Loading...
Community presentation
Worked for 6s Absolutely. I checked the complete Chapter 8 — Computer Networks (pages 29–36) from your file. This version includes all topics in the chapter, including the parts…
Create your own version
Use this visual direction as inspiration for a new Presenton deck.
Use this designCreator prompt
Worked for 6s Absolutely. I checked the complete Chapter 8 — Computer Networks (pages 29–36) from your file. This version includes all topics in the chapter, including the parts that were missing before: server types, TCP/IP, HTTP, FTP, DNS, MAC address, IP address, URL, and domain names. I have arranged the complete chapter into 30 simple PPT slides. I am only grouping the original content into slides; I am not adding explanations or changing the content. CHAPTER 8 — COMPUTER NETWORKS Slide 1 — Computer Networks Computer Networks Its a group of computers and other devices connected to each other electronically through a communication medium --- Slide 2 — Need for Network Need for Network Resource sharing Any hardware / software resource in one system can be shared with other systems in the network. Price performance ratio The cost of purchasing licensed software for each computer can be reduced by purchasing network versions of such software in a network. Communication The computer network helps users to communicate with any other computer in the network through its services like e-mail, chatting, video conferencing etc. Reliability In a network it is possible to backup data on multiple computers. This helps users to retrieve data in the case of failures in accessing data. Scalability Computing capacity can be increased or decreased easily by adding or removing computers to the network. --- Slide 4 — Some Key Terms Some key terms Bandwidth It measures the amount of data that can be sent over a specific connection in a given amount of time. Noise It is unwanted electric or electromagnetic energy that lowers the quantity of data signals. Node Any device which is directly connected to a network is called a Node. --- Slide 5 — Data Communication System Data Communication System Data Communication is the exchange of digital data between any two devices through a medium of transmission. 5 basic elements Message: It is the information to be communicated Sender: The computer or devices that is used to sending messages Receiver: The computer or device that receives the messages Medium: It is the physical path through which a message travels from the sender to the receiver Protocol: The rules under which message transmission takes place between the sender and the receiver. --- Slide 6 — Communication Medium Communication Medium The medium for data transmission over a computer network is called communication channel or communication medium. Two types 1. Guided 2. Unguided Guided Medium Coaxial cable, twisted pair cable, Ethernet cable and optical fibre cable --- Slide 7 — Twisted Pair Cable Twisted pair cable (Ethernet cable) Most widely used Two types Unshielded Twisted pair (UTP), Shielded Twisted Pair (STP) Characteristics of UTP cable Low cost Thin and flexible Easy installation Carry data upto a length of 100 m Characteristics of STP cable Better immunity against noise Expensive Difficult to install RJ-45 connector is used to connect UTP / STP twisted pair cable to a computer. --- Slide 8 — Coaxial Cable & Optical Fibre Cable Coaxial cable Carries data to long distance 185-500 m High band width Less noise Thicker than twisted pair Less flexible Difficult to install Optical fibre cable Data travels as fast as light High bandwidth Carries data for a long distance It uses light for data transmission Most expensive and efficient Installation and maintenance are difficult --- Slide 9 — Unguided Medium Unguided Medium Electro magnetic waves are used for wireless communication. Radio Waves Frequency range is 3 KHz to 3 GHz Used for short and long distance communication Waves are transmitted in all directions Inexpensive than wired media Can penetrate through most objects Transmission can be affected by motors and other electric equipments Less secure Permission required for radio wave transmission --- Slide 10 — Microwaves & Infrared Waves Microwaves Frequency range is 300 MHz to 300 GHz Travels in straight line Can not penetrate any solid object Inexpensive than wired media Infrared Waves Frequency range is 300 GHz to 400 THz Used for short range communication Line of sight transmission Only two devices can communicate at a time Can not cross solid objects The longer the distance the weaker the performance --- Slide 11 — Bluetooth Wireless Communication technologies using radio waves Bluetooth Frequency range is 2.402 GHz to 2.480 GHz Used for short distance communication Used in cell phones, laptops, mouse, keyboard etc. It