Schaum’s Outline Series OF Principles of Computer Science phần 8 ppt

... any rows ALL True if all of a set of comparisons are true ANY True if any one of a set of comparisons is true SOME True if some of a set of comparisons is ture Table 8- 1 Line Item Consignment_Seller Write ... secret, of course.). Since 1 981 , software has been patentable if the software is part of an invention of a new machine or process. A key to making the distinction...

Ngày tải lên: 12/08/2014, 21:22

... most modern computers. 4 INTRODUCTION TO COMPUTER SCIENCE [CHAP. 1 SCHAUM’S OUTLINE OF Principles of COMPUTER SCIENCE CARL REYNOLDS Department of Computer Science Rochester Institute of Technology PAUL ... Jones (http://www.cs.uiowa.edu/~jones/cards/history.html). SCHAUM’S OUTLINE OF Principles of COMPUTER SCIENCE CHAPTER 1 Introduction to Computer S...

Ngày tải lên: 12/08/2014, 21:22

... but in computer science, because of the ubiquity of binary math, this is usually written as lg n, meaning logarithm to the base 2 of n. The total running time T of the merge sort consists of the ... same value. COMPUTER WORD SIZE Each computer deals with a certain number of bits at a time. The early hobbyist computers manipulated 8 bits at a time, and so were called 8- b...

Ngày tải lên: 12/08/2014, 21:22

... cards: 55 82 1 3 7 9 4 7 81 2 1 4 3 3 2 81 3 3 2 3 1 1 82 4 7 9 9 9 9 82 5 6 9 8 8 5 This program starts by reserving an array of 1000 elements for real numbers. Then it reads the first line of input ... is a pattern of ones and zeros stored in a word of computer memory. By the way, a “word” of memory is the basic unit of storage for a computer. A 16-bit computer has a...

Ngày tải lên: 12/08/2014, 21:22

... as part of the state of each individual car (part of the state of each instance). On the other hand, we would maintain a count of the total number of Automobiles as part of the state of the class ... ((cdr n)), a list of one element (the element is another list, the cdr of the list of parameters), and the second line of cond would return a list instead of a number. O...

Ngày tải lên: 12/08/2014, 21:22

... problem occupied a great deal of computer science research during the 1960s, 1970s, and 1 980 s. Several solutions have been developed. Dekker offered the first software solution to the problem ... operating system of a computer is a program, often called the “kernel,” which is always running on the computer, and which governs the execution of all the other programs that run on t...

Ngày tải lên: 12/08/2014, 21:22

... and the computer uses a page table and virtual memory, how long does it take to read a word of program memory? 6.12 If we add a TLB to the computer in the previous question, and 80 percent of the ... a logical page number. Since the number of frames of physical memory is likely to be much smaller than the number of pages of logical memory in a 64-bit computer (with 4K pages...

Ngày tải lên: 12/08/2014, 21:22

... relation consists of rows, each of which represents an instance of the entity type, and of columns, each of which represents one of the attributes of the entity type. Each row of a relation is ... row more often than tuple, but a tuple is a row of a table, an instance of a relation, an instance of an entity type. Each tuple consists of the values of the attributes fo...

Ngày tải lên: 12/08/2014, 21:22

... 11100101? 229 3.3 What are the units (values) of the first 3 columns in a base -8 (octal) number? 64s 8s units 8 2 8 1 8 0 3.4 What is the base-2 value of the base -8 (octal) number 377? 11111111 3.5 Convert ... theirs, and to their peace of mind, regardless of the quality of their locks. Software professionals should never condone the spreading of viruses, Trojan horses,...

Ngày tải lên: 12/08/2014, 21:22

... 41 Church-Turing Thesis, 28 class, object oriented programming, 78. See also inheritance clients, 98, 132–133 Cobol, 46 compiler, 10, 47 -8 computer science, definition, 1 computer virus, 175–176 computer word data ... to professional work: The US Can-Spam Act of 2004 prohibits the practice of spamming. The name of the act stands for Controlling the Assault of Non-Solicited...

Ngày tải lên: 12/08/2014, 21:22