Computer Networks notes
65 notes by 59 users · Page 1 of 2
This Computer Networks notes page on GoConqr brings together user-made notes on hardware, connectivity, protocols and error checking. School students can use them to revise these topics, while teachers can find material for lessons. There are over 50 notes, with a strong school-level focus. Pick a note and start exploring.
Select topic
- Advantages and effects of networks91
- Types of networks641
- Network topologies919
- Client-server and peer-to-peer networks64
- Network hardware483
- Wired and wireless networks200
- Data transmission147
- Error detection15
- Network performance29
- Network protocols and layers282
- IP addressing and DNS23
- The internet and World Wide Web110
- Network security81
Notes
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Crash Course Computer Science Hi, I’m Carrie Anne, and welcome to CrashCourse Computer Science! The internet is amazing. In just a few keystrokes, we can stream videos on Youtube -- Hello! -- read articles on Wikipedia, order supplies on amazon, v...
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Unit 4 Scenario Assignment for learners Unit 4: Computer Networks You work for Progress IT Support in their networking division. A client, Westwood Dental Practice, is about to undertake a major reburishment of the Dental Pr...
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Introduction Introduction - So, how did the internet begin? A precursor network to the internet was created in 1969 by the Department of Defense, called ARPANET (Advanced Research Projects Agency Network). Its initial purpos...
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The Internet - created from Mind Map What is the internet DNS IP
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Fundamentals of computer networks - Criado a partir de um Mapa Mental Glossary Bluetooth Wireless technology used for transmitting data over short distances. data Units of information. In computing there can be different data types, including integers, characters and Boolean. Dat...
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Network topologies and protocols Network topologies, protocols and layers Ethernet: - a system for connecting a number of computer systems to form a local area network, with protocols to control the passing of information and to avoid simu...
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Connectivity Connectivity WAYS OF CONNECTING: •Networking •Wireless fidelity •Wired connections •Servers •Syncing devices •The Cloud/ Air drop •Bluetooth •Media cards WHY CONNECT? •Sharing information •Sharing printers •Sharing a ...
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Error Checking Error Checking: Parity Bits Parity Bits: Parity Bits are an extra bit added to a string of bits to ensure that a number is correct There are two types of Parity: Odd Parity: In this you will set parity to a 1 when you...
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Client server model - created from Mind Map API (application programming language) Websocket Web CRUD
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Computing network and Server notes The Client server model. Server is a powerful computer which provides a service or resource required by computers. A client is a computer which requires services from a service, it gets them by sending requests to the...
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Computer science Servers and networks 2 parts to client server: - Client (your device) - requests resources or services from server - Server - Powerful computer - provides resources or services - Antivirus , data etc - if lots of requ...
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Computing 1.4 OCR IGCSE OCR GCSE Computing Unit 1.4 Types of Network LAN (Local Area Network) With a LAN network computers are connected together over a small geographical area such as a single building or a single site. LAN networks can be ...
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Internetworking - Erstellt aus einer Mindmap Physical Layer Chapter 2 Application Layer Chapter 1 Introdution
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Tech in Action: Chapter 7 Notes Networking Fundamentals Objective 7.1 Explain what a network is and the pros and cons of having one. Network Architectures
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Packets & Protocols - Revision Protocol- A set of agreed rules and standards. Often used in computer communications.IP- Internet Protocol: IP addresses are used to uniquely identify computers on an IP-based network. Formed of 4 byte numbers.TCP- Tr...
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DNS + HTML DNS Services + IP Addressing(DNS is Domain Name Server)Domain names are are websites name e.g www.google.co.ukHowever the IP Address for example would be 74.125.224.72The Domain names are converted into an IP address ...
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Revision - protocols IP- Internet Protocol: IP addresses are unique identifiers for computers(Devices) 4 byte numbersTCP- Transmission Control Protocol: Used with IP for communication, Deals with transmission of data packets(addressing an...
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Connectivity device RouterPurpose- directs network traffic to the correct computer or device.Typical use in a business- these are used to connect different networks together and to the internet. Wireless NICPurpose- connecting to compute...
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Chapter 16 HardwareNIC (Network interface controller) Generates and receives electrical signals Works at the physical and data link layers Router Connects networks Forwards data packets Works as the network layer MAC addresses 4...
