figure30 7 a sample subnet mask consists of all binary 1s and 0s
A computer system consists of hardware, system programs, and application programs figs 7
... D5 (a) A0 A4 B3 B7 C2 C6 D1 D5 A1 A5 B0 B4 C3 C7 D2 D6 A3 A7 B3 B7 C3 C7 D3 D7 A1 A4 B2 B5 C3 C4 D3 D4 A3 A7 B0 B6 C1 C5 D0 D7 (b) A2 A6 B1 B5 C0 C4 D3 D7 (c) A2 A6 B2 B6 C2 C6 D2 D6 A3 A7 B2 ... After waiting (d) After starting to refill the buffer (e) Buffer full 120 Frame Video A A Frame A Audio track T T Video A A Frame A T T Video A A A T T Text track Fig 7- 17 Interleaving video, audio, ... Bob Dag, Alice Mooie dag Jazeker Hoe gaat het Prima En jij Goed Video English audio French audio German audio Fast forward Fast backward Fig 7- 3 A movie may consist of several files 1.00 0 .75 ...
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A computer system consists of hardware, system programs, and application programs figs 1
... 1 -7 A typical memory hierarchy The numbers are very rough approximations Read/write head (1 per surface) Surface Surface Surface Surface Surface Direction of arm motion Surface Surface Surface ... devices Fig 1-1 A computer system consists of hardware, system programs, and application programs Card reader Tape drive Input tape Output tape Printer 1401 (a) System tape (b) 70 94 (c) (d) 1401 ... of a disk drive Address Registers when program is running 0xFFFFFFFF User program and data Registers when program is running Limit-2 User-2 data Base-2 Limit-2 Limit User program and data Base...
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A computer system consists of hardware, system programs, and application programs figs 2
... 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 can have private global variables Spooler ... liberty, and dedicated to the proposition that all men are created equal Now we are engaged in a great civil war testing whether that nation, or any nation so conceived and so dedicated, can long ... threads run Runtime system picks a thread Kernel picks a process Kernel 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...
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A computer system consists of hardware, system programs, and application programs figs 3
... (e) Has Max Has Max Has Max Has Max A A A A B B B 4 B — — C C C C Free: (a) Free: (b) Free: (c) Fig 3-10 Demonstration that the state in (b) is not safe Free: (d) Has Max Has Max Has Max A A A B ... resource trajectories Has Max Has Max Has Max Has Max Has Max A A A A A B B 4 B – B – B – C C C C 7 C – Free: (a) Free: (b) Free: (c) Free: (d) Fig 3-9 Demonstration that the state in (a) is safe Free: ... (a) T E D V U R E V G (b) Fig 3-5 (a) A resource graph (b) A cycle extracted from (a) Resources in existence (E1, E2, E3, …, Em) Resources available (A1 , A2 , A3 , …, Am) Current allocation matrix...
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A computer system consists of hardware, system programs, and application programs figs 4
... growth A- Data A Actually in use A- Program Operating system Operating system (a) (b) Fig 4-6 (a) Allocating space for a growing data segment (b) Allocating space for a growing stack and a growing data ... External pager Page arrives Needed page Here is page Page fault Kernel space Fault handler Map page in MMU handler Fig 4-34 Page fault handling with an external pager Virtual address space Call ... Disk Pages Swap area Swap area Page table Page table 6 4 0 (a) Disk map (b) Fig 4-33 (a) Paging to a static swap area (b) Backing up pages dynamically 3 Request page Main memory User space User...
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A computer system consists of hardware, system programs, and application programs figs 5
... Infrared laser diode Fig 5-22 Cross section of a CD-R disk and laser (not to scale) A silver CD-ROM has a similar structure, except without the dye layer and with a pitted aluminum layer instead ... An RS-232 terminal communicates with a computer over a communication line, one bit at a time Terminal data structure Terminal data structure Central buffer pool Terminal Terminal Buffer area ... dump (SIGQUIT) End of file Carriage return (unchangeable) Linefeed (unchangeable) Fig 5-36 Characters that are handled specially in canonical mode Escape sequence ESC [ n A ESC [ n B ESC [ n...
