Homework Help: yr 8 design technology

Posted by Ashkin on Saturday, January 10, 2009 at 6:53am.

Systems and Control- inputs ,process and outputs

1) public address system - input ?
2)table lamp - process ?
3) street lamp - input ?
4)burgular alam - process?
5)doorbell-output-doorbell sounds (ding dong is this right?)
6)car windscreen - input-?
7)refrigerater- output- cold air ( is this right ?)
8)calculator- input?
9)kitchen timer - process?
10)automatic night light - output - light comes on at set time ( is this right ?)
thanks for you help

yr 8 design technology - bobpursley, Saturday, January 10, 2009 at 7:38am
I will do a couple. You need to do your own thinking.

1)public address system
input:voice message
process: amplification, and distribution to speakers
output: loud message at selected sites.

7) refrigerator: Input: temperature sensor
Process: When internal temp is above preset temp, turn on refergerator compressor
Output: Cold box with temp below a preset.

10) auto night light.
Input: light sensor sensiing light
Process: if ambient light is below threshold, turn on light.
Output: light on or off
re bobpursley-yr 8 design technology - Ashkin, Saturday, January 10, 2009 at 9:36am
thanks thats great! they were the main ones i was stuck on.thanks again
yr 8 design technology - Moaza, Monday, April 23, 2012 at 9:21am
ok what is the burglar system ?

Answer this Question

Related Questions

Technology - please check these for me: 1. One of the possible drawbacks of ...
science - input and output are good words to use when discussing systems because...
SCIENCE!! - why are input and output good words to use when dissucssing systems...
Math input and output - Rule :5n + 2 Input,n 1 2 3 4 5 Process Output Input 1 ...
Technology~bobpursley - 25. Briefly explain the difference between product ...
physiology - Why do the control mechanisms have several intergation centers? ...
Algebra - What is the rule in equation form of an input/output table if the ...
Technology - please check these for me: 5. Which type of control ensures that ...
Technology - 21. You have learned that there are seven inputs common to all ...
System Analyst and Design - Sky-High Internet Services Situation: Sky-High ...

For Further Reading

First Name:
School Subject:
Answer: