIS 2,3,4,5 NetWare Server 3.12, 4.x, 5.x, 6.x NetWare DOS Client ODI MAC OS Linux x86, AMD64 FreeBSD 3.2, 4.x, 5.x SCO Unixware 7.1, OpenUnix 8 SCO Open Server 5.0x Solaris 8, 9, 10 The Fast Ethernet NIC provides a 100BASE-FX fiber port and delivers low cost, fiber optic connectivity to the desktop in fiber rich LAN environments. Fiber Optic Card Lifetime Low-profile N-FX-LC-02F PCI Transition Networks Transition Networks, Inc www.transition.com |
|
|
1 Port PCI Express 10/100 Ethernet Network Interface Adapter Card - network adapter $18.99 StarTech.com 1 Port PCI Express 10/100 Ethernet Network Interface Adapter Card - Network adapter - PCIe low profile - Ethernet Fast Ethernet - 10Base-T 100Base-TX |
|
|
Transition Networks / Transition Networks Fiber Optic Gigabit Ethernet Network Interface Card / N-GXE-SC-01 $327.53 Transition Networks - Transition Networks Fiber Optic Gigabit Ethernet Network Interface Card - N-GXE-SC-01 |
|
|
Transition Networks / Transition Networks 100BASE-FX Network Interface Card / N-FX-LC-02 $153.45 Transition Networks - Transition Networks 100BASE-FX Network Interface Card - N-FX-LC-02 |
|
|
Transition Networks / Transition Networks 100Base-FX Network Interface Card / N-FX-LC-02F $164.42 Transition Networks - Transition Networks 100Base-FX Network Interface Card - N-FX-LC-02F |
|
|
Transition Networks / Transition Networks Fiber Gigabit Ethernet Network Interface Card / N-GXE-LC-01 $373.22 Transition Networks - Transition Networks Fiber Gigabit Ethernet Network Interface Card - N-GXE-LC-01 |
|
|
Transition Networks / Transition Networks Fast Ethernet 100BASE-FX Network Interface Card / N-FX-SC-02 $133.63 Transition Networks - Transition Networks Fast Ethernet 100BASE-FX Network Interface Card - N-FX-SC-02 |
|
|
Niagara Network Interface Card PCI-X Dual Copper Giga Bit NIC NIAGRA2261 $262.35 Niagara Network Interface Card PCI-X Dual Copper Giga Bit NIC NIAGRA2261 |