Assignment 33 Encoding Images

1. An image is 800 by 500 pixels, and each pixel can be one of four colors. How much memory would it require?

     4 colors would mean its a 2 bit code:
     500 X 800  = 400,000 pixels
     2 X 400,000 = 800,000 bits
     800,000 / 8 =  100,000 bytes
     100 KBytes in memory

2. An image is 800 by 500 pixels, and each pixel can be one of four colors. How much storage space would it require?
     4 colors would mean its a 2 bit code:
     500 X 800  = 400,000 pixels
     2 X 400,000 = 800,000 bits
     800,000 / 8 =  100,000 bytes
     100 KBytes of storage


3. How many different colors could one represent using two, three and four bit codes?

     2 bits of code give the user 4
     3 bits of code give the user 8
     4 bits of code give the user 16

4. When you add one bit to a code, what happens to the number of possible colors?
     It doubles the number of combinations of colors.

Assignment 30 - Audio Recording

I have recorded an intro for what will soon be my website. The intro can be found at :

http://soundcloud.com/diatalevijohn/intro

Assignment 24 Encoding text

1. If you took a picture of your car, could you store that using the ISO 8859-1 character standard? Explain your answer.

No, the ISO 8859-1 character set is used for written plain language. An image file would need to be stored as an image file; .jpg.

2. Write the word Hello using the ISO 8859-1 character standard.

01001000 01100101 01101100 01101100 01101111

a. How many bits did it take?

40

b. How many bytes did it take?

5

c. Would it take more bytes in memory than in storage?

It would fill the same amount of space.


3. At 10 bits per second, how long would it take to transmit Hello from one computer to another?

4 seconds.


4. Which contains more information 100 random bits or 1,000 random bits? Explain your answer.

Neither, random bits contain no information.

Assignment 23 Image Processing

#1 Shorten the image.

  #2 Remove the last sentence. Zap

 #3 Remove the oarlocks.

Assignment 19 - Personal Drones for your iPhone

A French electronics company, Parrot, has developed drone planes that can be controlled by an iPhone or other smartphone type devices. This company is mainly focusing on the manufacturing of the drones and the software which creates a game like atmosphere. These drones are quadricopters, they have four separate fans that allow for maneuverable control. Along with the fans, an onboard Linux based computer uses multiple gyro sensors and a micro altimeter to maintain flight via the WiFi control device. Parrot has not released a price for their sales model but I'm guessing it will be pretty expensive. I chose this article because I thought it was interesting that a company would invest that much money into a such a high end toy. I would assume that in a few more years, this technology will reduce in price. This article would fit in the technology section of our class outline.

http://cis471.blogspot.com/2010/06/novel-application-drone-helicopter-with.html

Assignment 18

1. What is the title of the post you chose?
• "Soluto, a cool program/service, measures boot time. Solid state disk wins big"
2. What is its permalink URL?
• http://cis471.blogspot.com/2010/07/soluto-cool-programservice-measures.html
3. What tag(s) does it have?
• Benchmark, SSD, technology
4. Why did you choose it?
• I have read about the newer SSD drives in the past but I have not had the chance to upgrade my system with one. I do not know much about Benchmark tools but reading about Soluto makes me want to download it and try it out on my system.

http://cis471.blogspot.com/2010/07/soluto-cool-programservice-measures.html

IT Literacy Definition

 IT literacy: "IT literacy consists of the skills and concepts a student needs for success in school and after graduation as a professional and citizen."