1 Pertemuan 1 Connecting to the Internet. Discussion Topics Requirements for Internet connection PC basics Network interface card NIC and modem installation.

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Presentation transcript:

1 Pertemuan 1 Connecting to the Internet

Discussion Topics Requirements for Internet connection PC basics Network interface card NIC and modem installation Overview of high-speed and dial-up connectivity TCP/IP description and configuration Testing connectivity with ping Web browser and plug-ins Troubleshooting Internet connection problems 2

3 Requirements for Internet Connection A physical connection is made by connecting a specialized expansion card such as a modem or a network interface card (NIC) from a computer (PC) to a network. The logical connection uses standards called protocols. The application that interprets the data and displays the information in an understandable form is the last part of the connection. –Web browser –File Transfer Protocol (FTP)

4 PC Basics Personal Computer Subsystems Printed circuit board (PCB) CD-ROM drive Central processing unit (CPU) Floppy disk drive Hard disk drive Microprocessor Motherboard Bus Random-access memory (RAM) Read-only memory (ROM) System unit Expansion slot Power supply Backplane Components Backplane Network interface card (NIC) Video card Audio card Parallel port Serial port Mouse port Power cord

5 PC Basics

6

7

8 AGP Expansion Slot PCI Expansion Slots

9 Network Interface Cards

10 NIC and Modem Installation A modem, or modulator- demodulator, is a device that provides the computer with connectivity to a telephone line. PCMCIA wired and wireless NICs. Desktop systems may use an internal or external NIC.

11 High-Speed and Dialup Connectivity Inevitably the high-speed services used in the corporate environment, such as Digital Subscriber Line (DSL) and cable modem access, moved to the consumer market. These services no longer required expensive equipment or a second phone line. These are "always on" services that provide instant access and do not require a connection to be established for each session. This gives greater reliability and flexibility, and has led to the ease of Internet connection sharing by small office and home networks.

12 TCP/IP Description and Configuration Transmission Control Protocol/Internet Protocol (TCP/IP) is a set of protocols or rules developed to allow cooperating computers to share resources across a network.

13 TCP/IP description and configuration

14 TCP/IP description and configuration

15 Testing Connectivity with Ping The ping command works by sending multiple IP packets to a specified destination. Each packet sent is a request for a reply. The ping command is used to test the NIC transmit/receive function, the TCP/IP configuration, and network connectivity.

16 Web Browser and Plug-Ins Sample of plug-in applications These applications work in conjunction with the browser to launch the program required to view the following special files: Flash – plays multimedia files, which was created by Macromedia Flash Quicktime – plays video files, which was created by Apple Real Player – plays audio files

17 Troubleshooting Internet Connections

18 Summary Three requirements for an Internet connection are physical connection, a logical connection and a Web browser.