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A computer system consists of hardware, system programs, and application programs figs 6
... list allocation using a file allocation table in main memory File Attributes Address of disk block Address of disk block Address of disk block Address of disk block Address of disk block Address ... key field Date and time the file was created Date and time the file was last accessed Date and time the file has last changed Number of bytes in the file Number of bytes the file may grow to ... (b) An archive (b) Attribute Protection Password Creator Owner Read-only flag Hidden flag System flag Archive flag ASCII /binary flag Random access flag Temporary flag Lock flags Record length...
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A computer system consists of hardware, system programs, and application programs figs 8
... Steps in making a remote procedure call The stubs are shaded gray Machine Machine Machine Machine Machine Machine Application Application Application Application Application Application Run-time ... (c) Situation if page 10 is read only and replication is used CPU Shared page CPU A B A B Code using variable A A and B are unrelated shared variables that just happen to be on the same page Code ... Operating system Operating system Operating system Operating system Operating system Operating system Hardware Hardware Hardware Hardware Hardware Hardware Shared memory Shared memory Shared...
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A computer system consists of hardware, system programs, and application programs figs 9
... Main’s Stack pointer Virtual address space Virtual address space Stack Main’s local variables Main’s local variables Return addr local variables Return addr A s local variables SP B A s local ... First page (in memory) F A B A A A A A A A A A A A A A A (a) (b) A Second page (not in memory) Page boundary Fig 9-12 The TENEX password problem (c) #include #include ... Goal Data confidentiality Data integrity System availability Threat Exposure of data Tampering with data Denial of service Fig 9-1 Security goals and threats Encryption key...
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A computer system consists of hardware, system programs, and application programs figs 10
... –rwx Allowed file accesses Owner can read, write, and execute Owner and group can read, write, and execute Owner can read and write; group can read Owner can read and write; all others can read ... 74 8 Same process ls exec call new sh 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 ... Create a new thread in the caller’s address space Terminate the calling thread Wait for a thread to terminate Create a new mutex Destroy a mutex Lock a mutex Unlock a mutex Create a condition variable...
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A computer system consists of hardware, system programs, and application programs figs 11
... tables Stacks, data, etc Stacks, data, etc Stacks, data, etc HAL + OS HAL + OS HAL + OS System data System data System data Process A' s private code and data Process B's private code and data ... Timers RAM Spin locks BIOS MOV EAX,ABC ADD EAX,BAX BNE LABEL MOV EAX,ABC MOV EAX,ABC ADD EAX,BAX BNE LABEL MOVE AX,ABC ADD EAX,BAX BNE LABEL Disk Printer Hardware abstraction layer Fig 11-8 Some of ... SACL Add a new ACE to a DACL or SACL allowing access Add a new ACE to a DACL or SACL denying access Remove an ACE from a DACL or SACL Attach a DACL to a security descriptor Fig 11-44 The principal...
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A computer system consists of hardware, system programs, and application programs figs 12
... Copilot Administrator Editor Secretaries Program clerk Toolsmith Tester Language lawyer Duties Performs the architectural design and writes the code Helps the chief programmer and serves as a sounding ... /usr/ast/books/mos2/Chap-12 Directory: /usr/ast/books/mos2 Chap-10 Chap-11 Chap-12 I-node table 114 38 Internal name: 2 Fig 12-3 Directories are used to map external names onto internal names ... board Manages the people, budget, space, equipment, reporting, etc Edits the documentation, which must be written by the chief programmer The administrator and editor each need a secretary Maintains...
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The Semantic Web:A Guide to the Future of XML, Web Services, and Knowledge Management phần 7 ppt
... Organization isa isa isa manages part _of isa manages President Class Company manages isa isa Manager Class Department Director Class Division manages isa isa manages Department part _of Class Division ... Vice_President manages Class Group part _of manages manages part _of Division Class Group part _of part _of Group Class Company part _of part _of Company Class Company part _of Figure 8.1 Graphical ontology example: ... An association role specifies how a particular topic acts as a member of an association, its manner of playing in that association If there were a uses association between Sammy Sosa and a Rawlings...
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A study on linguistic features of english competition law and vietnamese competition law
... legislative information is packaged by means of linguistic features In fact, legal language is often characterized as a technical language which is to say a language used by a specialist profession ... us, precision as an essential characteristic of there are large numbers of borrowed words from a particular legal language maintains authority and formality of legal documents language However, ... REVIEW AND THEORETICAL BACKGROUND 2.1 REVIEW OF PRIOR REARCH Mellinkoff [20] claims that legal language today is full of 1.5 ORGANIZATION OF THE STUDY mannerisms that have found their way in gradually,...
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Tài liệu Báo cáo khóa học: Trichostatin A reduces hormone-induced transcription of the MMTV promoter and has pleiotropic effects on its chromatin structure pptx
... template Graphical calculation of the total GR expressed in an oocyte following injection of ng GR mRNA, and comparison to a standard dilution curve (Fig 6A) allowed us to estimate an average of ... methylation [8], and the cleavage of DNA by alkali [31] The method allows easy detection of DNA–protein interactions via the N7 position of guanines in the major groove and via the N3 position of adenines ... TSA-treated and nontreated oocytes Dark bars show TSA-treated cells smearing of the nucleosomal pattern both in the promoter and vector sequences (Fig 3A, both panels, compare lanes 1, and 13 and...
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A Brief Memoir with Portions of the Diary, Letters, and Other Remains, potx
... Jr., of Birmingham, England, and daughter of John and Eliza Allen, was born at Liskeard, on the 9th of 6th month, 1823 As she felt a strong attachment to the scenes of her childhood, and an interest ... sins a full discharge; He crowns and saves us too," 27 and of a remark I had seen somewhere, "Look at Calvary, and wilt thou say that thy sins are easily passed by?" This evening in my andachtzimmer,[1] ... prevent my having any morning oblation The weakness and sinfulness of my heart have been making me almost tremble at the thought of another year: how shall I meet its thousand dangers and not fall?...
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Báo cáo khoa học: "A Competition-Ba sed Explanation of Syntactic Attachment Preferences and Garden Path Phenomena" pot
... satisfy grammatical constraints, stack node attachments are only activated if no other attachment is available for the XP The flexibility of CBSA allows the stack to activate more than one a- node, ... with a2 and a3 for the activation from the V and NP nodes, respectively; this competition draws activation away from al When the network stabilizes, a2 and a3 are highly active and al has become ... 1: An X template and sample instantiation Figure 2: (a) The basic configuration of a phrase in X theory (b) Representation of these attachments as sister relations in CAPERS Network CAPERS dynamically...
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báo cáo hóa học:" A general lithography-free method of micro/nanoscale fabrication and patterning on Si and Ge surfaces" doc
... A general lithography-free method of microscale/nanoscale fabrication and patterning on Si and Ge surfaces Huatao Wang1,2 and Tom Wu*1 Division of Physics and Applied Physics, School of Physical ... Ge as another notable group IV element has a smaller bandgap and a much higher mobility In general, compared with Si, the fabrication and patterning of Ge surfaces have been much less investigated, ... Ge(100), and Ge(110) substrates, respectively, and all the nanopits have the same orientation in a given sample The equilateral triangle and square pits exhibit lateral dimensions approximately...
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The Semantic Web: A Guide to the Future of XML, Web Services, and Knowledge Management doc
... fine-grained analysis of data Thus, in this stage, data no longer exists as a blob but as a part of a sophisticated microcosm An example of this data sophistication is the automatic translation of a ... relationships, and sophisticated formalisms where logical calculations can be made on this “semantic algebra.” This allows the combination and recombination of data at a more atomic level and ... friends and associates have enriched my life both personally and professionally with their professionalism, dedication, and drive I look forward to more years of challenge and growth at McDonald Bradley,...
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báo cáo khoa học: "Surgical perspectives from a prospective, nonrandomized, multicenter study of breast conserving surgery and adjuvant electronic brachytherapy for the treatment of breast cancer" pps
... shortened radiation treatment time (86%) and delivery of radiation to a smaller area of the body (77 %) Twelve of the patients ( 27% ) indicated that having a local treatment facility was a factor in ... insertion of the applicator followed by an incision site approach in 27% of cases, a medial approach in 5%, and an inferior approach in 7% A trocar was used during applicator insertion in 27% of cases ... given any local anesthetic or sedation during balloon applicator placement The size and shape of each balloon applicator was predicated to best fit the cavity geometry of each individual patient...
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