Unit 1: Recognizing Computers
•Download as PPT, PDF•
0 likes•36 views
LOOKING AT NETWORKS
Recommended
More Related Content
What's hot
What's hot (20)
Similar to Unit 1: Recognizing Computers
Similar to Unit 1: Recognizing Computers (20)
Recently uploaded
Recently uploaded (20)
Unit 1: Recognizing Computers
- 1. Unit 1: Recognizing Computers Lesson 2: Looking at Networks Ellian Marie Canoog T-l CNHS-DC
- 2. 2 Lesson 2: Looking at Networks What a network is Different types of networks Features and benefits of networks How computers connect and interact with a network
- 3. 3 What is a Network? A system that allows two or more computers to communicate and share resources Sometimes called centralized systems as all data flows to and from these computers Storage system is generally quite large, designed to store software programs and data files Can be a combination of PCs, machines, dumb terminals, smart terminals.
- 5. 5 Types of Networks LAN Local Area Network - small to medium number of computers connected together in confined area
- 6. 6 Types of Networks WAN Wide Area Network - computers connected over long distances
- 7. 7 Types of Networks MAN Metropolitan Area Network - computers connected in metropolitan area
- 8. 8 Types of Networks CAN Campus Area Network - computers connected in limited area such as a campus or military base
- 9. 9 Types of Networks HAN Home Area Network - computers connected in a home environment
- 10. 10 Each computer requires network interface card (NIC) and appropriate cables to connect to network server Client/Server networks have PCs that function on their own and connect to network for information
- 12. 12 Connecting to a Network In order to connect to a network, need to have a network interface card installed and set up correctly to recognize network
- 13. Connecting to a Network Regardless of whether it is a cable or a wireless connection, you still need a network card –Wireless technology also requires a router be set up to connect to the network
- 14. Connecting to a Network Once network card installed, computer must then be set up to recognize network –Network connection software of some type needed
- 15. 15 Interacting with Networks Logging into network requires valid user id and password Depending on requirements, computer might run a script that tells network what access rights you have – Which drives/volumes, printers, modems, folders, etc., you can access – Number of files, programs, or drives available Every time you need to use a program or access a file stored on the network, you are sending a request to the network for that item
Editor's Notes
- Pg 9 This is an outline of the topics covered in this lesson. Focus here will be on what a network is, the different types, and the benefits and disadvantages of each.
- Pg 9 Objective 1.1.10 Spend some time discussing how information can only be shared via a network; otherwise it requires users to copy information to a device that then has to be transported to the other computer(s). Discuss how the centralized system terminology is very applicable to a network as most information must flow from and to the network through the requests made by users connected to the network. Provide examples of this including a simple one of sending e-mail back and forth, to multiple users processing information on a network requesting past insurance data or entering new or renewed accounts to someone who is creating a presentation on increased accounts. Open a class discussion to see how many people are aware of networks and how they can be a combination of different machines, e.g., the teller’s computer and ATMs are smart terminals, the financial advisors in that bank may have a desktop machine for processing letters to customers and are also connected to the mainframe system to pull up information about a customer’s accounts, the network used in the bank may be a Windows-based system but it is connected to the bank’s mainframe system that contains all archival information about every customer for all branches, etc.
- Pg 9 Discuss the different types of network. It isn’t necessary to discuss the different types of network software or hardware that need to be installed prior to setting up one of these network types.
- Pg 9 Discuss the different types of network. It isn’t necessary to discuss the different types of network software or hardware that need to be installed prior to setting up one of these network types.
- Pg 9 Discuss the different types of network. It isn’t necessary to discuss the different types of network software or hardware that need to be installed prior to setting up one of these network types.
- Pg 9 Discuss the different types of network. It isn’t necessary to discuss the different types of network software or hardware that need to be installed prior to setting up one of these network types.
- Pg 9 Discuss the different types of network. It isn’t necessary to discuss the different types of network software or hardware that need to be installed prior to setting up one of these network types.
- Pg 9 Discuss the different types of network. It isn’t necessary to discuss the different types of network software or hardware that need to be installed prior to setting up one of these network types.
- Pg 9 You can begin to introduce how computers are connected to a network and discuss a brief history of how they used to be set up (central system for information with no storage capacity at the user’s end) to individual systems that can be connected or used as stand-alone systems.
- Pg 10 Begin to briefly discuss what hardware requirements are needed in order to connect to a network. This is discussed further in Living Online Module C so you don’t need to go into a lot of detail here. The main point is that they need a network card and a cable/wireless connection of some sort. The network card shown here is an example only. Let students know that there are numerous types of cards that can be used, depending on the type of connection and type of computer.
- Pg 11 Objective 1.1.11 This topic addresses why the questions that students sometimes have regarding why they don’t see or have the same things on their computer as someone else, or why the network seems slow. People tend to blame the computer for not being “fast enough” but sometimes the delay occurs in other areas that they don’t consider such as illustrated in the last point. This is also true for Internet connections. Many people don’t realize or recognize that the Internet is also a network and the speed at which they get information depends on the connection speed, the number of other users online, etc.