thu chi trong gia đình tiết 2
slike bài giảng ứng dụng xây dựng hệ thống thông tin chương 8 evaluating alternatives for requirements, environment, and implementation
Ngày tải lên :
24/10/2014, 15:36
... Matrix of General Requirements 19 Partial Matrix of Functional Requirements 20 Partial Matrix of Technical Requirements 21 Making the Selection First, rate each alternative with raw score Weighted ... technical specialists RMO feasibility review showed no serious problems – once specialists are added 22 Contracting with Vendors Generating Request for Proposal (RFP) Formal document sent to vendors ... support services 23 Sample RFP Table of Contents I Introduction and Background II Overview of Need III Description of Technical Requirements IV Description of Functional Requirements 24 Sample RFP...
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A computer system consists of hardware, system programs, and application programs figs 1
Ngày tải lên :
28/04/2014, 16:35
... User program and data Registers when program is running Limit -2 User -2 data Base -2 Limit -2 Limit User program and data Base Base -2 User-1 data Limit-1 Base-1 User program Limit-1 Base-1 Operating ... Client obtains service by sending messages to server processes Fig 1 -27 The client-server model User mode Machine Machine Machine Machine Client File server Process server Terminal server Kernel Kernel ... an empty directory Win 32 does not support links Destroy an existing file Win 32 does not support mount Win 32 does not support mount Change the current working directory Win 32 does not support security...
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A computer system consists of hardware, system programs, and application programs figs 2
Ngày tải lên :
28/04/2014, 16:35
... picks a thread Possible: A1, A2, A3, A1, A2, A3 Not possible: A1, B1, A2, B2, A3, B3 Possible: A1, A2, A3, A1, A2, A3 Also possible: A1, B1, A2, B2, A3, B3 (a) (b) Fig 2- 43 (a) Possible scheduling ... inspected Fig 2- 16 Conflicts between threads over the use of a global variable Thread 1's code Thread 2' s code Thread 1's stack Thread 2' s stack Thread 1's globals Thread 2' s globals Fig 2- 17 Threads ... caller Fig 2- 25 Implementation of mutex lock and mutex unlock monitor example integer i; condition c; procedure producer( ); end; procedure consumer( ); end; end monitor; Fig 2- 26 A monitor...
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A computer system consists of hardware, system programs, and application programs figs 3
Ngày tải lên :
28/04/2014, 16:35
... (E1, E2, E3, …, Em) Resources available (A1, A2, A3, …, Am) Current allocation matrix Request matrix C11 C21 C 12 C 22 C13 C23 C1m C2m R11 R21 R 12 R 22 R13 R23 R1m R2m Cn1 Cn2 Cn3 Cnm Rn1 Rn2 Rn3 ... 1 A 1 0 B 0 B 1 C 1 C 0 D 1 D 0 E 0 0 E 1 Resources assigned E = (63 42) P = (5 322 ) A = (1 020 ) Resources still needed Fig 3- 12 The banker’s algorithm with multiple resources 1 Imagesetter Scanner ... resource 1; semaphore resource 2; semaphore resource 1; semaphore resource 2; void process A(void) { down(&resource 1); down(&resource 2) ; use both resources( ); up(&resource 2) ; up(&resource 1); } void...
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A computer system consists of hardware, system programs, and application programs figs 4
Ngày tải lên :
28/04/2014, 16:35
... 4 -21 The working set algorithm 22 04 Current virtual time 1 620 1 620 20 32 2084 20 20 20 03 1980 Time of last use 1980 (b) 1 620 1 620 20 32 2 020 20 03 1980 20 14 121 3 (c) 20 14 121 3 R bit (a) 20 84 20 20 ... 48K-52K X 44K-48K 40K-44K X 36K-40K 32K-36K X Physical memory address 28 K-32K X 28 K-32K 24 K -28 K X 24 K -28 K 20 K -24 K 20 K -24 K 16K -20 K 16K -20 K 12K-16K 12K-16K 8K-12K 8K-12K 4K-8K 4K-8K 0K-4K Virtual page ... 20 20 20 03 1980 20 14 121 3 (c) 20 14 121 3 R bit (a) 20 84 20 20 20 03 20 14 121 3 20 32 2084 20 32 2084 20 20 20 03 1980 20 14 22 04 New page (d) Fig 4 -22 Operation of the WSClock algorithm (a) and (b) give an...
