Computer Networks Does anyone really know what networking is? “In the world of computers‚ networking is the practice of linking two or more computing devices together for the purpose of sharing data” (Networking Fundamentals). Now this is a great explanation but does this really help us understand? Networking has grown over many years. Where did networking come from? Lets go back to the beginning and find out how far we have come. Network research can be traced back to around the 1960’s.
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- Suresh Khanal Computer Networking Short Questions and Answer www.psexam.com Computer Networking Short Questions and Answers Suresh Khanal Kalanki‚ Kathmandu shkhanal@gmail.com shkhanal@yahoo.com Published By: http://www.psexam.com contact: info@psexam.com Computer Networking: Short Questions and Answers Published by PS Exam Kalanki‚ Kathmandu Nepal www.psexam.com Copyright ©2009 author. No part of this publication may be reproduced‚ stored in a retrieval system or transmitted
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NETWORK Computer Network also called Network is a group of computers and other devices connected to each other to share resources electronically. Networks can be as small as two computers or many thousand computers that are connected to one another. These computers are usually connected to one another through wires‚ satellite‚ and modems. Each device connected to the network is called a “node”‚ and the computer that is connected to the network is called a workstation. There are several ways
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Computer Networks NETWORKING CONCEPTS Network A network is basically an interconnection of various points to make a connected system e.g Road‚ Telephone‚ Social Data Network A computer network therefore refers to an interconnection of computers and other peripherals by use of a communication link Peer to Peer Networks In a peer-to-peer network‚ all computers are considered equal; they all have the same abilities to use the resources available on the network. Peer-to-peer networks are designed
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computer network Connects three office computers and one computer used for Point-of-Sale (POS) services at each of your stores. You also want six (6) computers in the lobby/store where patrons can download music and you can run “training classes” for people to learn about using MP3 players and get other basic information. The two offices have to be connected into one cohesive network‚ sharing POS services and other critical company information. You also need to provide a “hand out” casual
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University Department of Computer Engineering CMPE 2204 Introduction to Computer Networks Spring 2013 Chapter 1 Data Communications and Networks Overview and Protocol Layers Dr. Çağrı Güngör 1 Basic Info about the Course • Course Content (tentative): — Computer networks; network architectures; protocol layers; TCP/IP; principles of Internet; wireless networks; introduction to network management‚ etc.. • Course Objectives: — Understand widely known network protocols‚ communication
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BUYUKHAN COMPUTER NETWORKS NETWORK TELEPHONY –VOICE OVER INTERNET PROTOCOL(VoIP) VoIP is a set of technologies that enable voice calls to be carried over the internet (or other networks designed for data)‚ rather than the traditional telephone landline system-the Public Switched Telephone Networks(PSTN). VoIP uses IP protocols‚ originally designed for the internet‚ to break voice calls up into digital ‘packets’. In order for a call to take place the separate packets travel over an IP network and
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use equipment to support the identified functions. Hub related activity is “Layer One”. The naming of some devices designates the functional layer such as “Layer Two Switch” or “Layer Three Switch”. Router functions focus on “Layer Three”. User workstations and servers are often identified with “Layer Seven”. HUB Hub is a hardware device that contains multiple‚ independent ports that match the cable type of the network. Most common hubs interconnect Category 3 or 5 twisted-pair cable with
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Bit Rate and Baud Rate Identify Noise Sources 2.1.1 Introduction A simplified model of a data communication system is shown in Fig. 2.1.1. Here there are five basic components: • Source: Source is where the data is originated. Typically it is a computer‚ but it can be any other electronic equipment such as telephone handset‚ video camera‚ etc‚ which can generate data for transmission to some destination. The data to be sent is represented by x(t). COMMUNICATION MEDIUM Figure 2.1.1 Simplified
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“DESIGN EXCHANGE OF THE SINGLE CHIP MULTI-COMPUTER NETWORKS” Abstract Submitted in Partial fulfillment of the requirement for the degree of DOCTOR OF PHILOSOPHY IN COMPUTER SCIENCE by Chandra Shekhar Enrollment No:- ____________ Under the Supervision of Dr. Mohammad Hussain Professor‚ AIET‚ Lucknow COMPUTER SCIENCE Sai Nath University Ranchi‚ Jharkhand Year of Submission: ______ Introduction A recent trend in high performance computing (HPC) has been towards the use of
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