There are many ways to connect the dual-machine. You can use two Ethernet cards to connect through unshielded dual-width wire (UTP); you can also connect directly through serial port or parallel port, or connect using USB interface, and wirelessly connect using the computer's infrared interface and remote sharing through dialing through two MODEMs, etc. Among these methods, connecting two network cards through twisted pair cables is the simplest, convenient and also the most commonly used connection method. Let us focus on realizing dual-machine interconnection in this way.
1. Internet connection through network card
1. Production of network cables
Before connecting to the network, the first thing we should consider is the production of network cables. Generally, if you use twisted pair wires to form a network, you need a hub (HUB). When connecting to the hub through the network, the twisted pair wire clamping method is very easy. You just need to clamp the network wires at both ends one by one. The order of clamping lines is the same on both sides, and the same is: 1. White orange, 2. Orange, 3. White green, 4. Blue, 5. White blue, 6. Green, 7. White brown, 8. Brown. Note that both ends have the same line order and correspond one by one. This is the standard for making wires for 100M network cables, that is, the 568B standard, which is what we usually call the main line or standard line.
However, as a small network with only two machines, it is a bit waste to buy a hub that costs several hundred yuan. In fact, we can use network cables to directly connect the two computers without using network cables. However, at this time, the network cable method needs to change the order of network cables to realize dual-machine interconnection without hubs. The specific method is: on one end, use the above 568B line standard and remain unchanged, and on this basis, the other end exchanges the lines 1, 3 and 2, 6 of these eight lines. At this time, the line sequence of the network cable becomes: 1, white green, 2, green, 3, white orange, 4, blue, 5, white blue, 6, orange, 7, white brown, 8, brown. This is the 568A standard for the 100M network cable, which is what we usually call the reverse line or cross line. After arranging the line sequence according to the standards of one end 568B and one end 568A, a network cable suitable for direct connection between two computers will be done.
2. Installation of network card
After the network cable is completed, the next step is to install the network card. Here we will give a brief introduction to the installation process of TP-LINK TF-3239V network card (10M/100M dual-speed adaptive network card, using REALTEK8139 main chip) under WIN98 as an example.
First turn off the host power, plug the TF-3239V network card into an idle PCI slot on the motherboard, fix it after inserting it, and then start WIN98. After entering WIN98, the system will prompt you to find the new hardware, enter the hardware installation wizard, and start searching for the driver. We select "Specify a location", and then find the path where the network card driver is located (such as a:/win98). After selecting, click OK. At this time, the system will start copying the required files. After completing it, the system will prompt whether to restart. Click OK and the system will restart. At this time, the installation process of the network card will be completed smoothly. The installation process of network card under other * systems such as WIN2000 is similar to that, and will not be repeated here.
3. Network settings
After the network card is installed, the following is the last step of dual-computer interconnection, which is also the most difficult step: network setting. Here I also take the network settings under WIN98 as an example. First, we need to check whether the network components of the system are fully installed: select "Online Neighbor" on the desktop, right-click to open its properties, and whether there are the following items in the configuration list: REALTEK8139 NETWORK ADAPTER (Network Card), MICROSOFT network customer (Service), TCP/IP protocol (Protocol), File and Printer Sharing Service (Service) on the MICROSOFT network. To connect to a LAN and share resources, the above components are essential and can be added directly here if not. Then set the IP address, select "TCP/IP-à REALTEK8139 NETWORK ADAPTER" (that is, the TCP/IP protocol settings of the network card), open its properties, enter "192,168,0,1" in the IP address bar, the subnet mask is "255,255,255,255,0", and then click "OK" to return to the main screen of "Network" (the IP address of the other computer is "192,168,0,2", the subnet mask is the same). In the identification item, you should enter their own different names for the two computers, but their working groups should be the same. Select the sharing level in the access control item, click "OK", and then restart the computer according to the prompts. Pay attention to network login when restarting the computer. After the computer starts and enters the Win98 interface, right-click on "My Computer" to select the drive or folder you want to share, click "Share" in the shortcut menu, enter the share name in the dialog box, and set the sharing type and access password as needed. At this time, a palm will appear on the drive or folder, indicating that it has been shared. Now we can access another computer through the online neighbors just like using native resources.
