Why do Computers Use Binary?

Three things that I learned is that binary is a system for representing numbers using only the digits 1 and 0. Also I learned that computers have a computer jack that can make you listen to music on your phone. Analog Signal is a signal that's proportional to the value it presents. I still don't understand how the sound from the computer goes to the headphones and how numbers would make the sound go threw. I would like to know more about how the sound can get louder.

Eliza

Eliza Post: In some ways I did find Eliza human like but in some ways I didn't also because she would always say explain to me more or tell me more. To try to make her more human I would try to have a conversation with her so she could actually talk to me. I wouldn't expect a lot of emotion like word from a computer because that is another step for having a conversation with a computer. I believe that there will be even more computer like stuff and more advanced.

Google Boys

The way google transformed a 2 man operation into a profitable large corporation is they put adds on whatever you would search

One challenge they faced will creating google was to make the search time go down meaning to search faster. another challenge was resourcing and funding.

The key thing they need to do to stay ahead was to have the best search result because some search engines like yahoo doesn't give the correct information

Google finds there information faster from taking other sites and putting them in the best search result

African Cornrows

African Cornrows

• Cornrows use 4 geometric concepts: Translation, Rotation, Reflection, and Dilation
• Cornrows date back to 500 B.C. 
• Cornrow hairstyles in Africa also cover a wide social terrain: religion, kinship, status, age, ethnicity, and other attributes of identity can all be expressed in hairstyle.
•  Mathematics is also a traditional part of African hairstyles.
• The braid patterns were commonly based on African tradition and styles.
•  Madame C.J. Walker invented a system for straightening hair without the damage caused by other methods. She became the first black millionaire, and donated thousands of dollars to the NAACP and similar groups. 
• “Many West African hair styles are worn by Negro women in the United States, including this one—“cornrows.”  The hair is greased, combed, and tightly plaited.
• As the Afro began to wane in the 1970s, cornrows were on the rise.
• In the 1990s hip-hop artists from Ludacris to Lil’ Bow Wow could be seen with cornrows, and stylists continued to develop new innovations in cornrow braiding, best known from celebrity styles like those of basketball star Allen Iverson.