Consider the following sequence of expressions: animals = { 'a': ['aardvark'], 'b': ['baboon'], 'c': ['coati']} animals['d'] = ['donkey'] animals['d'].append('dog') animals['d'].append('dingo') we want to write some simple procedures that work on dictionaries to return information. first, write a procedure, called how_many, which returns the sum of the number of values associated with a dictionary. for example: > > > print(how_many(animals)) 6

Creating "smart interfaces" in all sectors of industry, government, and the public arena is one of the fastest growing hct areas. these interfaces model, interpret, and analyze such human characteristics as speech, gesture, and vision. the field of biometrics, in which humans authenticate themselves to machines, is an area of considerable interest to hct practitioners. fingerprint scans are one of the most frequently used biometric options, and this article, biometric student identification: practical solutions for accountability & security in schools, makes a case for the implementation of fingerprint scans in schools. critique the article, and answer the following questions: according to the author, what are the main benefits of adopting fingerprint scans in schools for student identification? according to the author, what are the main drawbacks of adopting fingerprint scans in schools for student identification? do you agree with the author's assessment of the pl

What need most led to the creation of the advanced research projects agency network? darpa wanted scientists to be able to collaborate and share research easily. darpa wanted american and russian politicians to be able to communicate. darpa wanted astronauts to be able to contact nasa and the white house. darpa wanted factory owners to be able to coordinate supply chains.

In addition to the four primary computer operations, today's computers typically also perform functions.