2. Built-in Data Types

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• To associate a name with a value, we use an assignment:variable = value• Examples:granddaughter = 'Jessica'age = 10• Assignment defines the relationship (binding) between avariable and the value to which it refers• Without a definition, use of a name is considered anerror• A new assignment changes or redefines the reference36
• The print statement distinguishes strings (text)from variable names because the former appear inquotes• If you want to print several different items, usecommas to separate the items• Example:37
Page 1 and 2: Department of Computer ScienceDr. J
Page 3 and 4: • Each bit is either 0 or 1, so i
Page 5 and 6: • Data such as sound (e.g., music
Page 7 and 8: • The symbol used to write a numb
Page 9 and 10: • Base 10 probably arose because
Page 11 and 12: • We are used to writing numbers
Page 13 and 14: • The algorithms you learned for
Page 15 and 16: • From another base to decimal is
Page 17 and 18: • Different kinds of numbers• P
Page 19: • For efficiency, Python uses a s
Page 22 and 23: • Idea is to trade accuracy for r
Page 24 and 25: • Python uses a storage scheme wi
Page 26 and 27: • Differences• Addition, subtra
Page 28 and 29: • For these operations, arithmeti
Page 30: • In math, we use superscripts to
Page 33 and 34: • Basics• Naming variables• A
Page 35: • The name of a variable must be
Page 39 and 40: • We often want to increase the v

2. Built-in Data Types

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