Your SlideShare is downloading. ×
  • Like
1 hardware fundamentals
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×

Now you can save presentations on your phone or tablet

Available for both IPhone and Android

Text the download link to your phone

Standard text messaging rates apply
Published

ch1

ch1

Published in Technology
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
    Be the first to like this
No Downloads

Views

Total Views
431
On SlideShare
0
From Embeds
0
Number of Embeds
0

Actions

Shares
Downloads
13
Comments
0
Likes
0

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1.  PC Repair and Troubleshooting
  • 2.  Hardware Software
  • 3.  Motherboard Power Supply Drives IO Devices Communication Devices Storage Devices
  • 4.  CPU - performs most of the calculations which enable a computer to function Heat Sink and Fan – cools the CPU RAM - stores resident part of the current running OS and all running processes BIOS o Boot firmware • Fixed / ussually small programs o Power Management Chipset - provides the supporting interfaces between the CPU and the various buses and external components. This chipset determines, to an extent, the features and capabilities of the motherboard. Internal Busses - connect the CPU to various internal components and to expansion cards for graphics and sound o PCI o SATA o ATA External Busses Controllers - support ports for external peripherals. o USB o IEEE 1394 interface - serial bus interface standard for high-speed communications and isochronous real-time data transfer, frequently used by personal computers, as well as in digital audio, digital video, automotive, and aeronautics applications. o Small Computer System Interconnect - set of standards for physically connecting and transferring data between computers and peripheral devices
  • 5.  converts alternating current (AC) electric power to low- voltage DC power for the internal components of the computer
  • 6.  CD / DVD / HD DVD / Blu Ray Floppy HDD USB Flash Tape
  • 7.  Keyboard Mouse Monitor Webcam Microphone Speaker Headset Printer Scanner
  • 8.  Primary Secondary Tertiary o Disks • Magneto optic disks • Optical disks • WORM o Tapes o USB Flash o External HDD
  • 9.  Repeater NIC Modem Hub Bridge Switch Router
  • 10. HUB BRIDGE SWITCH ROUTER Physical Layer Data Link Layer Data Link Layer Network Layer Bus Backbone MAC Address MAC Address IP AddressTransmits to all ports Transmits only if on Transmits to a Transmits to a the other side designated host designated hostDon’t analyse traffic Allow/Disallow traffic Manages traffic Avoids traffic 1 Collision & Every segment has a Every port has Separates Broadcast Broadcast Domain collision domain and Collision Domain and Domain Broadcast domain as a Broadcast Domain as whole a whole Same Subnet Same Subnet Same Subnet Different Subnets used on small used to connect large networks use most common home networks where the different network switches rather than use for routers is toamount of data going segments hubs to connect share a broadbandacross the network is computers within the internet connection. never very high same subnet Creates a network Connects Network Connects Network Connects Network segment Segments Segments