IB Design Technology Topic A3.3.2 Input–process–output Systems Revision Notes (HL)

IB Design Technology Topic A3.3.2 Input–process–output Systems Revision Notes (HL) | RevisionDojo

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Every Mechanical System Is Input, Process, Output

Definition

Mechanical System

A set of physical components that convert input force and motion into a desired output.

Any mechanical system, however complicated, can be broken into three parts:
1. Input: the energy, force or data that goes into the system.
2. Process: the transformation that turns the input into something useful.
3. Output: the result the system was built to produce.
The power of the model is that it lets you analyse a machine you have never seen before by asking only three questions.

Note

This model is not limited to mechanical systems.
It applies just as well to digital, biological and organisational systems.

Inputs: What Goes In

Energy Sources
1. Electrical: powers motors and actuators.
2. Mechanical: human force, or the pull of gravity.
3. Hydraulic or pneumatic: pressure from a fluid or from air.
Sensors and Data
1. Temperature sensors: trigger a cooling system.
2. Pressure sensors: regulate a hydraulic system.

Example

In a car engine, the input is fuel (chemical energy) and air (oxygen).
They must be mixed in a precise ratio, so the input is a specification, not just a substance.

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Definition

Paywall

(on a website) an arrangement whereby access is restricted to users who have paid to subscribe to the site.

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Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Duis aute irure dolor in reprehenderit

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Note

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam quis nostrud exercitation.

Excepteur sint occaecat cupidatat non proident

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Tip

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

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Every Mechanical System Is Input, Process, Output

Definition

Mechanical System

A set of physical components that convert input force and motion into a desired output.

Any mechanical system, however complicated, can be broken into three parts:
1. Input: the energy, force or data that goes into the system.
2. Process: the transformation that turns the input into something useful.
3. Output: the result the system was built to produce.
The power of the model is that it lets you analyse a machine you have never seen before by asking only three questions.

Note

This model is not limited to mechanical systems.
It applies just as well to digital, biological and organisational systems.

Inputs: What Goes In

Energy Sources
1. Electrical: powers motors and actuators.
2. Mechanical: human force, or the pull of gravity.
3. Hydraulic or pneumatic: pressure from a fluid or from air.
Sensors and Data
1. Temperature sensors: trigger a cooling system.
2. Pressure sensors: regulate a hydraulic system.

Example

In a car engine, the input is fuel (chemical energy) and air (oxygen).
They must be mixed in a precise ratio, so the input is a specification, not just a substance.

Definition

Paywall

(on a website) an arrangement whereby access is restricted to users who have paid to subscribe to the site.

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Note

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam quis nostrud exercitation.

Excepteur sint occaecat cupidatat non proident

Tip

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

A. Design in theory8 subtopics

B. Design in practice8 subtopics

C. Design in context8 subtopics

IB Design Technology Topic A3.3.2: Input–process–output Systems Notes

A. Design in theory8 subtopics

B. Design in practice8 subtopics

C. Design in context8 subtopics

Every Mechanical System Is Input, Process, Output

Inputs: What Goes In

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account

Every Mechanical System Is Input, Process, Output

Inputs: What Goes In

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account