Introduction To Computing And Programming In Python A Multimedia Approach 4th Edition Mark J. Guzdial, Barbara Ericson - Solutions

As we said in the chapter, computer science is about people. Start your exploration of computer science by exploring the people who are computer scientists and influence computer science. As you do, findWeb sites that you believe are credible for your information, and include the URL in your
How can you encode a floating-point number in terms of bytes? Do a search on theWeb for “floating point.”You will find that there are different encodings of floating point numbers. Take a common one like the IEEE Floating Point Standard as an example. Assuming single precision, what is the
One of the powerful ideas in computer science is that encodings can be layered. Most of the encodings we’ve talked about so far (e.g., pixels in a picture, characters, floating point numbers) are based on binary. XML is a way of encoding information in text, which is in turn encoded in binary.
MicrosoftWord used to use an encoding of a word-processing document called “DOC.” Most recent versions of MicrosoftWord use a different encoding called “DOCX.” What’s the difference between them?
One bit can represent 0 or 1.With two bits you have four possible combinations 00, 01, 10, and 11. How many different combinations can you make with four bits or eight bits (one byte)? Each combination can be used to represent a binary number. How many numbers can you represent with 2 bytes (16
Consider the representation for pictures described in Section 1.4, where each dot (pixel) in the picture is represented by three bytes, for the red, green, and blue components of the color at that dot. How many bytes does it take to represent a 640 by 480 picture, a common picture size on theWeb?
Text characters are encoded in different ways. The bottom level is always binary in bytes, but a different binary pattern can be used to represent different characters. Two of these encodings are ASCII and Unicode. See if you can doWeb searches on ASCII and Unicode. What’s the difference between
The 2013 Nobel Prize in Chemistry was in some sense a Nobel Prize given for work in computer science. What was the role of computers in that Nobel Prize?
Every profession uses computers today. Use aWeb browser and a search engine like Google to find sites that relate your field of study with computer science or computing or computation. For example, search for “biology computer science” or “management computing.”

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