Computer Network Technology

What is a computer network? A computer network is a set of computers, printers, and other devices that are connected to each other to share information and move data through cables. Many users can print with the same printer or use the same software at the same time. Computers that store primary data and act as data centers are called Servers, while computers that are connected to networks and retrieve data from Servers are called Workstations.

Various Networks

1. Local Area Network (LAN) A network that is limited by a small area usually used by a small office in a building or school. Usually not far from 1 km square. Most LANs use cables and LAN cards to connect one computer to another. Each computer that is connected to a LAN has a different Internet Protocol Address. Usually abbreviated as IP Address. LAN can also be set up through Wireless Technology which has speeds of 10 to 10,000 Mbps. Wireless LANs can use infrared or radio frequencies.

LAN Benefits

a. Sharing files and printers is easy between computers. b. The risk of data loss caused by a virus can be reduced. c. If there is one computer connected to the modem, all computers can access the internet. d. There is a lot of space in the storage system (hard disk) for storing documents. e. Files stored on the server can be accessed by client computers with authorization. Authorizations can be made according to the company’s organizational structure.

2. Metropolitan Area Network (MAN) This type of network usually has a larger area than a LAN or can contain networks from several LANs that are connected to each other. Example MAN is a network built on a broad campus complex.

3. Wide Area Network (WAN) WAN is a type of network that is usually built through satellite or submarine cable technology. An example of a WAN is a bank network in the capital city that can share information with the regional bank network. They can also hold video conferencing meetings via the Internet.

Advantages of WAN:

 a. We can send files or documents by electronic mail (email) instead of sending documents manually through the post office. b. The network server at the Head Office can be a data bank of a branch office. c. Company data can be updated every day as needed.…

What is the Internet Content Filter?

Internet content filters are used to prevent users on a computer from accessing websites deemed inappropriate and downloading files that may affect the security of a computer. Many Internet content filters are in place to block websites that contain pornography, hate groups, and other sensitive, and possibly illegal, activities and items. Many content filters are software based, but a large amount of organizations are moving toward hardware-based filtering, taking advantage of features in routers.

Companies need to be protected both legally, and in terms of network and information security. Content filters help to prevent programs and files from being downloaded that may be malicious, stealing company data, infecting systems with viruses, and more. Internet content filters are a necessary evil that actually help security.

Additionally, Internet content filters help to keep both an organization and an individual legally protected. By blocking pornographic websites, organizations are helping to prevent sexual harassment lawsuits against themselves, as well as the individual accessing the website. Hate-filled websites dealing with racism, sexism, and more are also blocked to prevent offending anyone, and leaving an organization and individual open to a hate crime related lawsuit. For the large amount of protection these filters provide, the small hindrance and annoyance they bring about are very minor.

Whether it involves using the internet at work, school, or the library, most organizations utilize IT specialists, such as site administrators or media directors, to assist with the decision of which internet filters to implement. These specialists can also help organizations monitor the daily use of the Internet and create website tracking methods.

For most library institutions, it is up to the local library board to decide which websites are appropriate for their visitors to use. The librarians who work at an individual location may have a significant amount of input towards this decision, as well as monitor the activity of the computer systems while in use.

In an elementary through high school environment, the board of education, principals, teachers, and parents should all have a say in which Internet sites are made available to young students. Most parents filter Internet use for their own children at home, so it is imperative that they contribute their opinions.

At a college level, most universities should allow department deans and campus libraries to determine the appropriate Internet sites allowed in the classrooms, administration facilities, and academic departments. Depending on the specialty …

How The Best Web Development Firms Can Affect Your Business Profile

Web Design – The Essence of Professional Designs

Are you ready for a new website or does your current site need improvements? When you need an expert for business web design for the Los Angeles business, you might have two basic choices. You can work with a freelance designer or you can choose to work with an expert design firm. In almost all cases, a design firm could be the better option.

