OSI Model Essay

The OSI, Open Systems Interconnection, model was first introduced in 1984 and was design to be a model and teaching tool to help better understand the rules of networking that systems must undergo to communicate. The OSI model consist of seven hierarchical layers that defines the path that data must travel. These layers are: Physical, Data Link, Network, Transport, Session, Presentation, and Application. The first and lowest level of the model is the Physical layer. The physical layer consists

The Internet in the year 2009. We send e-mails, make calls over the internet and discuss topics we take an interest in. Even our banking is going virtual. But what we take for granted today was only a vague idea fifty years ago. In order to understand how we got this far Let’s go back to 1957, when everything began. Before 1957 computers only worked on one task at a time. This is called batch processing. Of course, this was quite ineffective. With computers getting bigger and bigger they had to be

postcards”. However, before these networks can work seamlessly together, they must use a common protocol, or set of rules for transmitting and receiving these packets of data. There are several protocols currently in use, including the OSI Model, the TCP/IP Model, UDP, HTTP, and FDP (Mitchell, 2014), but the most commonly used is Transmission Control Protocol/Internet Protocol (TCP/IP) (Gilmer, 2011). Even as early as 1977, TCP/IP was being used by other networks to link to ARPANET (Kozierok,

Describe what the user will mainly use a specific LAN for: LAN is a local-area network which covers a relatively small area. Most LAN’s are restricted to a single building or groups of buildings. One LAN can be connected to other LANs for any distance through telephone lines and radio waves. LAN connects the computer hardware in a localized area for example in an office or home. Furthermore, LANs use wired connections to link the computers to each other and to a variety of peripheral devices such

5G WIRELESS ACCESS Abstract: 5G technology stands for fifth Generation Mobile technology .From era 1g to 2.5g and from 3g to 5g this world of telecommunication has seen a number has seen upgrades along with improved performance with every passing day. This fast revolution in mobile computing changes our everyday life. That is way we work, associate, learn and so on. This paper also focuses on all the preceding generations of mobile communication

Interconnection Reference Model As we all know, the growth of computer networks continues to rapidly grow. The digital revolution has changed the way we work and communicate almost beyond recognition. Provided that, foreseeing the changes and potential compatibility problems, in the mid nineteen eighties, the international standard organization (ISO) developed a networking reference model to standardize how network systems communicate with each other. It is a logical model for how network systems

topology is best in wireless networks. Following diagram shows Mesh topology: 3. What is the OSI Network Model and explain how the layers correspond to the Internet Protocol Suite? Answer: OSI is termed as Open Systems Interconnection model. This model systematizes and describes the internal functions of the communication systems by dividing it into abstraction layers. This model is a product of OSI (International Organization for Standardization). It is comprised of seven

Assignment 10.1 Type pf networks Type of networks What it is? How it works? Local area network Local area network is a group of desktop computers linked through a network that are all located at a single business site. The LANS can have more than 100 users. Users can use printing and other kind of services needed through applications run on the lan server. Can be used as web server. It can also be shared to others at the same lan. Metropolitan area network Metropolitan area network is a high speed

Introduction In this report, I will discuss 3 sections: Protocol Stack, Subnetting and Results. Within the protocol stack section, I will explain how the encapsulation process works within each layer of both TCP/IP & IOS/OSI models. The explanations will relate to the stages which occur within the process of requesting a web page from the web server via PC0 over the Wide Area Network (WAN). Within the subnetting section, I will produce a guide on subnetting an IP address. Within, the results section

Open System Interconnection Model OSI is short for Open System Interconnection, which is an ISO standard for worldwide communications that defines a networking framework for implementing protocols in seven layers. History and Reasoning for… -------------------------- The early development of networks was disorganised. And by the early 80's there was a great increase in the number and size of networks. Companies started to realise how useful networks