Posts Tagged ‘Private Network’

Computer Hardware Network Security

November 27th, 2009



The term global village has become more realistic than fictional after the widespread use of the internet in all countries in the world. What the internet does is effectively computerizing the globe. Like many other things, the internet provides good and bad things. The consensus is that the good things far outnumber the bad things. But the questions posed regarding data security are serious ones. Since more and more institutions such as military, diplomatic, and financial institutions are relying on the internet or some other kinds of network for transferring data and streamlining the process, the number of people who try to misuse such data is also on the rise. To prevent this various kinds of data security measures are adopted by network administers. A majority of the data security measures are related to software applications. Computer hardware network security options are also used.

To understand the importance of data security, consider the case of a bank that has branches all over a country. For streamlining the operation, most of the banks set up a private network or a network connected with the internet to transfer financial data. A person with sufficient software and hardware knowledge can sneak into this network without permission and change the data according to his or her will. Such people are nicknamed hackers. In the case of a bank, since change of data means change or loss of money, implementation of state of the art security measures for protecting the data is absolutely essential.

The hardware components needed for a network are computers with network cards and nods for connecting these computers with each other through physical connection such as cable or through electronic signals via satellite. One will also need network and database management software for the effective functioning of the network. In most of the networking arrangements, one computer, known as the server, acts as a source and other computers act as nods of that central computer.

Normally, there are elaborate security arrangements for preventing unauthorized persons from logging in to a network. Software precautions like firewall, anti-virus and anti-hacking software packages, and encryption technologies have been widely used. Such systems are absolutely necessary to prevent data theft and other malicious intentions. The problem with software packages for network security is that such packages will be outdated after a particular period. Hackers usually understand how to get around the software packages after a certain period.

So, a computer hardware network security device is a better choice. Top network router manufacturing companies provide hardware firewall arrangement for both kinds of network systems: Ethernet and wireless. The firewall settings can be easily adjusted. Several companies also offer virtual private network devices for network security. But the important thing for providing watertight security for your network is that you need to constantly update the hardware and software requirements.

By: Candis Reade

Fast Network Printers For Multipurpose Use

November 19th, 2009



The network printers are the printers installed over the private network such as LAN; these printers are used for printing documents from various computer terminals in the network. The network can be established over the whole department or a building of an organization. These network printers make connection to the network by being installed at some specific USB port of the main computers of the central offices and take commands of printing from the various terminals connected, only if the permission from the main computer is granted.

These Printers are the multifunctional printers that offer many features within a single unit. These printers include scanner, photocopier and sometimes-even Fax machine within it. Such printers find great use in the offices as the need of buying other equipments is prevented. The other equipments, if bought separately, cost even more amount and also occupy more space. For this reason, very high performance, all-in-one printers are being used today.

These printers can be either laser printer or ink jet printers. Laser printers deliver high speed of operation while the ink jet printers are comparatively slow. Today printers are available in many configurations, types, capacity, functionality and style. Printers can be either colored or monochrome. They can be chosen on the basis of user capacity, that is, the connectivity to the terminals. A few manufacturers offer even up to 200 user terminals connectivity.

The multifunctional printers are offered by many manufacturers in the market. Some of the famous manufacturers include Brother, Canon, Copystar, Kyucera, Lexmark, NEC, OKi, Panasonic, Samsung, Sharp and Xerox etc. The Copystar CS 1635, NEC NEFAX-805 and Sharp AR-M162 are a few of the best seller printers which are in current trend. The cost of these printers comes in the range of 600-1100$.

The printers can be selected on the basis of printing speed based on their printing requirements. The speed varies as number of pages it can print in a second along with maintaining a good quality print. Few printers come in with networking capability, if the requirement is for the whole department then printer with networking facility should be used. Their network installation is also very easy, many a times the company sends a serviceman for installing the printer.

Today network printers have become a very common device in any office department. Its utility is nowhere hidden; any user from his terminal can use them anytime. By network printer the need of buying several printers is vanished. And when these printers include scanner, copier and Fax machine, then it satisfies all the needs of an office.

Thus the multifunctional network printers are the choice of the time; these should be installed in places such as offices, companies, departments, business houses etc. The easier is the use of technology, the more is speed of operation of the system. So for making an efficient operational system there should be continuous revision in the accessories and equipments used.

By: Keith Reynolds