Schaum’s Outline Series OF Principles of Computer Science phần 3 ppt

... 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 word size of 16 bits, or ... *, 6 ) J, ID, AV 6 FORMAT( I6, 3X, 'SUBJECT ', I6, 3X, 'AV= ', F9.2 ) STOP END Example input cards: 55 821 3 7 9 4 7 812 1 4 3 3 2 8 13 3 2 3 1 1 824 7 9 9...

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 ... 1 -3 Jacquard Loom Cards, photograph by Doug Jones (http://www.cs.uiowa.edu/~jones/cards/history.html). SCHAUM’S OUTLINE OF Principles of COMPUTER SC...

Ngày tải lên: 12/08/2014, 21:22

... with the value of R For example, to find the GCD of 37 2 and 84, which we will show as: GCD (37 2, 84) Find GCD(84, 36 ) because 37 2/84 —> remainder 36 Find GCD (36 , 12) because 84 /36 —> remainder ... binary value of 127 + 3, or 130 . After all this, the binary representation of 8.5 is: 01000001000010000000000000000000 34 COMPUTER ORGANIZATION [CHAP. 3 For instance...

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 ... term CHAP. 4] SOFTWARE 63 The state of an object is provided by variables. As the values of variables change, the state of the object changes. At any point in time, the val...

Ngày tải lên: 12/08/2014, 21:22

... 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 the computer. The ... bits in a computer “word” (most computers today regard 32 bits as a “word”) some number of positions left or right, or to compare the values of two words, or to complement the...

Ngày tải lên: 12/08/2014, 21:22

... the offset remains simply the address of the reference within the page/frame. For instance, if a 32 -bit system (addresses are 32 bits long) has a frame size of 4K, it means that 12 bits of the address ... 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...

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

... students major in computer science, there will be 30 0 lines containing the words Computer Science . Such a report is probably not what one had in mind. Probably one is interested in a list of the different ... subquery returns 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 compari...

Ngày tải lên: 12/08/2014, 21:22

... pertaining to professional work. 3. 3 Acknowledge and support proper and authorized uses of computing resources. CAN COMPUTERS KILL? In particular, can software kill? Can software maim? Can software inflict ... 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...

Ngày tải lên: 12/08/2014, 21:22

... science, definition, 1 computer virus, 175–176 computer word data representation in, 33 36 size, 32 33 , 39 computing history, 4–12 copyright, 1 73 174 CPU (Central Processing Unit), 7, 36 data definition ... of high performance. ANSWERS TO REVIEW QUESTIONS 2 13 This page intentionally left blank 219 Aiken, Howard, 9 algorithm, 2, 14 order of growth of (see order of grow...

Ngày tải lên: 12/08/2014, 21:22