2. Direct cable connection
Using direct cables to connect through the computer's serial port or parallel port is also a common solution to realize direct connection between dual machines. Compared with using network card connection, this solution is more practical for users who do not have high network quality requirements. Its advantages are mainly convenient connection and low cost. Of course, its shortcomings are obvious:
1. The connection distance is relatively short:
The length of parallel cables using "direct cable connection" should not exceed 3 meters. Only within this distance can we ensure stability and integrity during data transmission. This method is more suitable for connecting two computers with very close distances. If you want to connect to a computer that is longer than the distance, this connection method will definitely not work;
2. When connecting with serial cable:
The speed of data transmission may be slow, so if you connect two computers to play games, this method is generally not suitable. But overall, direct cable connection is a great way to build a network when you only have two computers. To achieve direct cable connection between two machines, communication cables are an indispensable accessory. It is recommended to purchase them directly at a local computer store or network company. It is mainly divided into serial cable and parallel cable. It should be noted that you should choose a communication cable for connecting computers to computers, and do not choose a communication cable connected to peripherals such as computers and printers. These two cables are generally not used interchangeably. After buying the cable, use it to connect the two computers. Then start the computer and enter the Win98 system. Select "Start" → "Programs" → "Accessories" → "Communication" → "Direct Cable Connection" (if not, the method of adding is "Control Panel" → "Add/Remove Programs" → "Windows Installer" → "Communication" → "Direct Cable Connection". And set "Protocol", "Identification" and "Share" in "Network", the same as the network settings connected with the network card mentioned above), set the ports according to the prompts, and set one of them as a server and the other as a client. In the "Direct Cable Connection" option, select "Listen" for the host, select "Connect" for the client, and then enter your username and password to successfully connect, realizing dual-machine interconnection. At this time, the client can use various resources on the host, including network resources, and you will no longer be worried about the need to retrieve the hard drive when exchanging data between computers at home or in the office.
The above are the two simplest and most commonly used methods to realize dual-machine interconnection. There are many other methods such as connecting with infrared ports and remote sharing through MODEM. I will not introduce them one by one due to space limitations.
1. Internet connection through network card
1. Production of network cables
Before connecting to the network, the first thing we should consider is the production of network cables. Generally, if you use twisted pair wires to form a network, you need a hub (HUB). When connecting to the hub through the network, the twisted pair wire clamping method is very easy. You just need to clamp the network wires at both ends one by one. The order of clamping lines is the same on both sides, and the same is: 1. White orange, 2. Orange, 3. White green, 4. Blue, 5. White blue, 6. Green, 7. White brown, 8. Brown. Note that both ends have the same line order and correspond one by one. This is the standard for making wires for 100M network cables, that is, the 568B standard, which is what we usually call the main line or standard line.
However, as a small network with only two machines, it is a bit waste to buy a hub that costs several hundred yuan. In fact, we can use network cables to directly connect the two computers without using network cables. However, at this time, the network cable method needs to change the order of network cables to realize dual-machine interconnection without hubs. The specific method is: on one end, use the above 568B line standard and remain unchanged, and on this basis, the other end exchanges the lines 1, 3 and 2, 6 of these eight lines. At this time, the line sequence of the network cable becomes: 1, white green, 2, green, 3, white orange, 4, blue, 5, white blue, 6, orange, 7, white brown, 8, brown. This is the 568A standard for the 100M network cable, which is what we usually call the reverse line or cross line. After arranging the line sequence according to the standards of one end 568B and one end 568A, a network cable suitable for direct connection between two computers will be done.
2. Installation of network card
After the network cable is completed, the next step is to install the network card. Here we will give a brief introduction to the installation process of TP-LINK TF-3239V network card (10M/100M dual-speed adaptive network card, using REALTEK8139 main chip) under WIN98 as an example.