cannot connect upto 8 devices simultaneously Slow data transfer rate --- Slide 12 — Wi-Fi Wi-Fi Frequency range is 2.4 GHz to 5 GHz Data transmission speed upto 54 Mbps It can be used to connect more number of devices simultaneously Used for communication upto 375 ft --- Slide 13 — WiMAX WiMAX Worldwide Interoperability for Microwave Access Frequency range is 2 GHz to 11 GHz Used to provide high speed wireless internet access over very long distances Hundreds of users can connect to a single station High speed connection upto 70 Mbps Weather conditions may interrupt the signal High power consumption --- Slide 14 — Satellite Link Satellite link Uses Geostationary satellites These satellites contains an electronic device called transponder Transponders are used to amplify and re-broadcast signals to earth Transmission of signals from earth to a satellite is called uplink Transmission of signals from satellite to earth is called Downlink Uplink frequency is 10.6 GHz to 30.0 GHz Downlink frequency is 1.5 GHz to 20.0 GHz It can cover a large area of the earth Expensive Requires legal permission and authorisation --- Slide 15 — Data Communication Devices Data Communication Devices Its an interface between computer and the communication channels Network Interface Card (NIC) It breaks up data into manageable units Translate the protocol Some NIC cards have wireless connection Data transfer rate is 1 Gbps Hub Used to connect devices of same network It transmit the packet to all other computers connected to it It increases the network traffic and reduces the effective band width --- Slide 16 — Switch, Repeater & Bridge Switch A switch is a device that connects several computers to form a network. It an intelligent device because it can transmit the received data to the destination only. It will store the addresses of all the devices connected to it. Repeater Used to regenerates the signals through a communication medium Bridge A bridge is a device used to segmentize a network. A network can be split into different segments and can be interconnected using a bridge. This reduces the amount of traffic on a network. --- Slide 17 — Router & Gateway Router A router is a device that can interconnect two networks of the same type using the same protocol. It can find the optimal path for data packets to travel and reduce the amount of traffic on a network. Gateway A gateway is a device that can interconnect two different networks having different protocols. It can translate one protocol to another. It can find the optimal path for packets to reach the destination. --- Slide 18 — Data Terminal Equipments Data terminal equipments Data terminal equipment is a device that controls data flowing to or from a computer. Modem A modem is a device used for communication between computers through telephone lines. The name is formed from modulator and demodulator. It converts digital signals received from a computer to analog signals for telephone lines and vice versa. --- Slide 19 — Multiplexer / Demultiplexer Multiplexer / Demultiplexer Multiplexing divides the physical medium into logical segments called frequency channels Multiplexer combines the inputs from different sources and sends them through different channels of a medium A demultiplexer separates the signal and send them to destination --- Slide 20 — Network Topologies Network Topologies The way in which the nodes are physically interconnected to form a network. Major topologies are bus star ring mesh --- Slide 21 — Bus Topology Bus Topology In bus topology all the nodes are connected to a main cable called bus. A small device called a terminator is attached to each end of the bus. If a node has to send data to another node it sends data to the bus. The signal travels through the bus and each node checks the bus and only the intended node will accept the data. When the signal reaches the end of the bus the terminator absorbs the signal from the bus. --- Slide 22 — Characteristics of Bus Topology Characteristics of bus topology 1. Easy to install 2. Requires less cable length and hence it is cost effective 3. Failure of a node does not affect the network 4. Failure of cable (bus) or terminator leads to a breakdown of the entire network 5. Fault diagnosis is difficult 6. Only one node can transmit data at a time --- Slide 23 — Star Topology Star Topology In star topology each node is directly connected to a hub / switch. If any node has to send some information to any other node it sends the signal to the hub / switch. The signal is then broadcasted in the case of a hub to all the nodes but is accepted only by the intended node. In the case of a switch the signal is sent only to the intended node. --- Slide 24 — Characteristics of Star Topology Characteristics of star topology 1. More efficient compared to