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A computer system consists of hardware, system programs, and application programs figs 5
Ngày tải lên :
28/04/2014, 16:35
... 1 21 14 19 20 22 10 11 12 11 12 13 14 15 10 16 29 15 16 17 81 14 13 12 11 10 30 31 29 28 10 25 24 26 23 27 22 27 28 29 26 28 21 25 30 31 31 29 24 28 2 31 27 26 25 30 21 20 22 22 23 24 23 21 25 ... 29 28 27 26 25 Spare sectors Bad 24 sector 23 22 10 21 11 20 12 19 13 18 17 14 16 15 29 28 27 26 25 Replacement sector 24 23 22 10 21 11 20 12 19 13 18 17 14 16 15 (a) (b) 28 29 27 26 25 24 23 ... a Western Digital WD 18300 hard disk 30 31 23 21 20 16 26 19 7 10 15 11 12 13 14 11 20 10 21 18 17 11 12 13 10 24 23 89 22 15 14 24 22 27 28 29 12 13 14 15 16 17 18 19 Fig 5-18 (a) Physical...
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A computer system consists of hardware, system programs, and application programs figs 6
Ngày tải lên :
28/04/2014, 16:35
... 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 (b) 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 (c) 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 ... 27 28 29 30 31 32 (d) 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Fig 6 -25 Bit maps used by the logical dumping algorithm Block number Block number 1011 121 31415 1011 121 31415 ... 17, 18 42 230 86 1001101101101100 136 1 62 234 0110110111110111 21 0 6 12 897 1010110110110110 97 3 42 422 0110110110111011 41 21 4 140 1110111011101111 63 160 22 3 1101101010001111 21 664 22 3 0000111011010111...
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A computer system consists of hardware, system programs, and application programs figs 7
Ngày tải lên :
28/04/2014, 16:35
... 19 13 2 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2 4 4 8 8 8 16 16 16 16 16 32 32 32 32 32 16 16 16 16 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 ... Stream 24 23 Stream 15 Stream Track 9000 18000 27 000 36000 45000 54000 63000 720 00 81000 20 7000 Track 9001 18001 27 001 36001 45001 54001 63001 720 01 81001 20 7001 Track 90 02 180 02 270 02 360 02 450 02 ... movie A A2 A1 B A3 B1 A4 B2 B3 C3 RMS A1 B1 C1 A2 B2 C2 A3 EDF A1 B1 C1 A2 B2 C2 A3 B4 C2 C C1 10 20 30 40 A5 50 60 B3 A4 B3 70 80 90 C3 A4 100 A5 B4 C3 A5 B4 110 120 130 Time (msec) Fig 7- 12 An...
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A computer system consists of hardware, system programs, and application programs figs 8
Ngày tải lên :
28/04/2014, 16:35
... L I M N (c) Fig 8- 12 Using a single data structure for scheduling a multiprocessor 8-CPU partition 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 6-CPU partition 25 26 27 28 29 30 31 Unassigned ... Memories 000 001 1A 2A 000 3A b b 010 1B 2B b 010 3B 011 011 b 100 1C 100 3C 2C 101 110 111 001 101 a a 1D a 2D Fig 8-5 An omega switching network a 3D 110 111 Node Node CPU Memory Node 25 5 CPU Memory ... A3 A4 A5 B0 B1 B2 C0 C1 C2 Time slot D0 D1 D2 D3 D4 E0 E1 E2 E3 E4 E5 E6 A0 A1 A2 A3 A4 A5 B0 B1 B2 C0 C1 C2 D0 D1 D2 D3 D4 E0 E1 E2 E3 E4 E5 E6 Fig 8-15 Gang scheduling (a) (b) (c) (d) (e)...
