- Networking Hardware. Objectives. Identify major hardware devices in a computer network Describe the factors involved in choosing a network adapter, hub, switch, or router Describe the functions of repeaters, hubs, bridges, switches, and gateways
Presentation Transcript - Networking Hardware
- Objectives • Identify major hardware • devices in a computer network • Describe the factors involved in choosing a network adapter, hub, switch, or router • Describe the functions of repeaters, hubs, bridges, switches, and gateways • Identify problems associated with connectivity hardware
- Network Adapters • Also called network interface cards (NICs) • Connectivity devices enabling a workstation, server, printer, or other node to receive and transmit data over the network media • In most modern network devices, network adapters contain the data transceiver
- Types of Network Adapters • For a desktop or tower PC, network adapter is likely to be a type of expansion board • Expansion boards connect to the system board through expansion slots • The circuit used by the system board to transmit data to the computer’s components is the computer’s bus
- Types of Network Adapters • PCMIA • Developed in early 1990s to provide standard interface for connecting any type of device to a portable computer • More commonly known as PC Cards • USB (universal serial bus) port • Standard external bus that can be used to connect multiple types of peripherals • A parallel port network adapter • Wireless network adapters • A variety of Ethernet network adapters
File Servers (Server Hardware) - Server software is that portion of the network operating system that "serves" a computer's resources to other network users.This software accepts incoming requests from network users and gives back files and other resources.By using drive letters A to Z users are able to access the file server’s hard drive as if it was one of their own local hard drivesApplication programs do the same. The network operating system takes care of routing traffic across the network to the proper file server hard disk and back.
File Servers (Hardware) - Disk capacity is an important factor.LANs always grow, so expandability is important. The file server should be able to sit more disk drives as needed.A file server (and a NOS) should permit you to add storage beyond any practical limit you can foresee. Disk arrays, which are composed of multiple drives and controllers, will provide fault tolerance but won't necessarily improve performance.
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