Networking

Computer Networking Technology Continues To Speed Forward

Who remembers the Commodore 64? Released to the public in the early 1980s, the Commodore 64 was the most popular computer on the market for a number of years. In fact, it is still the highest-selling single computer system to this day, with an estimated 17 million-plus units sold.

The Commodore 64 featured revolutionary graphics and sound for a machine of its time, and for that reason was widely popular for playing games. It also had a built-in data recorder known for its slow processing times and little storage space. While a floppy disk attachment was eventually released, it did little to increase storage capacity.

The networking capability of the Commodore 64 and other early single-user computer units during that time was minimal. A dial-up modem soon became available, which allowed users to connect with public bulletin boards to access early online games. This also enabled users to chat and message each other, basically setting the stage for what is known today as the Internet.

Computer Networking

Development of computer networking technologies and early versions of the Internet began in the late 1950s, and were in use by the military and science communities by the following decade.

During the early days, machines with the same capabilities as today’s desktop computers were so large they required multiple floors in order to operate. The compact size of today’s computers can be credited to the development and evolution of the microprocessor, which allows communication to take place at lightning speeds through conveniently small devices.

Networking Becomes the Norm

In the 21st century, computer networking has become part of our everyday lives. The Internet has been in widespread use for around 20 years, allowing us to instant message each other, send large documents, share photographs and have the equivalent of a world-class library at our fingertips. These things have all become routine in our high-tech world.

Whats Behind the Network?

Simply put, a computer network consists of multiple computers that interconnect. A Local Area Network (LAN) is a computer network residing in one locale, such as a building, an office or a campus. A Wide Area Network (WAN) is a computer network that is spread throughout a large geographical area. The Internet can be considered the largest WAN on earth!

The actual connections and cabling within computer networks often go overlooked. This is not the glamorous side of computing by any stretch, but it is a networks lifeline. When networking was in its infancy, information transfer was very slow due to the fact that only one piece of information could be transferred at a time. This could also be attributed to the limitations of the cabling, which was basically telephone wire at that point.

With the advent of packet transfer technology, multiple pieces of information were able to be switched back and forth simultaneously. This revolutionized the speed at which computer networks operate. Along with the computing technology came an upgrade in the actual network connections; the cabling.

We now have Cat5e bulk cable, which provide an amazing amount of bandwidth for information transfer compared to original network cabling. And for jobs requiring faster speeds, Cat6 bulk cable provides even more bandwidth. Fiber cable is used in the largest and fastest networks.

Just like networking, technology is not slowing down. Weve come a long way in the last 20 years of personal computing. The prospect of what’s to come is exciting to ponder.

ATM Technology in Computer Networking

ATM meaning (Asynchronous Transfer Mode) is one of the most efficient virtual network technology providing high speed connections along with dedicated paths. This technology operates on cell based fast packet switching communication method. One of the best advantages of ATM technology is that it is able to support a transfer rate between 1.544 Mbps to 10 Gbps.

The means of connections involved in ATM allows running parallel connections within a full dedicated mode. This all allows support to multiple conversations along with eliminating the need for a bandwidth connection. There is no issue what so ever located to data bottlenecks that is most commonly found on shared networks such as Token Ring, Ethernet and FDDI.

The data transferred within an ATM network is in the form of switched virtual circuitry.

This type of (SVC) connection is connected between the sender and receiver. This information gets converted in to fixed lengths of cells which gets reassembled and gets transferred at the destination.

The reliability of the ATM Network depends upon the digital lines used to ensure the integrity of the data. This ATM network doesn’t support any error correction protocol. There can be numerous amounts of re-transmissions that can take place within an ATM network.

The bandwidth of these ATM’S is dedicated and capable of supporting intensive amount of both real and non-real time applications. These are able to support all multimedia application along with high resolution computer graphics as well.

The throughput provided by an ATM technology is one of the best solutions for all emerging applications like combing audio, voice along with animations as well. Although, there are various other technologies which ensure high profile bandwidth because of rich media usage but ATM is found to be most effective solution because of its fixed packet size and implementation simplicity.

These ATM is one of such technology that has got a great future within years to comes as these ATM could easily get installed over an existing network without feeling the need for going upgrading the local area network or even a metropolitan network – a real example is a DSL connection from an ISP to an end user.

Careers In Computer Technology And Networking

If you are a self-proclaimed computer buff and seriously considering a career in information technology, youll be happy to learn that there are several choices in front of you. No industry remains impervious to technology in this day and age. From banking to media, healthcare to manufacturing, all sectors use computer technology for most of their day-to day-functionsso it seems like the need for qualified and trained IT professionals is here to stay.

However, there is intense competition for IT jobs. Given the competitive landscape of this industry, the sooner you start planning your career, the better your chances of landing the job that suits your interests and skills. Following are a few careers in computer technology and networking to consider.

Computer Support Specialists

Computer support specialists, also known as technical support specialists, are the fix-it people of an organization. They are the warriors on call who figure out the cause of and then fix any hardware or software breakdowns in an employees computer system.

Their role may require them to perform day-to-day maintenance of employee machines to ensure their optimal functioning, as well as provide support via email, chat, phone, or face-to-face. Computer support specialists are also called on to install computer systems, peripherals like printers and scanners, software programs, and applications for employees, as well as instruct the staff on how to use them.

The qualifications required for a support specialist career may differ among organizations. While some employers may be open to employing individuals with professional certifications and relevant experience, many only hire candidates who have a college education.

Having an associates or bachelors degree in a computer field may make it easier for candidates to get hired. A computer technology degree or other relevant program could help you enter this exciting career.

Network Administrators

Computer networking is defined as the communication between computer systems or devices that are connected to each other and capable of exchanging data. All organizations have a computer network, and all organizations need information to flow seamlessly through their system.

Network administrators are responsible for installing and providing ongoing support for an organizations computer network, making sure the flow of information remains continuous.

The core job responsibilities include installing and maintaining Local Area Networks (LANs), Wide Area Networks (WANs), network hardware, and software; monitoring network performance; analyzing and troubleshooting problems; and ensuring the upkeep of an organizations network security.

A computer networking degree may be the most suitable academic program to help candidates qualify for a network administration career. A bachelors degree is usually required, but you may be able to get your foot in the door with an associates degree and relevant certifications.

Network Architects or Engineers

While the titles may sometimes be used interchangeably, the job responsibilities of network engineers and network administrators differ in the level of responsibility and skills necessary, as well as in the educational requirements.

While network administrators are in charge of the day-to-day maintenance of an organizations computer network, network engineers or architects are responsible for its overall design, management, and upgrades to speed and efficiency. Network engineers need a higher level of expertise than network administrators in order to meet their major responsibilities in analyzing, planning, and redesigning their organizations networks, to keep pace with the companys changing needs.

Typically a bachelors degree in a relevant field, such as computer science, is required to land a role as a network architect, though some organizations may insist on a masters degree as well.