bus topology 2. Easy to install 3. Easy to diagnose faults 4. Easy to expand depending on the specifications of the central hub / switch 5. Failure of hub / switch leads to failure of the entire network 6. Requires more cable length compared to bus topology --- Slide 25 — Ring Topology Ring Topology In ring topology all nodes are connected using a cable that loops the ring or circle. A ring topology is in the form of a circle. Data travels only in one direction in a ring. Each node regenerates the signal and passes to the next node until it reaches the intended node. Characteristics of ring topology 1. No signal amplification is required as each node amplifies the signal 2. Requires less cable length and hence is cost effective 3. If one node fails, the entire network will fail 4. Addition of nodes to the network is difficult --- Slide 26 — Mesh Topology Mesh Topology In mesh topology every node is connected to other nodes. There will be more than one path between two nodes. If one path fails the data will take another path and reach the destination. Characteristics of mesh topology 1. Network will not fail even if one path between the nodes fails 2. Expensive because of the extra cables needed 3. Very complex and difficult to manage --- Slide 27 — Types of Network Types of network On the basis of the area covered, computer networks are classified as: PAN Personal Area Network LAN Local Area Network MAN Metropolitan Area Network WAN Wide Area Network Personal Area Network (PAN) PAN is a network of communicating devices (computer, mobile, tablet, printer etc.) in the proximity of an individual. It can cover an area of a radius of few meters. Local Area Network (LAN) LAN is a network of computing and communicating devices in a room, building or campus. It can cover an area of few meters to few kilometers. --- Slide 28 — MAN, WAN & Summary Metropolitan Area Network (MAN) MAN is a network of computing and communication devices within a city. It can cover an area of a few kilometers to a few hundred kilometers radius. MAN is usually formed by interconnecting a number of LANs and individual computers. Wide Area Network (WAN) WAN is a network of computing and communicating devices crossing the limits of a city, country or continent. It can cover an area of hundreds of Kilometers in radius. Summary of PAN, LAN, MAN, WAN Parameter PAN LAN MAN WAN Area covered Small area (Up to 10 m radius) A few meters to few Km (Up to 10 Km radius) A city and its vicinity (Up to 100 Km radius) Entire country, continent or globe Transmission speed High speed High speed Moderate speed Low speed Networking cost Negligible Inexpensive Moderately expensive Expensive --- Slide 29 — Logical Classification & Network Protocols Logical classification of networks Based on the role of the computer in the network Two categories peer to peer and client server Peer to peer No dedicated servers Any computer can act as a client or as a server at any instance Ideal for small networks Client Server The client server architecture consists of high end computer called server. Classification of servers are: File server: A computer that holds and manage files on a network Web server: A computer dedicated to responding to requests for webpages Print server: Redirect the print job from the clients to specific printers Database server: Allow clients to modify, view or delete data in a common database --- Slide 30 — Network Protocols & Identification Network protocols Its a set of rules to be followed in a network when devices in the network exchange data each other TCP / IP Transmission Control Protocol / Internet Protocol Used to interconnect network devices on the local networks and then internet The data is first broken in to smaller packets by TCP then send Internet Protocol (IP) is responsible for the delivery of each of these packets to the right destination HTTP, FTP and DNS are the three sub protocols of TCP/IP protocol HTTP Hypertext Text Transfer protocol It is a standard protocol for transferring request from client side and to receive responses from server side The pair of HTTP request and response is called HTTP session HTTP is transmission medium independent Its a stateless protocol FTP File Transfer Protocol It is the easiest way to transfer files between computers over the internet A FTP client program can be used to upload and download files (FileZilla, CuteFTP etc.) DNS Domain Name System Returns the IP address of the domain name that we type in the browser's address bar DNS maintain a database to store domain names and IP address information of all websites on the internet Media Access Control (MAC) addresses A universally unique address (12 digit hexadecimal number) assigned to each NIC (Network Interface Card) by its manufacturer. MAC addresses are usually written in one of the following two formats: MM:MM:MM:SS:SS:SS or MM-MM-MM-SS-SS-SS Internet Protocol (IP) Address An IP address is a unique part numeric address assigned to each node on a network for their unique identification. An IP address is a group of four bytes (or 32 bits) each of which can be a number from 0 to 255. Uniform Resource Locator (URL) Its a formatted string used to identify a network resource on the internet URL consists of letters, numbers and punctuations Three parts: 1. Network Protocol 2. Domain name 3. Filename Protocol Indicate the protocol is used to access the information specified in the domain Domain Name It is the name assigned to a server through domain name system File Name It is the file to be opened Generic Domain Names .com Commercial Business .edu Educational Institutions .gov Government agencies .mil Military .net Network organisations .org Nonprofit organisations Country Specific Domain Names .in India .au Australia .ca Canada .ch China .jp Japan .us USA --- Important: The above is the complete Chapter 8 content, but because the last slide contains a lot of material, for an actual classroom PPT I would recommend making it 31–32 slides rather than shrinking the text too much. The source chapter itself runs from pages 29–36. Imp Follow Design: {"palette":["Network blue #0F2A4A — primary headers and structural emphasis","Signal amber #FF7A00 — key network terms, packet paths, and focal highlights","Crisp cloud #F8FAFC — primary slide background for clear classroom readability","Container white #FFFFFF — elevated card surfaces and topology diagrams","Cable conduit gray #E2E8F0 — structural dividers and comparative table borders","Terminal slate #334155 — body copy and detailed definitions"],"fonts":{"Outfit":"https://fonts.googleapis.com/css2?family=Outfit:wght@100..900&display=swap","DM Sans":"https://fonts.googleapis.com/css2?family=DM+Sans:ital,wght@0,100..1000;1,100..1000&display=swap","JetBrains Mono":"https://fonts.googleapis.com/css2?family=JetBrains+Mono:ital,wght@0,100..800;1,100..800&display=swap"},"type":"Outfit in bold geometric weights (700/600) with tight tracking for slide titles and major protocol acronyms; DM Sans (400/500) for high-legibility explanatory paragraphs and bullet points; JetBrains Mono in uppercase tabular weights for port numbers, frequency ranges (GHz/MHz), MAC addresses, and syntax formulas.","layout":"Structured 12-column engineering curriculum grid with generous 64px outer margins. Slide layouts alternate between dual-column concept breakdowns, 4-column topology matrices, and horizontal tiered data comparison tables with dedicated breadcrumb headers denoting chapter progress.","framework_treatment":"Modular white cards with hairline borders (1px #E2E8F0) and subtle soft drop shadows; pill badges denoting protocol layers and frequency spectrums; structured comparison tables with zebra header striping; custom vector-styled topology node layouts with clear bidirectional arrows.","feels_like":"A modern Stanford CS144 networking syllabus meets a crisp Stripe technical documentation manual"}
Presentation overview
This community presentation was shared by Karmooz as a complete 35-slide example. Worked for 6s Absolutely. I checked the complete Chapter 8 — Computer Networks (pages 29–36) from your file. This version includes all topics in the chapter, including the parts… The preview lets you review the full sequence in order, rather than judging the design from a single cover image.
Use it as a reference for planning your own deck: notice how the amount of information changes from slide to slide, where visual emphasis appears, and how repeated design choices help the presentation feel connected. Community examples are inspiration, not locked templates, so you can keep the ideas that fit your audience and replace anything that does not.
Learn from the example
Look at the job each slide performs. Identify where the deck introduces its subject, develops the main points, adds evidence or examples, and moves toward a conclusion.
Notice which element attracts attention first and how headings, supporting text, images, and data are separated. Strong hierarchy makes the intended reading order obvious.
Compare spacing, typography, color, and repeated components across the slides. Consistent rules help varied content feel like one presentation instead of unrelated screens.
Make it your own
Begin with your audience and the decision, lesson, or action the presentation should support. Replace the topic, examples, evidence, and visuals with material you can verify, then edit every slide for one clear takeaway. You can borrow the visual direction without copying the creator's wording or message. Presenton will use this community deck as a design reference while you develop content for your own purpose.
