list of computer software programs
Availability and reliability analysis of computer software systems considering maintenance and security issues
... for assessing software availability In the end, the impact of software security issues on software availability is covered 2.2.1 Software Maintenance and Software Availability Software maintenance ... (Pham, 2003) to nowadays when the quality of a software system is of main concern The quality of a software system is vital to the success of a software system Software quality analysis is a very active ... traditional ways of analyzing software quality often ignores the impact of environmental factors, such as software maintenance and software security issues Realizing the importance of software availability...
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Tài liệu Develop computer programs for simplifying sums that involve binomial coefficients: The Art of Computer Programming, Volume 1: Fundamental Algorithms pdf
... proof by generating functions, another of the popular tools used by the species Homo sapiens for the proof of identities before the computer era Next we’ll show what a computerized proof of the ... algorithms of the subject of computer proofs of identities Chapter describes the original algorithm of Sister Mary Celine Fasenmyer She developed, in her doctoral dissertation of 1945, the first computerizable ... Evolution of the province of human thought One of the major themes of the past century has been the growing replacement of human thought by computer programs Whole areas of business, scientific,...
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structure and interpretation of computer programs
... matter of this book involves us with three foci of phenomena: the human mind, collections of computer programs, and the computer Every computer program is a model, hatched in the mind, of a real ... smoothly they fit with other programs in the creation of still greater programs The programmer must seek both perfection of part and adequacy of collection In this book the use of ``program'' is focused ... stimulated to invent new methods of reducing the mass of function and detail to be fitted into large programs Unlike programs, computers must obey the laws of physics If they wish to perform...
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A computer system consists of hardware, system programs, and application programs figs 1
... Application programs System programs Operating system Machine language Microarchitecture Hardware Physical devices Fig 1-1 A computer system consists of hardware, system programs, and application programs ... Keyboard controller Floppy disk controller Hard disk controller Bus Fig 1-5 Some of the components of a simple personal computer Execute unit Fetch unit Fetch unit Decode unit Holding buffer Execute ... actual deadlock Root directory Students Robbert Matty Faculty Leo Prof.Brown Courses CS101 Papers CS105 Prof.Green Grants Prof.White Committees SOSP Files Fig 1-14 A file system for a university...
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A computer system consists of hardware, system programs, and application programs figs 2
... (a) Current process G A F D G A (b) Fig 2-41 Round-robin scheduling (a) The list of runnable processes (b) The list of runnable processes after B uses up its quantum B Queue headers Priority Runable ... full measure of devotion, that we here highly resolve that these dead shall not have died in vain that this nation, under God, shall have a new birth of freedom and that government of the people ... semaphore; int state[N]; semaphore mutex = 1; semaphore s[N]; /* number of philosophers */ /* number of i’s left neighbor */ /* number of i’s right neighbor */ /* philosopher is thinking */ /* philosopher...
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A computer system consists of hardware, system programs, and application programs figs 3
... R S T R S T (k) (l) (m) (n) A B C A B C A B C R S T R S T R S T (o) (p) (q) Fig 3-4 An example of how deadlock occurs and how it can be avoided R A B C S D F U W G (a) T E D V U R E V G (b) ... Request all resources initially Take resources away Order resources numerically Fig 3-14 Summary of approaches to deadlock prevention ...
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A computer system consists of hardware, system programs, and application programs figs 4
... Selector Offset Descriptor Base address + Limit Other fields 32-Bit linear address Fig 4-45 Conversion of a (selector, offset) pair to a linear address 10 Linear address 10 12 Dir Bits Page Offset ... 4-11 The internal operation of the MMU with 16 4-KB pages Second-level page tables Page table for the top 4M of memory Top-level page table 1023 Bits 10 PT1 10 12 PT2 Offset (a) 1023 (b) Fig 4-12 ... algorithm simulates LRU in software Shown are six pages for five clock ticks The five clock ticks are represented by (a) to (e) w(k,t) k Fig 4-20 The working set is the set of pages used by the k...
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A computer system consists of hardware, system programs, and application programs figs 5
... I/O software Device-independent operating system software Device drivers Interrupt handlers Hardware Fig 5-10 Layers of the I/O software system User process User program User space Rest of the ... Spiral groove Pit Land 2K block of user data Fig 5-20 Recording structure of a compact disc or CD-ROM … Symbols of 14 bits each 42 Symbols make frame Frames of 588 bits, each containing 24 data ... 32 bits Time of day in ticks Counter in ticks Time of day in seconds Number of ticks in current second System boot time in seconds (a) (b) Fig 5-32 Three ways to maintain the time of day (c) Current...
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A computer system consists of hardware, system programs, and application programs figs 6
... Address of disk block Address of disk block Address of disk block Address of disk block Address of disk block Address of disk block Address of disk block Address of disk block Address of block of ... free list on a linked list (b) A bitmap Disk Main memory (a) (b) (c) Fig 6-22 (a) An almost-full block of pointers to free disk blocks in memory and three blocks of pointers on disk (b) Result of ... delete file on process exit for unlocked; nonzero for locked Number of bytes in a record Offset of the key within each record Number of bytes in the key field Date and time the file was created Date...
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A computer system consists of hardware, system programs, and application programs figs 7
... squares represent the populations of the 20 largest cities in the U.S., sorted on rank order (New York is 1, Los Angeles is 2, Chicago is 3, etc.) Frequency of use Movie 10 Movie Movie Movie ... RGB input data (b) After block preparation Q Fy DCT y Y/I/Q Amplitude x Fx Fig 7-7 (a) One block of the Y matrix (b) The DCT coefficients 150 80 40 14 92 75 36 10 52 38 26 12 4 2 1 1 0 0 0 0 0 ... 16 16 32 32 32 32 32 32 32 32 64 64 64 64 64 64 64 64 64 64 64 64 64 64 64 Fig 7-8 Computation of the quantized DCT coefficients 150 80 20 0 92 75 18 0 26 19 13 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0...
