TYPES OF COMPUTER NETWORKS: A computer networks is a communication system connecting two or more computers that work together to exchange information & share resources. A network may consist of microcomputers or it may integrate microcomputers or other devices with large computer. Networks can be controlled by all nodes co-ordinarily & supply all resource. These networks differ in geographical size. There are three important types of networks. 1. Local Area Network 2. Metropolitan Area
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Computer Storage Devices Storage devices are used in order to store various items such as programs‚ data and instructions. Storage was used as early as 1804 by hole punching paper cards in order to control machinery. Without storage‚ the computer programs and files that exist now would not be possible. There are many different devices used for storage today such as hard drives‚ floppy drives and CD-Rom drives. Hard drives come in all computers and are the main storage device. An average hard drive
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G. L. Bajaj Institute of Management and Research Greater Noida TERM PAPER ON DETAIL STUDY OF OUTPUT DEVICES OF COMPUTER Submitted to: Submitted by: Prof. Loveleen Gaur. 25. Monika Priyadarshni. GLBIMR 26. Md. Altaf Hussian Khan. GREATER NOIDA 27. Naman Jain. 28. Naveen kumar. 29. Nikhil Kumar. 30. Prakash Pandey. ACKNOWLEDGEMENT We would like to express our gratitude to all those who gave us the possibility to complete this term
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the unit of data sent or received at each of the following layers? a. application layer:Message b. network layer:Datagram c. data-link layer:Frame Q2-12) When we say that the transport layer multiplexes and demultiplexes application layer messages‚ do we mean that a transport-layer protocol can combine several messages from the application layer in one packet? Explain. The TCP/IP protocol suite uses several protocols at some layers‚ we can say that we have multiplexing at the source and demultiplexing
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AWARDS……………………………………………... 5-6 1. INTRODUCTION…………………………………….. 7 1.1 Views of Networks 7-8 1.2 History of Computer Networks
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COMPUTER COMMUNICATION NETWORKS Objectives • • • • • What is telecommunication History of telecommunication Role of telecommunication in Organizations Interpersonal communication applications Computer networks What is telecommunication? “Transmission of data or audible/visible information by electrical/electronic means” e.g. telephone‚ telegraph‚ radio‚ television‚ computer networks (Internet) Basic elements 1. Transmitter : takes information and converts it to a signal 2. Transmission
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CPU (Central Processing Unit) which is the brains of the computer where most calculations take place. In terms of computing power‚ processor is the most important element of a computer system. Without it‚ a computer cannot even boot up or running. The performance of processors determines the speed and the performance of the notebook as well. Whether a computer system can run smooth or not is also depend on the performance of processor. Most of the processors of notebooks can be divided into two
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COMPUTER NETWORK ADMINISTRATOR A computer network (the "network") is the connection of at least two or more computers for the purpose of sharing data and resources. These resources can include printers‚ Internet access‚ file sharing‚ and electronic mail ("e-mail"). In today ’s technological environment‚ most companies and businesses have some kind of network used on a daily basis. Thus‚ it is imperative to day-to-day operations that networks run smoothly. Companies employ at least one person
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A network topology that is generally in a line formation‚ which uses several devices that are all connected to a common central cable called a bus and commonly used for LAN’s. Component Description Usually 2 or more desktop of notebook computers with a network interface card. A common printer is shared by all desktops or notebook computers. The server process requests and delivers data to the client computers over the internet or network.
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Security 4th Edition Questions Chapter 6 Questions 1. What is the typical relationship among the untrusted network‚ the firewall‚ and the trusted network? The relationship is that data is only limited to what firewalls allow via specific places called “ports”. There is the untrusted network on the outside‚ then the firewall which prevents unwanted or suspicious connections‚ and the trusted network is what lies within the bounds of the firewall. 2. What is the relationship between a TCP and UDP packet
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