different types of networks

A computer network is mainly of four different typesof Networks:

·         LAN(Local Area Network)

·         PAN(Personal Area Network)

·         MAN(Metropolitan Area Network)

·         WAN(Wide Area Network)

The size of a network can be expressed by the geographic area they occupy and the number of computers that are part of the network. Networks can cover anything from a handful of devices within a single room to millions of devices spread across the entire globe.

In terms of purpose, many networks can be considered general purpose, which means they are used for everything from sending files to a printer to accessing the Internet. Some types of networks, however, serve a very particular purpose. Some of the different networks based on their main purpose are:

• Storage area network, or SAN
• Enterprise private network, or EPN
• Virtual private network, or VPN

A personal area network, or PAN, is a computer network organized around an individual person within a single building. This could be inside a small office or residence. A typical PAN would include one or more computers, telephones, peripheral devices, video game consoles and other personal entertainment devices.

A local area network, or LAN, consists of a computer network at a single site, typically an individual office building. A LAN is very useful for sharing resources, such as data storage and printers. LANs can be built with relatively inexpensive hardware, such as hubs, network adapters and Ethernet cables.

A metropolitan area network, or MAN, consists of a computer network across an entire city, college campus or small region. A MAN is larger than a LAN, which is typically limited to a single building or site. Depending on the configuration, this type of network can cover an area from several miles to tens of miles. A MAN is often used to connect several LANs together to form a bigger network. When this type of network is specifically designed for a college campus, it is sometimes referred to as a campus area network, or CAN.

A wide area network, or WAN, occupies a very large area, such as an entire country or the entire world. A WAN can contain multiple smaller networks, such as LANs or MANs. The Internet is the best-known example of a public WAN.

cisco systems jobs

Cisco develops, manufactures and sells networking hardware, software, telecommunications equipment and other high-technology services and products. ... They pioneered the concept of a local area network (LAN) being used to connect geographically disparate computers over a multiprotocol router system.

Cisco engineers are a type of network administrator who specializes in networks built using Cisco products. Cisco engineers work for companies, governments, non-profits and any other entity that needs to build or maintain a large computer network. Common duties of Cisco engineers include designing and building networks, providing technical support and identifying and resolving recurring issues.

To enter the profession, earning a bachelor's degree in information systems, engineering, computer science or a related field is essential, as is prior work experience in an information technology position. Some employers may additionally require an MBA, based on the complexity of an organization's technology.

CiscoSystems jobs core development areas are routing and switching, as well as in advanced technologies such as home networking, IP telephony, optical networking, security, storage area networking, and wireless technology.

system software engineer job description

Computer systems software engineers conceptualize, design, construct, install, maintain and repair computer systems. They advise users regarding the technical direction of their computer systems based on their needs. They may recommend making changes to an existing system or installing an entirely new system.

System Software Engineer job description .A software engineer designs and creates engineering specifications for software programs based on a broad knowledge of information systems. Systems engineers also perform high-level root cause analysis for service interruptions and help ensure that the services and system get back online after the problem is resolved.

Determines operational feasibility by evaluating analysis, problem definition,requirements, solution development, and proposed solutions. Develops software solutions by studying information needs, conferring with users, and studying systems flow, data usage, and work processes.

Software engineers may work in computer systems design firms or electronic product manufacturing companies. Some are employed by software publishers or in applications development offices, such as insurance carriers and corporate institutions.

what software engineers do

what software engineers do? Software developers typically do the following:

·         Recommend software upgrades for customers' existing programs and systems

·         Design each piece of an application or system and plan how the pieces will work together

·         Create a variety of models and diagrams (such as flowcharts) that show programmers the software code needed for an application

·         Ensure that a program continues to function normally through software maintenance and testing

·         Document every aspect of an application or system as a reference for future maintenance and upgrades

·         Collaborate with other computer specialists to create optimum software

Software developers are in charge of the entire development process for a software program. They may begin by asking how the customer plans to use the software. They must identify the core functionality that users need from software programs. Software developers must also determine user requirements that are unrelated to the functions of the software, such as the level of security and performance needs. They design the program and then give instructions to programmers, who write computer code and test it.