– The importance of having a website is not undermined under any circumstances mainly because it increases exposure and allows the brand to achieve a much more global audience, and allows the worldwide audience to go into touch with the manufacturer at a day and time

– It cannot be emphasized enough that if your organization does not have a presence on the net then it is not with all the full potential in the web

– This means that your brand is missing out on huge volumes of business and revenue

The Last Time You Looked At A Phone Book

Hiring an individual freelancer can be a gamble for your simple fact that you’re working with a single person. What if your designer becomes sick, has a family emergency or lands surprise probability of a lifetime job while dealing with your website? You could find yourself paying for a barely begun, half-finished or worse yet a rush job site. When you work with a design firm featuring multiple personnel, you can have confidence about the progress and finishing your web design. – Google offers a lot of free tools including email to web design

– If you want an easy and reliable option, Google sites just might be it

– You will use templates to produce a basic web design which may then be customized by easy to use tools which will allow you to definitely manipulate the look, layout and overall form of your site

– Since its from Google, integrating other Google tools like Google Docs, RSS and calendars is basically simple

When you utilize a freelancer, you don’t have any guarantees about their experience doing its job a specialist, either. They may be severely lacking in communication skills. Missing deadlines will not be a challenge for an individual freelancer despite the fact that it’s incredibly frustrating and expensive to your business.…

Free Website Builders That Really Work

A Web Design Firm and Flash

Every business idea takes wings by launching a professionally designed website. As Internet has redefined the way in which companies transact in their businesses, your internet site would have been a gateway for innumerable business opportunities. To secure a leading position and be the forerunner inside the competition, a certifiable online presence is indispensable for the company.

– Just as you studied and also have a passion for your selected career a designer who creates websites understands their drive

– They seek to give originality leave their mark for the world with the pages they create

– It is not a chore for them it becomes an artful skill

– This is the form of designer that you would like in your corner

Low Cost Web Design – Getting Quality Web Design Cheaply

Another important function of good web site design is its ability to be accessible.  In other words a website should be organized using Web Content Accessibility Guidelines.  These guidelines are the utilization of semantic markup allowing documents to experience a meaningful structure and they are able to be recognized by other web services of other website pages.  Web Content Accessibility Guidelines also insist that sites use hyperlinks that make sense away from context and don’t permit the utilization of frames.  The guidelines also ensure that other sites can read the foundation code knowning that you will find text equivalents for non-text components. – Just selling the products and services isn’t enough, marketing them is imperative as well

– Better promotion of the business increases your sales and gets you best revenues

– Online promotion of your website helps with bringing in more clients

– It also enhances the probability of roping in clients with the international level no matter your geographical locations

– If you are an Oshawa based business, effective online promotions brings you customers from throughout Canada, North America or even the whole world, based upon the nature of your businesses

They can offer suitable business solutions to website owners and help them in realizing their business objectives. Each project that is undertaken is geared towards sites goal along with the targeted audience. Accordingly, they work on designing a website which is clean-looking, easily navigable and which puts over the message properly before your intended customers.…

How to Find Reasonable Web Design Services

WordPress Web Design Acts As the Driving Power Behind User Friendly Websites

When you go into business for the first time, one of the most essential things that you can do regarding advertising your company and giving people a spot to locate info is to possess a website designed. It doesn’t matter what form of industry you enter; it is possible to likely are able to create a website operate in your favor and provides the sorts of information that prospective customers could possibly be looking for. Here are a few examples of the way a website may benefit your company and assist you to interact with those that could possibly be enthusiastic about the product or service or service you’re offering.

– Custom website design is widely popular these days

– Since it addresses the functionality as well as the aesthetic usability with the website, it will help reading good visitors on a regular basis

– Custom design equally covers layout, design, color schemes and functionality from the site (includes the aspects, including user interface etc)

– Keep in mind, that your website builds your corporate identity, which is going to mark your difference from your competitors

Functionality Oriented Web Design

Another benefit that you will find here is that you could search both state and local companies in Atlanta as well as the surrounding suburbs. So, whether you need a company in Jonesboro, Union City, outside in Conyers or higher in Marietta, you can actually discover the company you may need while on an Atlanta designer directory. Of course, the information offered via a directory this way is better than what will you find with Google results, too. Much of the data which you have usage of immediately is not available through search results – you’ll have to visit each company’s page to find it. – Finally, additionally, you will realize that using an Atlanta designer directory is beneficial in other aspects

– For instance, not only is it able to search inside a specific radius of Atlanta, you’ll be in a position to in other words a query to the directory and acquire answers from companies

– That is the reverse of how it usually works, and offers you the opportunity to do what you do best when you are awaiting responses from top design firms in the area

– Just put in any project, budget and …