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A computer system consists of hardware, system programs, and application programs figs 9
Ngày tải lên :
28/04/2014, 16:35
... R2,R5 SUB #4,R1 JMP +1 MOV R1,X MOV R5,Y (e) Virual address in MB 25 6 22 4 Ref Mon 1 92 160 Reference monitor for checking system MOV R1, S1 SHR #24 , S1 CMP S1, S2 TRAPNE JMP (R1) 128 96 64 32 ... Energy computer at LBL Bobbie, 423 8, e(Dog 423 8) Tony, 29 18, e(6%%TaeFF2918) Laura, 69 02, e(Shakespeare69 02) Mark, 1694, e(XaB@Bwcz1694) Deborah, 10 92, e(LordByron,10 92) Fig 9-6 The use of salt to ... RW; tana, pigfan: RW; Fig 9 -26 Two access control lists Owner Process A B F1 F1:R F1:R F2:R F2 F2:R F2:RW User space F3:RX F3 C Kernel space F3:RWX C-list Fig 9 -27 When capabilities are used,...
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A computer system consists of hardware, system programs, and application programs figs 10
Ngày tải lên :
28/04/2014, 16:35
... Linux uses three-level page tables Offset Virtual address 32 32 32 32 32 32 32 32 16 16 16 8 4 8 4 8 4 8 8 8 8 (d) (e) (f) (g) (h) 64 32 16 (a) (b) (c) Fig 10-18 Operation of the buddy algorithm ... created Allocate child's process table entry Fill child's entry from parent Allocate child's stack and user area Fill child's user area from parent Allocate PID for child Set up child to share ... z a b x d c p q r c q d q r Fig 10 -26 (a) Separate file systems (b) After mounting y z Process A's shared lock (a) 10 11 12 13 14 15 10 11 12 13 14 15 10 11 12 13 14 15 A's shared lock (b) B's...
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A computer system consists of hardware, system programs, and application programs figs 11
Ngày tải lên :
28/04/2014, 16:35
... 15 15 15 15 Highest 26 15 12 10 Above normal 25 14 11 Normal 24 13 10 Below normal 23 12 Lowest 22 11 Idle 16 1 1 Idle 15 Fig 11-18 Mapping of Win 32 priorities to Windows 20 00 priorities Priority ... 1999 20 00 AT&T V6 V7 BSD MINIX Linux Solaris Win NT 9K 21 K 4.1 38K 4 .2 4.3 98K 179K Sys III 58K SVR3 92K SVR4 28 0K 1.0 13K 0.01 Free 1.0 23 5K 4.4 Lite 743K 10K 5.3 850K 1.0 2. 0 165K 470K 2. 2 6M ... 11- 12 Some typical directories in the object name space Gdi 32. dll User 32. dll Enviroment subsystem process (csrss.exe) User space Call Kernel 32. dll User process Call Call 2b Win 32 subsys 2a 3b...
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A computer system consists of hardware, system programs, and application programs figs 12
Ngày tải lên :
28/04/2014, 16:35
... 90 ,2, 6 7 3,8,13 3,8,13 4,19 ,20 4,6,9 7 4,6,9 10,30,8 5,8,1 22 ,2, 0 10 10,11,5 4 ,2, 17 88,4,3 66,4,43 11 (a) (b) 11 10 66,4,43 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 ... + ((b> >2) &1) + ((b>>3)&1) + \ ((b>>4)&1) + ((b>>5)&1) + ((b>>6)&1) + ((b>>7)&1) (b) /*Macro to look up the bit count in a table */ char bits [25 6] = {0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, ... 4, 1, 2, 2, 3, 2, 3, 3, }; #define bit count(b) (int) bits[b] (c) Fig 12- 6 (a) A procedure for counting bits in a byte (b) A macro to count the bits 8 Bits 24 Bits 24 Bits 3,8,13 3,8,13 26 ,4,9...
