Networking Without Wires

At the moment, perhaps, impossible to imagine an office, great or small, without a local area network. And not only offices, many houses and apartments are connected by local networks. Local area networks for home or office are usually built to connect the Internet of several computers and / or use one printer, fax, scanner and collaborate on documents and data. Mick McGuire addresses the importance of the matter here. Thus, setting up a local network can improve productivity. Network usually represents a group of computers connected by wires, for which data is exchanged. However, sometimes it is necessary that a wireless LAN. If you would like to know more then you should visit Imogen Lloyd Webber . The wires may be permanently interfere underfoot, in addition to the case of transfer of workplace it is required to hold and move the wires to connect to the network.

If the data disadvantage seriously impair the effectiveness of the work, you can consider using LAN-based technology without wires, one of which is Wi-Fi. Technology Wi-Fi (Wireless-Fidelity) includes three standards, which differ in the range of operating frequencies, and as a consequence – a range of communications and the transmission capacity. Standard 802, 11a operates at 5 GHz with a transmission distance of up to 60 meters and a data transfer rate 54 Mbps. Standard 802. 11b is clocked at 2. 4 GHz, with data rates up to 11 Mbps and ranges up to 100 meters, but it is not compatible with Protocol 802. 11a.

Finally, the protocol 802. 11g clocked at 2. 4 GHz with ranges up to 100 meters and speeds up to 54 Mbps (typically 22 Mbps). In any wireless lines that data is transmitted over the air and can be obtained criminals, therefore there is a question of security and encryption. At this point, the following encryption: WEP (Wired Equivalent Privacy); WPA (Wi-Fi Protected Access); WPA2. WEP is the most common encryption system wireless traffic (Encryption algorithm RC4). At the same encryption creates one or more keys with which and encrypted traffic. However, the biggest drawback of this encryption system is its static nature of WPA encryption is built on the principle of WEP, but generates a dynamic key, which improves the resistance against cracking. But WPA2 most reliable at this time encryption system in which encryption algorithm was changed from RC4 to AES. For additional security, you can use additional encryption systems, such as VPN. Setting up Wi-Fi is not much harder to configure common LAN. You must install an access point and set the system up under the settings of your network. It is only necessary to have some experience working with wireless devices. However, Wi-Fi technology requires increased attention to security settings. Therefore, to make installation and setup Wi-Fi network should only be literate specialist.

Lined Paper

Curl – presence or absence of residual deflection after printing. Clean. Quality paper with a clean surface prevents the appearance of paper dust, which leads to deterioration of equipment. Heat stability. Choosing paper with high resistance to heat, you can prevent it getting stuck in the office equipment. Paper for the printing press. In the printing press, the following types of paper: Woodfree uncoated paper, coated paper; synthetic paper, design paper (coated or embossed). Let's dwell on each form.

Woodfree Paper This type of paper well the colors and minimally susceptible to aging. That's why Woodfree paper is perfect for print publications with lots of color illustrations, as well as designed for long life. The most popular type of Lined Paper is offset, or a book. It is used for print publications with black & white and color illustrations, such as books and magazines, as well as promotional materials: catalogs, posters, leaflets, flyers, etc. Unlike coated paper, offset paper surface is treated with special sizing agents, which are applied to it a thin layer.

This allows us to increase its strength. Coated paper surface is coated Paper covered by one or several layers of special composition, which increases its strength and improve its physical and mechanical properties (the best characteristics of a paper with three layers of coating). This type of Paper is widely used in color printing. By type of decoration distinguished matte, semi-matt and glossy coated paper. Matte coated paper is more dense and soft to the touch.