1 / 47

Fundamentals of Networking

Fundamentals of Networking. Discovery 1, Chapter 2 Operating Systems. Objectives. Describe the purpose of an OS and identify common operating systems available. Perform an installation of an OS and prepare the computer to participate on the network. Maintain an operating system.

kane
Download Presentation

Fundamentals of Networking

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Fundamentals of Networking Discovery 1, Chapter 2 Operating Systems

  2. Objectives • Describe the purpose of an OS and identify common operating systems available. • Perform an installation of an OS and prepare the computer to participate on the network. • Maintain an operating system.

  3. Purpose of the OS • Allows components to work together • Write a report & print • Enter on keyboard • Stored in RAM • Processed by CPU • Displayed on monitor • Printed on printer • All computerized devices require an OS

  4. How the OS Works • Loads OS into RAM from disk drive • Shell • Requests tasks from the computer • Provides access to the OS • Interact with the shell using: • Command Line Interface (CLI) • Graphical User Interface (GUI) • Kernel • OS code that interacts with the computer hardware is known as the • Manages communication between hardware & software

  5. The OS

  6. CLI

  7. GUI

  8. The OS • Manage one user at a time • Multitask • OS keeps track of resources used • What are some resources are not directly connected to the PC? • Server storage, Network printing…

  9. Redirector & NOS • Software that allows computer to send/receive over network • Network Client • Allows device to be shared • Acts as though it were directly connected

  10. Review so far… • Which interface has a command prompt? • CLI • After powering up, the OS gets loaded into where? • RAM • What interfaces with the user & application? • Shell

  11. OS License • Commercial License • Windows, Mac, UNIX • GNU Public License (GPL) • FREE • Linux

  12. Comparing Licenses

  13. OS Requirements • Amount of RAM • Hard disk space required • Processor type and speed • Video resolution • Minimum • Poor performance • Recommended

  14. Activity- Commercial or GPL

  15. Choosing An OS • Must meet requirements of user • Support applications • Security sufficient • Is the hardware supported by the OS? • Does it support the RAM, HD, CPU, Sound Card, etc. • Can your company support the new OS? • At home, will support be available readily?

  16. TCO • Total Cost of Ownership • Buying, installing, supporting

  17. Review • Which type of OS provides full access to the source code? • GPL • Which type of OS is costly? • Commercial • Which type of OS provides support through its users? • GPL

  18. Review • Name 4 specifications for OS install requirements. • HD • Processor • RAM • Video Resolution • Describe a network redirector. • What are the 2 ways you can interact with the shell? • CLI & GUI

  19. Lab 2.2 • Specifications of OS

  20. Ways to Install an OS • Clean Install • Upgrade • Multi-boot • Virtualization

  21. Clean Install • New system or no way to upgrade • Deletes all data • Applications need to be reinstalled • When would you do a clean install?

  22. Upgrade OS • System settings, applications and data are saved • Replaces old OS files with new ones

  23. Installing the OS- Multi-boot • Can install more than one OS to a drive • Each has its own partition • Own files & config settings • On start, user chooses which OS • Only one OS runs at a time

  24. Installing the OS- Virtualization • Used on servers • So multiple copies of OS can be used on a single set of hardware

  25. Activity

  26. Prepare for Install • Verify all hardware can work with the OS • Meet or exceed the minimum hardware requirements • Do you have CD or DVD & the correct drive? • Make sure PC is virus free AND make a full backup of all important files • If doing a clean-install, make sure you have all application software for re-installation

  27. File System • Verify system used • NTFS • FAT16 • FAT32 • These indicate • How large of a HD can be used • How files are organized, stored, retrieved and encrypted from the HD

  28. Partitions • On clean install, some techs… • Partition 1 for OS • Partition 2 for data • Also used for multi-boot • When upgrade OS, data will not be deleted

  29. Review so far… • What is a partition? • What happens to data on a HD during a clean install? • How many OS’s are running in a multiboot system? • What happens to applications during an upgrade?

  30. Configure for Network • What is a network? • Group of devices connected to each other to share info & resources • NIC • IP Address • Id’s computer UNIQUE • Subnet Mask • Id’s the network it is on • Default Gateway • The way out of the network to communicate w/ other networks

  31. Network Communication

  32. Configuring the IP Address • Manual (static) or Dynamic (automatic) pool from server

  33. Computer Naming • Manually assigned • For easy sharing • Admin designs naming scheme • CL-PRT-Eng-01represents the 1stcolor laser printer in the Engineering Department

  34. Planning Names & Addresses • The larger the network gets, you MUST be organized & documented! • Come up with guidelines

  35. Review • A DHCP server assigns address how? • Automatically/Dynamically • What are 3 settings you need to connect to a network? • IP, Subnet Mask, Default Gateway • What is a default gateway? • Address to get out of the network so it can communicate with other networks • Describe a partition.

  36. Review • Which install method requires applications to be reinstalled? • Clean Install • Before upgrading the OS, what should you do with your data? • Back it up • To be on a network, what 2 things need to be unique? • IP address & computer name

  37. When to Apply Patches • What’s a patch? • Piece of program code that can correct a problem or enhance the functionality of an application program or OS • Update computers often BUT make sure you understand the patch first!

  38. What Version Do You Have? • Windows 7, Vista, XP • Start • Winver • Version • EULA 3

  39. Applying the OS Patch • Automatic installation • Select time to install • Prompt for Permission • Manual

  40. Auto, Manual, or Prompt?

  41. Application Software Patches • Browsers, Office, other programs • Repair a detected vulnerability or other problem • Found on manufacturer’s site

  42. Question??? • Windows XP has a known problem working with certain AMD processors. How could you best solve this problem? • Reinstall the CPU • Delete XP & do a clean install • Set up another XP partition • Install a Windows patch that fixes it • Replace the processor with a different one

  43. Lab 2.3.3

  44. Review • What’s a patch? • Where can you find a patch? • Manufacturer’s web site • What are the 3 methods for getting OS updates? • Auto, Manual, With Permission • What user interface has icons? • GUI

  45. Review • Where do devices get IP addresses from dynamically? • A DHCP server • What is needed to install two OS’s on a PC? • Multiple partitions • What letter grade will you get on this test? • A or B, hopefully

  46. Review- 5

  47. Fundamentals of Networking Discovery 1, Chapter 2 Operating Systems

More Related