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System Analysis and Design - Complete Introductory Tutorial for Software Engineering
Ngày tải lên :
27/10/2013, 23:15
... Approval .39 3 .2. Estimation 40 3 .2. 1.Lines of code (LOC) 40 3 .2. 2.FP Estimation 42 3 .2. 3.Empirical Estimation 45 3 .2. 4.COCOMO, COnstructive ... Value Present Value Cumulative present Value of Benefits 3000 26 08.69 26 08.69 3000 22 68.43 4877. 12 3000 19 72. 54 6949.66 3000 1715 .25 8564.91 3000 1491.53 10056.44 Net Present Value : NPA The net ... 3.64 Cost of software = Development Cost * person-month = 8000 * 3.64 = $ 29 120 Cost / LOC = 29 120 /10900 = 2. 67 $/LOC 3 .2. 2 FP Estimation Function oriented metrics focus on program "functionality"...
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SIEMENS - simatic system software for S7-300/400 system and standard functions pot
Ngày tải lên :
29/03/2014, 12:20
... Functions A5E0 026 1410-01 Contents 21 PROFInet 21 .1 21 .2 21.3 21 .4 22 22 .3 22 .4 22 .5 22 .6 22 .7 22 .8 22 .9 22 .10 22 .11 22 . 12 22. 13 22 .14 22 .15 22 .16 22 .17 23 Background Information on SFCs 1 12, 113 and ... Functions A5E0 026 1410-01 xiii Contents 24 IEC Functions 24 .1 24 .2 24.3 24 .4 24 .5 24 .6 24 .7 24 .8 24 .9 24 .10 24 .11 25 27 -1 Controlling Operation in H systems with SFC90 "H_CTRL" 27 -1 28 -1 SFB29 (HS_COUNT) ... Slave 31-50 Events 32. 1 32. 2 32. 3 32. 4 32. 5 32. 6 32. 7 32. 8 32. 9 32. 10 32. 11 32. 12 31-1 32- 1 Events and Event ID . 32- 1 Event Class - Standard OB Events 32- 3 Event Class - Synchronous...
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Báo cáo sinh học: " Novel data storage for H.264 motion compensation: system architecture and hardware implementation" pdf
Ngày tải lên :
18/06/2014, 22:20
... fps@ 21 5 MHz luma, Cb, Cr News QCIF 176x144 126 23 1 72 Train QCIF 176x144 8015.5 27 0.9 Bridge CIF 352x288 21 87.7 24 8 Flower CIF 352x288 25 02. 2 21 6 Mobcall HD 720 p 128 0x 720 22 9.9 25 9.6 Parkrun HD 720 p ... Stratix IV EP4SGX230KF40C2 has been used A stand alone H .26 4 q-pel MC block has achieved speeds between 95.9 fps for HD1080p frames, 22 9 fps for HD 720 p and between 25 02 and 126 2 fps for CIF and ... hardware implementation of a stand alone H .26 4 q-pel MC on FPGA has shown speeds between 95.9 fps for HD1080p frames, 22 9 fps for HD 720 p and between 25 02 and 126 23 fps for CIF and QCIF formats Keywords:...