If the program does not work as expected or if testers find it too difficult to use, software developers go back to the design process to fix the problems or improve the program. After the program is released to the customer, a developer may perform upgrades and maintenance.

Developers usually work closely with computer programmers. However, in some companies, developers write code themselves instead of giving instructions to programmers.

Developers who supervise a software project from the planning stages through implementation sometimes are called information technology (IT) project managers. These workers monitor the project's progress to ensure that it meets deadlines, standards, and cost targets. IT project managers who plan and direct an organization's IT department or IT policies are included in the profile on computer and information systems managers.

what does a software engineer do

whatdoes a software engineer do?  A software engineer applies mathematical analysis and the principles of computer science in order to design and develop computer software. There are many types of software that a software engineer can develop, such as operating systems, computer games, middleware, business applications and network control systems.

 Software Engineers working as a programmer - there are other roles too. This may seem an "idealized" version - but that's what I will share what I have experienced.
I use softwares for learning and developing more of them.

My life is inspired by the web to a great extent. And I appreciate the beauty of a well developed product - from a little mobile application to giant networking websites.
The best part is contributing to what you and your surroundings use everyday - web.

Most software engineers work as employees or contractors. Software engineers work with businesses, government agencies (civilian or military), and non-profit organizations. Some software engineers work on their own as consulting software engineers. Some organizations have specialists to perform all of the tasks in the software development process. Other organizations separate software engineers based on specific software-engineering tasks.

A software engineer is capable of working for a wide variety of companies, such as IT providers and consultancies, electronics companies, and software firms.  They can be found in practically any organization using computer systems.  In general, they can be split into two types: engineers applications and engineers of systems software.

mechanical engineering jobs san diego

Mechanical engineeringjobs san diego is seeking to hire a full-time Mechanical Engineer to participate in the development of our Continuous Glucose Monitoring system. As a member of the Biolinq team, you will have the opportunity to work in an exciting startup environment and contribute to the course of product development, design, and implementation of cutting-edge technology.

Mechanical engineering is the discipline that applies engineering physics, engineering mathematics, and materials science principles to design, analyze, manufacture, and maintain mechanical systems. It is the branch of engineering that involves the design, production, and operation of machinery.

Mechanical engineers design power-producing machines, such as electric generators, internal combustion engines, and steam and gas turbines, as well as power-using machines, such as refrigeration and air-conditioning systems. Mechanical engineers design other machines inside buildings, such as elevators.

Mechanical engineers design everything from new batteries, athletic equipment to medical devices and from personal computers, air conditioners, automobile engines to electric power plants. These engineers also design machines that produce these innovations.

The scope of mechanical engineering in India and abroad is huge for every aspect of our lives are touched by mechanical engineering in one way of the other. Spanning multiple industries, the career opportunities for students pursuing the programme is huge.

IT engineer salary

IT engineers help to meet their employer's needs for computer hardware, software and networking tools. They work to develop, test, install, configure and troubleshoot computer hardware and software. IT engineers typically work in an office or research lab.

Year after year,IT engineer salary are paid the highest average starting salary. Engineers have a median annual wage of $91,010 and the engineering field projects to have employment growth of nearly 140,000 new jobs over the next decade.

IT Engineers are high-level IT personnel who design, install, and maintain a company's computer systems. They are responsible for testing, configuring, and troubleshooting hardware, software, and networking systems to meet the needs of the employer. IT Engineers may also be required to train staff and manage projects.

So, the salary should be around 10–12 lakhs per annum for a typical IT Professional. For skills in demand, this could go upto 1.5 or 2 Lakhs per year of experience. However, there are some niche skills and there are some (rare) instances of companies paying salaries of upto Rs. 50 lakhs per annum