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Network Hardware Router:Forms a LAN by connecting devices within a building. Routers often incorporate a modem into the hardware..Modem:Enables a computer to connect to the internet over a telephone line. A modem converts digital sign...
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Error Detection Explain how checksums can be used to detect errors in data transmissionA checksum function is applied, to a number of bytes/a block of data. The checksum is sent as part of the data, it is recalculated after data tran...
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LAN Harware - created from Mind Map A Router Ethernet cables Network Interface Card
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Enter text here - created from Mind Map Circuit switching Packet switching Data is split into packets
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Data Transmission By Karl Taylor - created from Mind Map Computers connected together are networked Network Interface Card (NIC) Methods Of Transmission
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revision for peer to peer and client server client server lan = local area network wan = wide area network one or more servers may be part of a local area network a server may also be a part of a wide area network google has massive servers in several dif...
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Untitled Every item from text to images to sound can be reduced to a numerical representation. These numbers can be written in any base but computers work best with binary (base-2). These numbers must then be converted to a ph...
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Untitled Technology Define a network - A computer network is a group of computers that use a set of common communication protocols over digital interconnections for the purpose of sharing resources located on or provided by th...
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Conectivity Page 20) A) The benifits of using a wireless network in the home is freedom of moving around the house staying connected; genrally cheaper only the cost of the router to set up a wirless network (and a modem to connec...
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MOVILE DEVICES - creado desde un Mapa Mental Technological advances and the evolution of networks have made possible the development of increasingly smaller and more sophisticated mobile devices, capable of communicating intelligently and transparently for those...
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Networking & the Internet - created from Mind Map Internet Network Topologies Connectivity
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ICT Revision Notes for ICTlocal area networkto create a home network you need to set up a local area network or LAN.this connects all the computers in the house so that resources can be shared benefits of a home network includes s...
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Untitled Packet switching take the most convenient route to get where it needs to go.
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client server and peer to peer networking definitions server - a computer that provides data to other computer. it may serve data to systems on a LAN or a WAN over the internet. specialist servers carry out one particular service for the network most common ty...
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NETWORKS - created from Mind Map Advantages of networks Types of networks Disadvantages of network
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networking - created from Mind Map advantages disadvantages types of networks.
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Untitled Parrallel and Serial transmission Parrallel Transmission- a number of bits per data are transmitted simultanously over an equal number of channels/ wires. this allows the bits in a whole byte of information to be...
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Untitled Explain the difference between the ways in which parallel and serial communications are carried out. (2) Serial transmission is carried out along a single channel sending one bit after the other, whereas parallel tran...
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network glossary network glossary network-two or more devices connected together in order to communicate and share node-a device connected to a network packet-a chunk of data that forms part of a message hardware-t...
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internet - created from Mind Map LAN Local area network) wan (wide area network) Devices that are connected over a small geographycal area
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Interconnected mobile devices - creado desde un Mapa Mental Mobile devices Types of wireless connection Connected home
More Computer Networks resources
About computer networks notes
GoConqr OriginalUsing computer networks notes
Start with Connectivity for an overview of ways to connect, including wireless and wired connections. Then try Network Hardware for notes on devices such as routers and modems. Reading these together can help you connect the names of devices with their uses.
For protocols, the revision notes on packets and protocols introduce agreed rules and IP addresses. DNS + HTML includes notes on domain names and IP addressing. If you are revising data transmission, Error Detection covers checksums, while Error Checking looks at parity bits.
Move between formats
Read a short section, then close the note and write down what you remember. Reopen it to check your explanation. When you want to test your recall, switch to a quiz on the unit page; for key terms, try its flashcards. Choose a topic and work through the notes at your own pace.
Frequently asked questions
Which note should I start with?
Start with Connectivity if you want an overview of ways to connect, including wired and wireless connections. If you are focusing on equipment, Network Hardware covers routers and modems. Both offer a starting point before you move on to notes about protocols or error checking.
What topics do the notes cover?
The list includes notes on connectivity devices, network hardware, protocols, domain names and error checking. Error Detection covers checksums, while Error Checking looks at parity bits. There are also notes on network topologies and protocols, so you can choose a topic that matches your revision.
Are the notes free to use?
Yes. Every resource listed here is free to open and study, and you do not need an account. The notes were made by GoConqr users. A free account also lets you save quiz scores and make your own quizzes, mind maps, flashcards and notes.