direct access file organization and structures

... Enhancements – Dec 05 Virtis and Opis Superstructure  New AASHTO standard analysis engine - Engine from PennDOT under special agreement - Steel girder, R/C slabs and beams analysis and rating (LFD) - ... FEA complete  Continue work on AASHTO Standard analysis engine - Add P/S concrete girder analysis and rating - Add R/C continuous beam and slab analysis and ratingTwo Bridges, One Project | Sections ... analysis, load combinations and results • Various common pier types: multi-column, bents, solid shaft and hammerhead • Works with Opis superstructure to automate load computations and load transfer •...

Ngày tải lên: 06/09/2012, 15:57

Ngày tải lên: 17/09/2012, 09:13

... and Jennifer Welch Smart Environments: Technology, Protocols and Applications / Diane J Cook and Sajal K Das (Editors) Fundamentals of Computer Organization and Architecture / M Abd-El-Barr and ... Instructions Mnemonics and Syntax 3.3 Assembler Directives and Commands 3.4 Assembly and Execution of Programs 3.5 Example: The X86 Family 3.6 Summary Exercises References and Further Reading 37 ... understanding and appreciation of the fundamentals of I/O operations, devices, and interfaces are of great importance The focus of Chapter is a study on input –output (I/O) design and organization...

Ngày tải lên: 19/09/2013, 15:53

... Add Unsigned addu R R[rd] = R[rs] + R[rt] And and R R[rd] = R[rs] & R[rt] And Immediate andi I Branch On Equal beq I Branch On Not Equal bne I Jump j Jump And Link Jump Register addi 8hex 9hex / ... interface between the hardware and software is of particular importance This new edition of Computer Organization and Design is mandatory for any student who wishes to understand multicore architecture ... programming it and its architecture.” —Jesse Fang, Director of Programming System Lab at Intel “The fourth edition of Computer Organization and Design continues to improve the high standards set...

Ngày tải lên: 19/09/2013, 15:53

... để kiểm tra file không tham chiếu đếm liên kết không file, directory, file đặc biệt Thông báo nh sau: UNREF FILE I=inode number OWNER=O MODE=M SIZE=S MTIME=T (RECONNECT?) LINK COUNT FILE I=inode ... dùng lệnh newfs), mkswap tạo swap file system Ví dụ mke2fs /dev/hda1 mkswap /dev/hda2 Mounting and unmounting file systems Mounting file systems Nh ta biêt hệ thống file UNIX đợc lu trữ dới dạng ... hệ thống file đợc mount một th mục Để mount hệ thống file dùng lệnh mount cú pháp nh sau: mount /dev/device tên device mà ta muốn mount /directory...

Ngày tải lên: 28/09/2013, 11:20

... để kiểm tra file không tham chiếu đếm liên kết không file, directory, file đặc biệt Thông báo sau: UNREF FILE I=inode number OWNER=O MODE=M SIZE=S MTIME=T (RECONNECT?) LINK COUNT FILE I=inode ... lệnh newfs), mkswap tạo swap file system Ví dụ mke2fs /dev/hda1 mkswap /dev/hda2 Mounting and unmounting file systems Mounting file systems Như ta đ biêt hệ thống file UNIX lưu trữ dạng thư mục ... thiết bị thể dạng file Các file thiết bị thường đặt thư mục /dev Với hệ điều hành UNIX file thiết bị ký hiệu khác đặt mức thư mục thấp Thông thường hệ điều hành UNIX tự động tạo file thiết bị mà...

Ngày tải lên: 09/10/2013, 13:20

... can read and execute the program, and nobody else can anything with it) The permissions for the draft document would be rw-r - (I can read and write, the group can read, and others can’t access ... of the files, but I can’t access them I am the only person who can access the directory Mail This is the normal permission for a mail directory Changing file permissions and owners Often enough, ... files that you can only read, and that nobody else can access at all If you disallow the x (executable) bit, you will not be able to access directories you create, and you won’t be able to run...

Ngày tải lên: 22/10/2013, 19:15

... can as a file Input Output Techniques § Programmed § Interrupt driven § Direct Memory Access (DMA) Programmed I/O § CPU has direct control over I/O • Sensing status • Read/write commands • Transferring ... I/O • Devices and memory share an address space • I/O looks just like memory read/write • No special commands for I/O (No I/O instruction) ü Large selection of memory access commands available ... instruction = one I/O command Addressing I/O Devices § § § Under programmed I/O data transfer is very like memory access (CPU viewpoint) Each device given unique identifier CPU commands contain identifier...

Ngày tải lên: 05/11/2013, 22:15

... example is a file system whose objects are files As a naming service, the file system associates a name, the filename, with a value, the file handle A user requests a file by its name and the operating ... Naming and directory services also lack a common data access language like SQL and you usually rely on a vendor’s API for access Fortunately, Java’s JNDI API addresses this lack of a standard access ... provides more detail on naming and directory services as well as how to interact with them using the Java Naming and Directory Interface (JNDI) API The Lightweight Directory Access Protocol (LDAP) is...

Ngày tải lên: 10/12/2013, 02:15

... Services § § § § § § § Program creation Program execution Access to I/O devices Controlled access to files System access Error detection and response Accounting O/S as a Resource Manager Types ... allocated to program and data May be a number of program and data segments Advantages of Segmentation § Simplifies handling of growing data structures § Allows programs to be altered and recompiled ... not require contiguous page frames Use page table to keep track Logical and Physical Addresses - Paging Virtual Memory § Demand paging • Do not require all pages of a process in memory • Bring in...

