By Preiss B.R.

An object-oriented studying framework for growing sturdy software program design.Bruno Preiss provides readers with a contemporary, object-oriented standpoint for information constructions and algorithms, basically exhibiting tips to use polymorphism and inheritance, and together with fragments from operating and verified courses.

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That is, it should be as easy as possible to express your problem-solving thoughts in the mechanisms provided by the programming language. r Having spent all your time learning this language, it should be easy to apply it to problems you will encounter. ). org/wiki/Alphabetical list of programming languages 12 CHAPTER 0 • THE STUDY OF COMPUTER SCIENCE r The programming language you use should have broad support across many disciplines. That is, the language should be embraced by practitioners from many fields (arts to sciences, as they say), and useful packages, collections of support programs, should be available to many different types of users.

To address this problem, a universal encoding named Unicode was first defined in 1991 and can handle over 1 million different characters. One implementation of Unicode is UTF-8, which is popular because it is backward compatible to the ASCII encoding that dominated the first 30 years of computing. Currently over half the pages on the World Wide Web use UTF-8. It is the default character representation for Python 3. For those reasons this text will use UTF-8. 3 has part of the UTF-8 encoding showing some English characters, some symbols, and some control characters.

Assume that num1 and num2 represent numbers that are stored on the disk and that the result theSum will also be stored on the disk. Assume that the instruction itself, theSum = num1 + num2, also resides on the disk. Here is how it works: 1 Fetch Instruction: When the processor is ready to process an instruction, it fetches the instruction from memory. If the instruction is not in memory but on the disk, the memory must first fetch it from the disk. In this way, the instruction theSum = num1 + num2 will move from the disk through memory to the processor.

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