1. Introduction To Technology
Education
Final Exam Review

2. Technology:
Created by humans to: - extend human abilities - satisfy our wants & needs - make our lives easier
Tradeoff:
Compromise in which you give up something in order to gain something else
Process:
Steps that lead to a result
System:
A group of parts that work together in an organized way to complete a task

3. Prototype:
A working model of a new product or new version of an existing product
Patent:
Legal document that prevents inventors from having their ideas stolen
Who holds more patents than any other inventor?
Thomas Edison

4. 3 Ways to Classify Technology
Obsolete:
No longer in use or no longer useful
- VCRs
Current:
Most recent or up to date
- DVDs & Blu-ray
Emerging:
New developments to gain an advantage over competition
- Smart Watch

5. How long has there been Technology?
As long as there has been humans

6. Engineering Design Process
Step 1
Step 2
Step 3
Brainstorm & list
Identify the need or problem
Research the need or problem
Develop possible solution(s)
What is the current state of the issue and current solutions?
Step 4
Which solutions best solve original problem?
Step 8
Modify solution based on info from presentation & tests
Select best possible solution(s)
Redesign (if necessary)
Does it work? How do you know?
Step 7
Step 6
Step 5
Model solution in 2 or 3 dimensions
Construct a prototype
Test & evaluate solution(s)
Communicate the solution(s)
Make an engineering presentation that demonstrates how solution solves the original problem

7. Kitty Hawk, North Carolina
The Wright Brothers
First manned airplane flight
Kitty Hawk, North Carolina
December 17, 1903

8. Forces on an Airplane Weight Thrust:
Force created by the engines that move the plane through the air
Drag:
Force that opposes (tries to stop) the plane’s motion through the air
Drag
Lift
Thrust
Lift:
Force that directly opposes the weight of a plane & holds the plane in the air
Weight:
Force caused by the gravitational attraction of the Earth on the plane

9. Computer scientist that created the COBOL programming language
Grace Hopper
Computer scientist that created the COBOL programming language

10. Components of a Communication System
Source
Where the information begins Where the signal is sent
Encoder
Changes the information (message) into code so it can be sent (transmitted)
Transmitter
Sends the encoded message over a channel
Channel
Channel:
The medium or link through which a signal is sent from the transmitter to the receiver Examples: wire cables, fiber-optic cables, wireless wave communication
Receiver
Takes in the encoded message sent through the channel by the transmitter
Decoder
Translates the encoded message into useful information so that it can be understood

11. Jack Dorsey
Created Twitter in 2006

12. Made the first Cell Phone call on April 3, 1973 in New York City
Martin Cooper
Made the first Cell Phone call on April 3, 1973 in New York City

13. Computer scientist who created the
Tim Berners-Lee
Computer scientist who created the
World Wide Web in 1991

14. House Construction Foundation
The part of the building that rests on the ground and supports the upper structure

15. If you want to remove a wall in a house you must make sure that it is not a WEIGHT BEARING wall

16. Flooring
Usually the last to be completed so that it will not be damaged while other work is being done 16

17. Types of Bridges Types of Bridges Cantilever Bridge Beam Bridge
Arch Bridge
Drawbridge
Cable Stayed Bridge
Truss Bridge
Suspension Bridge

18. Forces Upon Bridges
These FORCES must be considered when building bridges
Compression
A force that pushes
Tension
A force that pulls
Torsion
A force that twists

19. Cantilever Bridge (using trusses)
Braga Bridge
Cantilever Bridge (using trusses)

20. Henry Ford’s 4 Main Principles of Mass Production
1) Reduction of Wasted Effort:
Henry Ford’s goal was to have his cars produced by workers without wasting time & effort
2) Interchangeable Parts:
Ford’s idea was to reduce cost by making the individual pieces of the car the same every time
3) Continuous Flow:
Car was constantly moving through assembly stations while the workers stayed in one place
4) Division of Labor:
Workers were specialized & focused on one task when building car

21. Comparison of Custom Manufacturing & Mass Production
Usually made in limited numbers
Same item produced many times
Made exactly as the person it is being made for wants it
Not made exactly how a person wants it
Made from start to finish by same worker (or small group of workers)
Workers only work on one part of the product
Worker(s) is/are usually a skilled craftsmen
Product is often machine made
Quality Control:
Makes sure the product meets the appropriate standards when being produced

22. Universal System Model of Technology
Input
Process
Output
Goal:
What you want the system to do
Resources: (7)
The result that comes out of the system
The steps that lead to a result
People, tools & machines, information, time, capital, energy, materials
Comparing the result to the original goal; adjustments are made to the inputs and/or processes
Feedback:

23. First Lunar Landing: July 20, 1969
Neil Armstrong, Michael Collins & Buzz Aldrin
First Lunar Landing: July 20, 1969