© 2008 Prentice-Hall, Inc. 1

Ports for peripheral devicesPorts for peripheral devicesTypes of ports w/ speeds (= transfer rates):Types of ports w/ speeds (= transfer rates):– Serial 115K bps, Serial 115K bps, – Parallel 500K bpsParallel 500K bps– USB USB 480M480M bps (2.0) bps (2.0)– USB USB 4800M bps 4800M bps (3.0)(3.0)– Ethernet 100M,1000M bpsEthernet 100M,1000M bps– Tele. modem 56K bpsTele. modem 56K bps– FireWire (or 1394) FireWire (or 1394)

400M bps400M bps, 800M bps, and, 800M bps, and3.2G bps (= 3.2G bps (= 3200M bps3200M bps))

– Audio ports Audio ports – VGA (monitor), DVI, s-videoVGA (monitor), DVI, s-video– HDMIHDMI

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Expansion cards slotted into motherboard

Notice in the picture the 2 expansion cards have ports on them

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Types of Ports• Serial port

– Transfers data one bit at a time– Speed: very slow …– Legacy (ex mouse)

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Types of Ports• Parallel

– Transfers eight bits of data simultaneously (transmits “in parallel”)

– Speed: 500 K bps – (faster that serial– Legacy (ex printer)

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Types of Ports• Universal serial bus (USB)

– Speeds: • USB 2.0: 480 M bps • USB 3.0: 4800 M bps (= 4.8 G

bps)• Competitive speeds to

Firewire port

USB Port

USB Connector

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Types of Ports• Ethernet

– Connects computers to networks, modems

– (newer speed:10,000 M bps)– Often listed on computer spec

sheet as: 10/100/1000 M bps Fast Ethernet LAN

Ethernet Port

Ethernet jack (RJ-45 connector)

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Types of Ports• FireWire (or 1394)

– Max speeds: • 400 M bps • 800 M bps • 3.2G bps (in develop.)

– Digital cameras, etc– Comes in several

different configs. Know the 5-sided hexagon one!

FireWire Port

FireWire Connector

Ports for multimedia and monitor• VGA – to connect CRT

and older LCD monitors• DVI /S-video– to newer

LCD monitors, TVs (DVI is video only, not audio)

• HDMI – newest way to connect to TV, home theatre equipmt (Hi Def Multimedia Interface, audio and video)

• S= Super; DVI=Digital video interface

HDMI

VGA S-video DVI

DVI VGA

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Types of Wireless Ports on Test 2• Bluetooth• Radio waves

• IrDA– Uses infrared light– Direct line of sight