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A computer system consists of hardware, system programs, and application programs figs 8
... mailbox Fig 8-39 The structure of a Globe object State of mailbox Interface used to access mailbox Class object Computer Computer R W Int Each computer has a copy of the integer (the object's state) ... Headers Fig 8-32 Accumulation of packet headers Message Uni versi of North South ty School of Humanities School of Sciences School of Social Sciences Science Northern University Social sciences ... Sequence of pages of a book Database query Fig 8-31 Six different types of network service Internet Host Router Message Ethernet header IP TCP Ethernet Headers Fig 8-32 Accumulation of packet...
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A computer system consists of hardware, system programs, and application programs figs 9
... Signer TaxPrep * www.microsoft.com Microsoft Object /usr/susan/1040.xls /usr/tmp/* /usr/susan/Office/– Action Read Read, Write Read, Write, Delete Fig 9-21 Some examples of protection that can be ... Use of access control lists to manage file access Kernel space File Password Pigeon data Access control list tana, sysadm: RW bill, pigfan: RW; tana, pigfan: RW; Fig 9-26 Two access control lists ... PASSWORD, TRY AGAIN LOGIN: uucp PASSWORD: uucp WELCOME TO THE ELXSI COMPUTER AT LBL Fig 9-5 How a cracker broke into a U.S Dept of Energy computer at LBL Bobbie, 4238, e(Dog4238) Tony, 2918, e(6%%TaeFF2918)...
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A computer system consists of hardware, system programs, and application programs figs 10
... columns of text from a file Search a file for some pattern Extract the first lines of a file List directory Compile files to build a binary Make a directory Octal dump a file Paste columns of text ... Remove a directory Sort a file of lines alphabetically Extract the last lines of a file Translate between character sets Fig 10-2 A few of the common UNIX utility programs required by POSIX System ... flags are miscellaneous bits, fd is a file descriptor, and offset is a file offset Main memory Core map entry Index of next entry Index of previous entry Page frame Disk block number Disk device...
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A computer system consists of hardware, system programs, and application programs figs 11
... Microsoft and third party software Hundreds of counters monitoring system performance Link to HKEY LOCAL MACHINE \SOFTWARE\ CLASSES Link to the current hardware profile Link to the current user profile ... Printers Software HKEY PERFORMANCE DATA HKEY CLASSES ROOT HKEY CURRENT CONFIG HKEY CURRENT USER Description Properties of the hardware and software Hardware description and mapping of hardware ... page needed (8) Page read in (6) Soft page fault (2) Working sets Top ModStandby Free Zeroed ified page page page page Modified list Dealloc(5) list list Zero list page page writer(4) thread (7)...
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A computer system consists of hardware, system programs, and application programs figs 12
... system Dummy procedure Dummy procedure Dummy procedure Deploy (a) (b) Fig 12-10 (a) Traditional software design progresses in stages (b) Alternative design produces a working system (that does ... /usr/ast/mbox /usr/ast/books /usr/bal /usr/bal/paper.ps I-node number 26 60 92 45 85 Fig 12-8 Part of the i-node cache for Fig 6-39 Title Chief programmer Copilot Administrator Editor Secretaries ... 5,8,1 4,2,17 10,11,5 3,8,13 90,2,6 10,30,8 4,6,9 4,19,20 88,4,3 26,4,9 22,2,0 (c) Fig 12-7 (a) Part of an uncompressed image with 24 bits per pixel (b) The same part compressed with GIF, with bits...
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báo cáo hóa học:" Cross-cultural development of an item list for computer-adaptive testing of fatigue in oncological patients" potx
... Quality of Life Department Translation Office translated the item list into the languages of the participating centres Researchers at the participating centres then reviewed the item list for ... addition to these basic features, ideal software should provide data storage and elaborate graphical presentation of results to medical staff Over the last few years software development for electronic ... Giesinger et al.: Cross-cultural development of an item list for computer- adaptive testing of fatigue in oncological patients Health and Quality of Life Outcomes 2011 9:19 Submit your next manuscript...
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báo cáo khoa học:" Cross-cultural development of an item list for computer-adaptive testing of fatigue in oncological patients" doc
... Quality of Life Department Translation Office translated the item list into the languages of the participating centres Researchers at the participating centres then reviewed the item list for ... addition to these basic features, ideal software should provide data storage and elaborate graphical presentation of results to medical staff Over the last few years software development for electronic ... Giesinger et al.: Cross-cultural development of an item list for computer- adaptive testing of fatigue in oncological patients Health and Quality of Life Outcomes 2011 9:19 Submit your next manuscript...
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the cognitive dynamics of computer science - cost-effective large scale software development (2006)
... directly on computer science and the cost of computer software The first of these is raised by the following questions: Where computer science and computer software belong in engineering? Should software ... The Philosophical Foundations of Computer Software Design Understanding the philosophical foundations of computer software design is important only if one wishes to software well, and at a reasonable ... articulated through the eyes of a computer scientist, specifically a computer software architect or software developer, as opposed to the eyes of a philosopher or software theoretician Before I...
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Structure and interpretation of computer programs (harold abelson and gerald jay sussman)
... maer of this book involves us with three foci of phenomena: the human mind, collections of computer programs, and the computer Every computer program is a model, hatched in the mind, of a real ... smoothly they fit with other programs in the creation of still greater programs e programmer must seek both perfection of part and adequacy of collection In this book the use of “program” is focused ... are stimulated to invent new methods of reducing the mass of function and detail to be fied into large programs Unlike programs, computers must obey the laws of physics If they wish to perform...
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