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báo cáo hóa học:" Novel data storage for H.264 motion compensation: system architecture and hardware implementation" doc
Ngày tải lên :
20/06/2014, 04:20
... fps@ 21 5 MHz luma, Cb, Cr News QCIF 176x144 126 23 1 72 Train QCIF 176x144 8015.5 27 0.9 Bridge CIF 352x288 21 87.7 24 8 Flower CIF 352x288 25 02. 2 21 6 Mobcall HD 720 p 128 0x 720 22 9.9 25 9.6 Parkrun HD 720 p ... Stratix IV EP4SGX230KF40C2 has been used A stand alone H .26 4 q-pel MC block has achieved speeds between 95.9 fps for HD1080p frames, 22 9 fps for HD 720 p and between 25 02 and 126 2 fps for CIF and ... hardware implementation of a stand alone H .26 4 q-pel MC on FPGA has shown speeds between 95.9 fps for HD1080p frames, 22 9 fps for HD 720 p and between 25 02 and 126 23 fps for CIF and QCIF formats Keywords:...
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Báo cáo toán học: " Novel data storage for H.264 motion compensation: system architecture and hardware implementation" pot
Ngày tải lên :
20/06/2014, 21:20
... fps@ 21 5 MHz Cycle count /MB luma, Cb, Cr News QCIF 176x144 126 23 1 72 Train QCIF 176x144 8015.5 27 0.9 Bridge CIF 352x288 21 87.7 24 8 Flower Mobcall CIF HD 720 p 352x288 128 0x 720 25 02. 2 22 9.9 21 6 25 9.6 ... Stratix IV EP4SGX230KF40C2 has been used A stand alone H .26 4 q-pel MC block has achieved speeds between 95.9 fps Page of 12 for HD1080p frames, 22 9 fps for HD 720 p and between 25 02 and 126 2 fps for ... Parkrun HD 720 p 128 0x 720 21 7.9 27 4 Riverbed HD1080p 1 920 x1080 95.9 27 6.6 Matei et al EURASIP Journal on Image and Video Processing 20 11, 20 11 :21 http://jivp.eurasipjournals.com/content /20 11/1 /21 SDRAM...
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Báo cáo hóa học: " Research Article Adaptive Bandwidth Management and Joint Call Admission Control to Enhance System Utilization and QoS in Heterogeneous Wireless Networks" pptx
Ngày tải lên :
22/06/2014, 19:20
... T0 0. 12 0.1 0.08 0.06 0.04 0. 02 1E − 01 1E − 02 1E − 03 1E − 04 0 Call arrival rate Pb2 of AJCAC Pd2 of AJCAC 10 15 20 25 30 New call rejection threshold, T0 Pb2 of NAJCAC Pd2 of NAJCAC Pb2 of ... i (3) j =1 (2) βi, j = ∀i λn j i, Similarly λh j = βi, j λh i, i ∀ i, j, J λh = i λh j i, j =1 ∀ i, (4) Available bandwidth O E Falowo and H A Chan B1 = t21 B2 = t 22 t11 RAT t 12 t 02 t01 RAT Access ... Networking 0 .25 Parameters Class-i call bbu set Requested bbu (bi,req ) λn i μi B1 30 B2 60 Class-1 call {2, 3, 4} [1,8] 0.5 Other parameters t0 ,2 t1,1 t1 ,2 30 30 60 t0,1 15 Class -2 call {3, 5,...
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DC motor position and speed tracking (PAST) system using neural networks
Ngày tải lên :
04/10/2015, 10:25
... (PAST) System Field C (Output layer) W (2) 11 W ( 2) 21 Field B (Hidden layer) W (1)11 W (1) 31 W (1) 21 W(1) 12 W (1) 22 W (1) 32 Field A (Input layer) Figure 3 .2: Layout of Feed Forward Neural Network ... Neuro-controller With a Modified Error Function 20 2. 6 Conclusion 24 Position and Speed Tracking (PAST) System 27 3.1 Introduction 27 3 .2 Model of the DC Motor 28 3.3 DC Motor Equivalent Circuit in Discrete ... CHAPTER 1 12 Experimental Set Up 117 Results and discussion 118 5.10 Conclusion 123 CONCLUSION AND RECOMMENDATIONS 125 6.1 Introduction 125 6 .2 Conclusion 126 6.3 Recommendations for Future Work 128 ...
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