Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.
-
Upload
hollie-jennings -
Category
Documents
-
view
213 -
download
0
Transcript of Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.
![Page 1: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/1.jpg)
Macquarie Fields College of TAFE
Version 2 – 13 March 20005 - HARDWARE
5
![Page 2: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/2.jpg)
Network Servers
When printers, modems, and hard disk drives are connected into a network, additional hardware, called network servers, is required to allow these
nodes to be shared by all the microcomputers on the network.
There are four basic kinds of servers.
Macquarie Fields College of TAFE
![Page 3: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/3.jpg)
Network Servers• Printer Servers
Allow all computers on the network to use the same printer
• File Servers
Allow all computers on the network to use the same hard disk drive
Macquarie Fields College of TAFE
![Page 4: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/4.jpg)
Network Servers• Routing Servers
Connect two or more networks with the same architecture.
• Gateway Servers
Connect two or more different types of networks. These gateways simplify the network and reduce network expenses.
Macquarie Fields College of TAFE
![Page 5: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/5.jpg)
Network Components
• Two or more computers
• Cabling
• Connectors
• Terminators
• Network Operating System (NOS)
• Network Interface Card (NIC)
Macquarie Fields College of TAFE
![Page 6: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/6.jpg)
• Servers
–File
• Mainframes
• Routers
–Frame Relays
–Gateways
Macquarie Fields College of TAFE
Network Components
![Page 7: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/7.jpg)
Network Advantages
• Share Information (files)
• Share Resources (printers, programs)
• Security
Macquarie Fields College of TAFE
![Page 8: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/8.jpg)
Network Disadvantages
• Initial Cost of Hardware/Software
• Implementation Costs
• Network Complexity (training, crashes)
• Control (access, viruses)
• Performance
Macquarie Fields College of TAFE
![Page 9: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/9.jpg)
• Training
• Back-ups
• Access/Passwords
• Maintaining
• Configuring
• Installing
Network AdministratorSystems Administrator
Network Manager
Macquarie Fields College of TAFE
![Page 10: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/10.jpg)
RAM & ROM• RAM (Random Access Memory)
–Volatile Memory
• ROM (Read Only Memory)
–Non-volatile Memory
– Imprinted into chip by manufacturer
–Required by the CPU to enable it to handle data
–Can be read and used but not altered
Macquarie Fields College of TAFE
![Page 11: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/11.jpg)
Disks
• Scandisk
• Defrag (Defragmentation)
• Partitioning
Macquarie Fields College of TAFE
![Page 12: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/12.jpg)
![Page 13: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/13.jpg)
Care & Maintenance
• Floppy Disks
• Fixed Disks
• VDU
• System Unit Box
• Keyboard
• Mouse
Macquarie Fields College of TAFE
![Page 14: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/14.jpg)
Care & Maintenance
• Speakers
• Printers
• Cables & Leads
• Modems
• External CD-ROMs
• Scanner
• Tape Devices
Macquarie Fields College of TAFE
![Page 15: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/15.jpg)
![Page 16: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/16.jpg)
Trouble Shooting
Trouble Shooting involves correctly identifying, repairing and maintaining computer equipment
Macquarie Fields College of TAFE
![Page 17: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/17.jpg)
Trouble Shooting
• Main Problem Areas
• Electronic/Electrical Failures
• Hardware/Mechanical (printer jam/broken cable)
• Software (operator error)
• Fault Logs
Macquarie Fields College of TAFE
![Page 18: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/18.jpg)
Trouble Shooting
• Floppy Disks
• Fixed Disks
• VDU
• System Unit Box
• Keyboard
• Mouse
• Speakers
Macquarie Fields College of TAFE
![Page 19: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/19.jpg)
Trouble Shooting
• Printers
• Cables & Leads
• Modems
• CD-ROMs
• Scanners
• Tape Devices
Macquarie Fields College of TAFE
![Page 20: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/20.jpg)
Occupational Health
• Take rest periods every 1 hour
• Do regular exercises
• Position Screen away from glare
• Position chair at the right height
Macquarie Fields College of TAFE
![Page 21: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/21.jpg)
Safety
• Ensure power is turned off and pulled out of the Wall Socket when working with the hardware components
• Turn computer off ASAP if unusual noises or smells are present
• Try to save your work before powering down
Macquarie Fields College of TAFE
![Page 22: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/22.jpg)
Safety
• Keep backups
• Use
–Anti-static straps
–Surge Protector
–Spike Protector
• Read Manuals
• Remain calm and logical
Macquarie Fields College of TAFE
![Page 23: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/23.jpg)
Client Requirements
• Client Needs
• Alternative Solutions
• Appropriate Solutions
• Document Solutions
• Purchasing Guidelines
Macquarie Fields College of TAFE
![Page 24: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/24.jpg)
Documentation
• Hardware Logs
• Software Logs
• Registered Software
• Stock take of Installed Software
• Inventory of Consumables and Parts
• Accessing and recording stock from the store
• Maintain a library of manuals
Macquarie Fields College of TAFE
![Page 25: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/25.jpg)
Network Cabling
Three types of wires or cables are used to connect computers in a local area network:
• Twisted-pair wires
• Coaxial cables
• Fiber-optic cables
Macquarie Fields College of TAFE
![Page 26: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/26.jpg)
Network Cabling
1. Twisted-pair wires
• Like telephone wires
• Least expensive way to connect computers
• Relatively slow speed
Macquarie Fields College of TAFE
![Page 27: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/27.jpg)
Network Cabling
2. Coaxial Cables
• Cables are layered• Inner wire is surrounded by an
insulating material• Braided wire shields the inner wire
from any noise or other signals• Can transmit data much faster than
twisted-pair wires
Macquarie Fields College of TAFE
![Page 28: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/28.jpg)
Network Cabling
3. Fiber-optic Cables
• Made of plastic or glass fibers
• Digital data signals are used to modulate a light beam to convert it into pulses
• Fast and reliable, as well as small and light
Macquarie Fields College of TAFE
![Page 29: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/29.jpg)
Terminators
A device attached to the end-points of a bus network or daisy-chain. The
purpose of the terminator is to absorb signals so that they do not reflect back
down the line. Ethernet networks require a terminator at both ends of the bus, and SCSI chains require a single
terminator at the end of the chain.
Macquarie Fields College of TAFE
![Page 30: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/30.jpg)
Network Operating System (NOS)
An operating system that includes special functions for connecting
computers and devices into a local-area network (LAN). Some operating systems, such as UNIX and the Mac
OS, have networking functions built in.
Macquarie Fields College of TAFE
![Page 31: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/31.jpg)
Network Interface Card (NIC)
Often abbreviated as NIC, an expansion board you insert into a computer so the computer can be
connected to a network. Most NICs are designed for a particular type of
network, protocol, and media, although some can serve multiple networks.
Macquarie Fields College of TAFE
![Page 32: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/32.jpg)
Backups
• What is a backup?
• Where should backups be stored?
• Where should backups not be stored?
• How often should a backup be performed?
Macquarie Fields College of TAFE
![Page 33: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/33.jpg)
Grandfather, Father, Son Backups
Macquarie Fields College of TAFE
Monday Grandfather
Tuesday Father
Wednesday Son
Thursday Grandfather
Friday Father
Monday Son
Tuesday Grandfather
Set 1MondayTuesdayWednesdayThursdayFriday GrandfatherMondayTuesdayWednesdayThursdayFriday FatherMondayTuesdayWednesdayThursdayFriday SonMondayTuesdayWednesdayThursdayFriday Grandfather Grandfather
Set 3Set 2
![Page 34: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/34.jpg)
Types of backup media
• CD-ROM
• Diskette
• Tape Drive
• Tape Reel
• Zip Drive
Macquarie Fields College of TAFE
![Page 35: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/35.jpg)
Care of Floppy Disks• Do not bend
• Do not touch the magnetic disk as the oil on your fingers will leave an imprint and corrupt the disk
• Write on labels before placing on disk
• Do not leave near heat or in the car
• Do not place near a magnetic device such as the telephone
Macquarie Fields College of TAFE
![Page 36: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/36.jpg)
Care of Fixed Disks• Locate in a dust free
environment
• Do not move computer when running
• Scan disk regularly
• Virus check disk regularly
• Defrag disk regularly
• Delete unwanted files regularly
Macquarie Fields College of TAFE
![Page 37: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/37.jpg)
Care of VDU• Use an anti-static cleaning cloth
• Keep in a dust free environment
• Ensure a screen saver is active on your system so the monitor does not burn
Macquarie Fields College of TAFE
![Page 38: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/38.jpg)
Care of System Unit Box• Keep in a dust free environment
• Do not open the unit unnecessarily
• Do not move the unit when computer is on
• Do not smoke around the computer
• Clean dust around disk and CD drives with a cotton bud
Macquarie Fields College of TAFE
![Page 39: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/39.jpg)
Care of Keyboard• Keep keyboard covered when not in
use
• Do not eat around the computer as food particulars fall between the keys and corrupt contact between key and pressure pads
• Wipe keyboard over regularly to keep clean
Macquarie Fields College of TAFE
![Page 40: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/40.jpg)
Care of Mouse• Use mouse on a clean mouse pad
• Keep working environment dust free
• Clean mouse regularly – inside and outside
Macquarie Fields College of TAFE
![Page 41: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/41.jpg)
Viruses
• What is a virus?
• Where do viruses come from?
• Why are viruses created?
• How do viruses spread?
• How can you detect a virus?
Macquarie Fields College of TAFE
![Page 42: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/42.jpg)
My Printer’s not working!
9. Check RAM
Macquarie Fields College of TAFE
Power point is onPower board is onPrinter switch is onPrinter is online
Plugged into power pointPlugged into power boardPlugged into back of computerPlugged into back of printer
3. Check Drivers are installed
4. Check Drivers are allocated tocorrect printer
5. Check is paper is jammed
6. Check if correct printer is installed
7. Check if ink/cartridge needs replacing
8. Check Printer is plugged in
1. Check paper
2. Check Power
![Page 43: Macquarie Fields College of TAFE Version 2 – 13 March 2000 5 - HARDWARE 5.](https://reader036.fdocuments.us/reader036/viewer/2022062804/56649daa5503460f94a97d33/html5/thumbnails/43.jpg)
Network Interface Card (NIC)
Often abbreviated as NIC, an expansion board you insert into a computer so the computer can be
connected to a network. Most NICs are designed for a particular type of
network, protocol, and media, although some can serve multiple networks.
Macquarie Fields College of TAFE