First turn off the host power, plug the TF-3239V network card into an idle PCI slot on the motherboard, fix it after inserting it, and then start WIN98. After entering WIN98, the system will prompt you to find the new hardware, enter the hardware installation wizard, and start searching for the driver. We select "Specify a location", and then find the path where the network card driver is located (such as a:/win98). After selecting, click OK. At this time, the system will start copying the required files. After completing it, the system will prompt whether to restart. Click OK and the system will restart. At this time, the installation process of the network card will be completed smoothly. The installation process of network card under other * systems such as WIN2000 is similar to that, and will not be repeated here.
3. Network settings
After the network card is installed, the following is the last step of dual-computer interconnection, which is also the most difficult step: network setting. Here I also take the network settings under WIN98 as an example. First, we need to check whether the network components of the system are fully installed: select "Online Neighbor" on the desktop, right-click to open its properties, and whether there are the following items in the configuration list: REALTEK8139 NETWORK ADAPTER (Network Card), MICROSOFT network customer (Service), TCP/IP protocol (Protocol), File and Printer Sharing Service (Service) on the MICROSOFT network. To connect to a LAN and share resources, the above components are essential and can be added directly here if not. Then set the IP address, select "TCP/IP-à REALTEK8139 NETWORK ADAPTER" (that is, the TCP/IP protocol settings of the network card), open its properties, enter "192,168,0,1" in the IP address bar, the subnet mask is "255,255,255,255,0", and then click "OK" to return to the main screen of "Network" (the IP address of the other computer is "192,168,0,2", the subnet mask is the same). In the identification item, you should enter their own different names for the two computers, but their working groups should be the same. Select the sharing level in the access control item, click "OK", and then restart the computer according to the prompts. Pay attention to network login when restarting the computer. After the computer starts and enters the Win98 interface, right-click on "My Computer" to select the drive or folder you want to share, click "Share" in the shortcut menu, enter the share name in the dialog box, and set the sharing type and access password as needed. At this time, a palm will appear on the drive or folder, indicating that it has been shared. Now we can access another computer through the online neighbors just like using native resources.
2. Direct cable connection
Using direct cables to connect through the computer's serial port or parallel port is also a common solution to realize direct connection between dual machines. Compared with using network card connection, this solution is more practical for users who do not have high network quality requirements. Its advantages are mainly convenient connection and low cost. Of course, its shortcomings are obvious:
1. The connection distance is relatively short:
The length of parallel cables using "direct cable connection" should not exceed 3 meters. Only within this distance can we ensure stability and integrity during data transmission. This method is more suitable for connecting two computers with very close distances. If you want to connect to a computer that is longer than the distance, this connection method will definitely not work;
2. When connecting with serial cable:
The speed of data transmission may be slow, so if you connect two computers to play games, this method is generally not suitable. But overall, direct cable connection is a great way to build a network when you only have two computers. To achieve direct cable connection between two machines, communication cables are an indispensable accessory. It is recommended to purchase them directly at a local computer store or network company. It is mainly divided into serial cable and parallel cable. It should be noted that you should choose a communication cable for connecting computers to computers, and do not choose a communication cable connected to peripherals such as computers and printers. These two cables are generally not used interchangeably. After buying the cable, use it to connect the two computers. Then start the computer and enter the Win98 system. Select "Start" → "Programs" → "Accessories" → "Communication" → "Direct Cable Connection" (if not, the method of adding is "Control Panel" → "Add/Remove Programs" → "Windows Installer" → "Communication" → "Direct Cable Connection". And set "Protocol", "Identification" and "Share" in "Network", the same as the network settings connected with the network card mentioned above), set the ports according to the prompts, and set one of them as a server and the other as a client. In the "Direct Cable Connection" option, select "Listen" for the host, select "Connect" for the client, and then enter your username and password to successfully connect, realizing dual-machine interconnection. At this time, the client can use various resources on the host, including network resources, and you will no longer be worried about the need to retrieve the hard drive when exchanging data between computers at home or in the office.
The above are the two simplest and most commonly used methods to realize dual-machine interconnection. There are many other methods such as connecting with infrared ports and remote sharing through MODEM. I will not introduce them one by one due to space limitations.