Ngày tải lên: 12/12/2013, 09:15

... • All addresses implicit • Uses a stack ü Operands are on top of stack • e.g push a • push b • add • pop c • c=a+b Dis, stack can not be accessed randomly -> difficult to generate efficient code ... highest address § This is called little-endian Standard … What Standard? § Pentium (80x86), VAX are little-endian § IBM 370, Moterola 680x0 (Mac), and most RISC are big-endian § Internet is big-endian ... allowed in an instruction § Decide the categories of processor architecture § addresses • Operand 1, Operand 2, Result • a = b + c; • May be a forth - next instruction (usually implicit) • Not common...

Ngày tải lên: 12/12/2013, 09:15

... Opcode operand Size of number is restricted to the size of operand filed Direct Addressing § Address field contains address of operand § Effective address EA = address field A § Operand = (EA) ... Multiple memory accesses to find operand § Hence slower Indirect Addressing Diagram Instruction Opcode Address A Memory Pointer to operand Operand Register Addressing (1) § § § § § Operand is held ... c.f Direct addressing § § § § Register Addressing Diagram Instruction Opcode Register Address R Registers Operand Register Indirect Addressing § § § § § C.f indirect addressing EA = (R) Operand...

Ngày tải lên: 12/12/2013, 09:15

... Instruction Cycle § Revision § Stallings Chapter Indirect Cycle § May require memory access to fetch operands § Indirect addressing requires more memory accesses § Can be thought of as additional instruction ... interrupt handling routine Next instruction (first of interrupt handler) can be fetched Data Flow (Interrupt Diagram) Prefetch § § § § Fetch accessing main memory Execution usually does not access ... is examined § If indirect addressing, indirect cycle is performed • Right most N bits of MBR transferred to MAR • Control unit requests memory read • Result (address of operand) moved to MBR Data...

Ngày tải lên: 12/12/2013, 09:15

... example is a file system whose objects are files As a naming service, the file system associates a name, the filename, with a value, the file handle A user requests a file by its name and the operating ... Naming and directory services also lack a common data access language like SQL and you usually rely on a vendor’s API for access Fortunately, Java’s JNDI API addresses this lack of a standard access ... provides more detail on naming and directory services as well as how to interact with them using the Java Naming and Directory Interface (JNDI) API The Lightweight Directory Access Protocol (LDAP) is...

Ngày tải lên: 15/12/2013, 20:15

... protocols to access and change information in Active Directory 8 Module 1: Introduction to Microsoft Windows 2000 File, Print, and Web Servers Active Directory also provides benefits for file and print ... Active Directory™ directory service that provides a way for users, and other clients in a distributed environment, to name, store, and retrieve information Active Directory enhances file and print ... directory services and is designed to work well in any organization regardless of its size Standards-based protocol Applications use the industry-standard Lightweight Directory Access Protocol (LDAP)...

Ngày tải lên: 17/01/2014, 08:20

... Describe the Active Directory™ directory service and its benefits for Windows 2000 file and print servers Installing and Configuring Microsoft® Windows® 2000 File, Print, and Web Servers vii ... Represents commands, command options, and portions of syntax that must be typed exactly as shown It also indicates commands on menus and buttons, icons, dialog box titles and options, and icon and menu ... (continued) 4:45 5:30 Module 5: Enhancing File and Print Servers with Active Directory viii Installing and Configuring Microsoft® Windows® 2000 File, Print, and Web Servers Trainer Materials Compact...

Ngày tải lên: 17/01/2014, 08:20

... Define Directives 386 Format and Parameters of the EQU Directive 386 Sample Code with and without the EQU Directive 386 Format and Parameters of the MOV Opcode 387 Format and Parameters ... 17.3 Assembly Language Directives 380 17.3.1 SEGMENT Directive 380 17.3.2 MODEL, STACK, DATA, and CODE Directives 382 17.3.3 PROC Directive 383 17.3.4 END Directive 384 ... Parameters of the IN and OUT Opcodes 387 Format and Parameters of the ADD Opcode 388 Format and Parameters of NEG, NOT, DEC, and INC 388 Format and Parameters of SAR, SHR, SAL, and SHL 389 Example...

Ngày tải lên: 24/01/2014, 21:20

... equation: Estimated parameters and partial effects of marginal changes in selected independent variables 23 Formal credit demand equation: Estimated parameters and direct and indirect partial effects ... credit demand equation: Estimated parameters and direct and indirect partial effects of marginal changes in selected independent variables 25 Annual income equation: Estimated parameters and partial ... were to study the determinants of access to and participation in existing formal and informal credit and saving systems, and to analyze the effects of household access to credit on agricultural...

Ngày tải lên: 16/02/2014, 03:20

... Broadband Networks.” http://www.sandvine.com Sandvine (2008b) “2008 Global Broadband Phenomena.” http://www.sandvine.com 29   Shalunov, Stanislav and Benjamin Teitelbaum (2001) “TCP Use and Performance ... Economic Review 71: 845-858 Sandvine (2002-2007) Occasional white papers and press reports on file sharing activity in North America and World-wide http://www.sandvine.com Sandvine (2008a) “2008 Analysis ... indicating file sharing explains more than 100% of the decline in record sales Movies and TV Smith and Telang (2006) Rob and Waldfogel (2007) Waldfogel (2007) Smith and Telang (2008) Does broadband...

Ngày tải lên: 18/02/2014, 00:20