Tuesday, November 9, 2010

STORING PICTURES

Computers can only see numbers, however computers are also able to store pictures. Computers do this by assigning a spefic number to an image. In other words, the computer links a number to an image. When an image is requested, the computer looks for the number associated to the image.

Wednesday, October 20, 2010

HANDSHAKE PROBLEM

There are 20 people in a room. Every person must share hands with every other person in the room. How many handshakes have taken place?
Algorithm: n
1st Person: n-1
2nd Person: n-2
3rd Person: n-3

(n-1)+(n-2)+(n-3)+(n-4)+(n-5)+.....+(n-19)= n(n-1)
                                                                              2
 


Tuesday, October 19, 2010

SOLVING A PROBLEM

The steps to solve a problem include:
  1. Understand the problem
  2. Brainstorm/write down ideas
  3. Visual aids (charts, diagrams etc.) 
  4. Come up with a plan.....Synthesize a plan.....Execute plan
  5. Evaluate results

Friday, October 15, 2010

CHAT LINES

You can be sure that there is an actual person on the other end of the chat line when you get a response. You can also tell it is an actual person when their response is relevant and addresses a spefic question/topic. Another way of determining if the is someone by the way the adress you .

Thursday, October 14, 2010

COMPUTER PROGRAM


A COMPUTER PROGRAM (SOFTWARE) IS A SET OF ORDERED INSTUCTIONS THAT ALLOWS THE COMPUTER TIO CARRY OUT CERTAIN TASKS. THE PROGRAM IS PREPARED PRIOR TO INSTALLING IT BECAUSE THE ACTIONS ARE PREDETERMINED. PROGRAMS WORK IN MANY MACHINES AND IN DIFFERENT LANGUAGES. THE ORDER OF INSTRUCTIONS IS USUALLY IN SETS OF LETTERS OR NUMBERS. IN OTHER WORDS, THEY ARE IN CODES.  EACH UNIQUE SEQUENCE REPRESENTS A SPECIFIC THING. EVERY SEQUENCE IN VERY SPECIFIC.

Wednesday, October 13, 2010

GOOGLE & STUMBLE

Google and Stumble are alike because they both give you resutls for something that you are searchign for. They are different becuase Google tends to focus on only one topic that you request. On the contrary, with Stumble, you can search various topics at the same time. However, with stumble, you never know where it is going to take you. Google is more for specific searches ans Tumble is more for fun and just to look for stuff where you normally would not expect to.   

Wednesday, October 6, 2010

CRITERIA FOR CREDIBLE WEB SITES

Some web sites may present more evident signs of false information. However, some may be more subtle. Now that anyone has access to the world wide web, then it is crucial that you evaluate a website for its reliability.  A criteria to evaluate the authenticity and credibility of the information in a web site can include:
  1. DOMAIN:
    • .edu
    • .com
    • .gov
    • .net
    • .org  **you don't know what organization it is**
  2. The author(s) and credentials
  3. Sources mentioned that were used to compile information (reference list)
  4. Logos/ Distracting Graphics
  5. Well written
  6. Up to date
  7. Information is clear and relevant 
  8. Easily accessible
  9. Spelling/ Grammar errors
  10. Is it bias?