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traffic lights

Name: Anonymous 2011-01-31 15:16

What programming language do traffic lights use ?

Name: DrRacket !BYmn6QVNCw 2011-01-31 15:22

Racket, obviously.

Name: Anonymous 2011-01-31 15:26

The system probably uses assembly or C.

Name: Doctor Racket !RACKET/.HY 2011-01-31 15:39

>>2
Don't impersonate me, please.

>>1
Probably what >>3 said.

Name: Anonymous 2011-01-31 16:06

why not COBOL

Name: Anonymous 2011-01-31 16:56

oh I've heard of em midgets cobol warrior

Name: Anonymous 2011-01-31 17:08

Relays. Microprocessors not involved.

Name: Anonymous 2011-01-31 17:38

The most complex traffic light system would use sensors, triggers, logic gates and relays. No programming at all.
Even taking into account an intersection with fifteen or twenty different converging roads, a logic equation would be devised rather easily.

Name: Anonymous 2011-01-31 17:46

FPGA.

Name: Anonymous 2011-01-31 18:34

>>9
Nobody actually uses FPGAs for anything other than prototyping. Also VHDL is superior.

Name: Anonymous 2011-01-31 18:42

Check my binary dubs.

Name: Anonymous 2011-01-31 19:46

>>1
Probably compiled C or assembly for some cheap microcontroller.
>>10
FPGAs are used when the design is going to change a lot and you plan on selling over 100000 chips (could be less, depends on model), ASIC's tend to cost millions to produce, but are a lot cheaper than FPGAs once you need a large enough number, FPGAs are a lot more expensive per unit, but are cheaper if you don't plan on selling more than a few dozen thousand items (or less).

Name: Anonymous 2011-02-03 5:45

Name: Anonymous 2011-02-04 14:50

Don't change these.
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