Advice 1: What is a network card

Network card (network adapter, network interface card, NIC - Network Interface card) is usually called a specialized computer component, which provides communication and data transmission between multiple computers on your network.
What is a network card
Network cards are divided into:

integrated into the motherboard (mostly in laptops);
- external, requiring connection to a computer.

External network card, in turn, differ in the way they connect to the computer and the bus, which enables the exchange of data between the motherboard and network card. To date, the most widely network card with a connector for twisted pair and wireless.

The main characteristics of the network adapters are:

- bit depth - 8, 16, 32 and even 64 bits;
data bus - ISA, EISA, VL-Bus, PCI;
the controller chip (chip);
- support network environment of the transmission - BNC, RJ45, AUI;
- speed;
- FullDuplex;
- The MAC address.

The interface differences make the difference in the configuration of network cards, though the vast majority of modern devices support the Plug&Play technology.

The generic drivers included with the operating systems, allow you to use all the basic functions of the network adapters of the last generation. The drivers offered by the manufacturer of the network cards differ a great set of features.

Of special note are the cards based on USB technology, enhancing convenience and ease of use. a necessary requirement in this case becomes version support USB 2.0 motherboard of the computer.

Additional arguments for choosing a network card can be:

support adapter technology Boot ROM that provides the ability to boot a computer without hard drive on the network;
- support card Wake On Lan, responsible for the switching function of the computer via the network;
the set of indicators the rear panel of the model chosen card.

Recommended by manufacturers of network cards are Intel and 3Com. Also of note is products CNet, LG, Surecom, Allied Telesyn, At-Link and SMC.

Advice 2: How to check network card on the laptop

Non-working network port in the laptop — not a rarity. If the network connection is not working, network card may have failed. Reasons for this may be several: starting from a spark of static electricity to mechanical damage of the connector terminal.
How to check network card on the laptop
You will need
  • - administrator rights.
Check your network settings. Each network has its own rules to configure a network connection. These usually relate to such parameters as range, IP address, default gateway, and others. Verify that you are in the right range of IP addresses in your network there are no address conflicts. If you can't configure yourself, browse online special instructions. Like described, what to do, the screenshots made by users during this procedure.
Restart the computer and enter the BIOS laptop. To do this, immediately after starting the laptop, press Del on the keyboard (it can also be F2, Esc, or other buttons). Check that the network card had the Enable parameter is enabled. Install drivers for network adapter by downloading them from the official website of the manufacturer of your laptop. When you select drivers note your laptop model and operating system version. If you have the installation disk then download all software from his personal computer and then restart it so the changes are saved.
Remove the network connection and create it again. Thus you will get rid of the incorrect settings that can be assigned to the old network connection. In a pinch, you can try to reinstall the system. If all these steps do not help you run network map, then, alas, it is out of order. Specifically for laptops and netbooks are available in external network adapters that connect via USB. If you can not use wireless technology, use of such a device. However, it should be noted that these techniques have some limitations in speed, and the fares are much more expensive.
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