I/O Ports. Keyboard & Mouse AT-style keyboard PC99 – Color Coding! Mouse (green) Keyboard (purple)

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Presentation transcript:

I/O Ports

Keyboard & Mouse

AT-style keyboard

PC99 – Color Coding! Mouse (green) Keyboard (purple)

USB

USB Versions ● USB 1.0 / 1.1 ● “Low Speed” at 1.5 Mbits/sec ● “Full Speed” at 12 Mbits/sec ● Real-time (“isochronous”) is available when using “Full Speed” ● USB 2.0 / 2.1 ● Supports “Original USB” (aka 1.0/1.1) speeds ● All devices must be backwards-compatible to 12Mbps ● Adds “High Speed” at 480 Mbits/sec

USB 1.1

Typical USB cables

USB Ports

Firewire

FireWire™ Versions ● IEEE 1394a ● A.K.A. Sony i.Link ● 400 Mbit/sec ● “FireWire” is an Apple trademark equivalent to IEEE 1394a ● IEEE 1394b ● 800 Mbit/sec ● All 1394b devices (host and peripheral) are backwards compatible with 1394a

FireWire 400 / IEEE 1394a ports

FireWire 800 / IEEE 1394b port

Typical FireWire cables FireWire 800

Video

13W3 Video ● Found in early workstations (Sun, Apollo, HP, etc.) until late 1990's ● Separate R, G, B coax lines ensured high signal quality

DB-15 / VGA ● Standard IBM PC VGA connector ● Requires heavy shielding for high resolutions ● Analog signals susceptible to interference

DVI (Digital Video Interface) ● Successor to VGA DB15 connector ● Can be analog or digital ● Approx 9 different types of DVI connector are NOT ALWAYS INTERCHANGEABLE!

HDMI ● Successor to DVI ● Can handle audio as well as video ● 100% digital interface

Audio

PC99 – color coding! Pink = microphone Green = audio out (line-level) Blue = audio in (line-level) Audio-out jack may also produce speaker-level voltage but if so, must be auto-detecting based on impedance. Unfortunately, auto-detection doesn't always work!

7.1 channel analog audio 1. Line Out 1 jack 2. Line Out 2 jack 3. Line Out 3 jack 4. Front Left 5. Front Right 6. Ground 7. Rear Left 8. Rear Right 9. Ground 10. Side Right 11. Center 12. Subwoofer 13. Ground 14. Side Left

Serial, Parallel, etc. “DB”-style jacks

DB9 ● Used for RS-232 (modems, mice) ● Monochrome video (IBM PC standard) ● Partial DB-9 (4 pins) sometimes used for FC-AL

DB25 ● RS-232 Serial ports (modems, terminals) ● Centronics (printers) ● SCSI-1 (early Apple, Atari, Amiga, etc.) ● Only usable at asynchronous speeds (5 MBytes/sec)

DB15 ● Two-row type ● AUI (ethernet) ● Three-row type ● VGA (video)

DB50 ● Used for SCSI-1 applications, synchronous protocol up to 10 MBytes/sec

SCSI

SCSI-1 ● Officially just “SCSI” ● DB25 ● DB50 ● Centronics-50 ● Up to 10MBytes/sec

SCSI-II ● Narrow (8-bit), up to 20 Mbytes/sec ● Wide (16-bit), up to 40 Mbytes/sec ● HD50 and HD68 connectors

SCSI-III ● Vast confusion of standards, ranging from 40 MBytes/sec to 640 Mbytes/sec ● Various high-density connectors, VHDCI is common for higher speeds

Other SCSI connectors...

Ethernet

AUI ● Original 10Mbit/sec ethernet connection

AAUI (Apple AUI) ● Remember the original embrace-and- extend people?

MII ● 100Mbit/sec version of AUI ● Found only on workstations from Sun, HP, etc. and certain routers (typically Cisco) ● Looks like SCSI-2 but isn't

GBIC ● Successor to MII, for Gigabit networks

SFP ● Small Form-factor Pluggable... for when GBICs are just too darn big.

XFP ● or, 10-gigabit SFP

WTF? ● Yup, it's still ethernet. ● See the two SFP GBICs at the back of the card? ● Turns out PCI slots are almost wide enough to fit a SFP GBIC, but not quite.

Typical ethernet connectors