Mr. David Quakenbush Presentation
Multimedia – Mrs. North
application of multimedia and data analysis in the work world.
Algorithms – Birthday example
Which algorithm requires fewer questions? – speed for computer applications
° N(N-1) / 2 - formula used for adding numbers from 1 to a Number, N
When is the quadratic formula more efficient?
When is the linear equation more efficient?
What does Excel create? Rows and Columns
In a data base table each row must have unique data – unique part is called a KEY
° Is a name a good idea for a KEY?
° Is a social security number a good idea for a KEY?
° Is a phone number a good idea for a KEY?
° What can be used instead of taking up space for a city and state?
o Tables need to be linked – a zip code can be a key
Sample Data Base – Harris County Appraisal District : http://www.hcad.org/
· Check value of your house, neighbors, WHS staff ….
Computer Scientist looks for fastest way to solve a problem.
Computer Scientist Careers:
1) Web Site Designer
° Web pages for Martha Stewart and a Rap Artist –
Ø Know your audience
Ø What is different for each web page?
° Content Data / Organization / Design http://teachertech.rice.edu/Participants/knorth/TS/rulesdpwp.htm
° How get paid when people go to a web site?
Ø Stock Sales
3) Business Application
4) Computer Engineer
° Robotics – combines modeling and engineering.
Languages of computers
= Lower level languages: - fast and efficient with memory, slow to write
o Assembly – bits, bytes
o Machine Language 0&1s
= Higher Level Languages
o Reuse code, as code is expensive.
= Applications written in a high level language