Hardware and software requirements

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Many government and commercial impairment testing systems can be implemented on standard commercially available personal computer platforms (e.g., PC, Macintosh). Despite software and hardware advancements that have minimized the differences across platforms, it is still important to consider carefully the hardware and software requirements needed to support a system, as these specifications may have important implications for the accuracy of stimulus presentation and the precision of performance measures. In addition, there may be differential costs associated with the hardware and software specifications. The speed of the computer processor is one important specification that requires careful consideration. Other concerns include the amount of memory that is needed to present the test and record the results, the manner in which the data are to be stored, the size and portability of the computer, and the video-display requirements. Some systems... 

Network architectures define the structure of the network, including hardware, software, and layout. We differentiate each architecture by the hardware and software required to maintain optimum performance levels. The major architectures in use today are Ethernet, Token Ring, ARCNet, and AppleTalk. 

The number of facilities capable of performing in vivo 19F MR spectroscopy is limited, in part due to the substantial hardware and software requirements associated with data acquisition and analysis. Because there is no reimbursement for MR spectroscopic examinations in the United States [54, 55], the number of clinical applications will continue to lag behind development of structural MR imaging. 

Is original hardware and software required for access/query ... 

Hardware and Software Requirements and Selection. A number of requirements influenced the early design phases for POTW EXPERT. These were related primarily to the user community for the system, development and delivery hardware, and the need to continually update the system. 

Part 1 Framework, definitions, system, hardware and software requirements... 

Functional safety—safety instrumented systems for the process industry sector—Part 1 Framework, definitions, system, hardware and software requirements (lEC 61511-1 2003 + Corrigendum 2004) German version EN 61511-1 2004... 

To prevent the introduction of faults during the design and development of the SIS hardware and software, requirements for the avoidance and control of systematic faults (i.e. related in a deterministic way to a certain cause) are introduced. Techniques and measures are given in Part 2 Atmexes A and B. 

User Manual NCSU Concrete Materials Database Program. This companion document to NCSU Concrete Materials Database (SHRP-C/ UWP-91-501), contains instructions on how to log onto the database query the database for information, and input data. A reference section provides information on hardware and software requirements, as well as further information on querying and adding information to the database. 71 pages. SHRP-C/UWP-91-502... 

Functional Safety Safety Instrumented Systems for the Process Industry Sector - Part 1 Framework, Definitions, System, Hardware and Software Requirements... 

ANSI/ISA-84.00.01-2004, Part 1, Framework, Definitions, Systems, Hardware and Software Requirements, International Society of Automation (ISA), www.isa.ora. 2004, ISBN 1-55617-979-... 

The SSR s information closure is the requirement that the information contained in the SSR is sufficient to drive its successful replication without any additional external information. Completing the hardware and software requirements further extends the information closure requirement by demanding that the computing hardware and software present in the SSR together with the information resident in the SSR are sufficient to drive, control, and successfully complete the cloning and division phases of SSR replication. The SSR s hardware and software must provide full automation of the control, fabrication, assemblage, and the handling of special situations like error detection, error repair, and recovery after error. 

Hardware and software requirements (hierarchy 4) - component and part level. 

Part 1 Framework, definitions, system, hardware and software requirements Part 2 Guidelines in the application of lEC 61511-1 Part 3 Guidelines in the application of Hazard Risk Analysis Draft copies of this standard have been in circulation amongst contributing parties but publication of the approved version is not expected to be complete until later in 2003. Parts 1 and 2 have been available for purchase from lEC from February 2003. This standard will be of great value for practical application in the process industries. It incorporates substantial sections of guide material previously published in ISA S84.0I and is expected to replace ISA S84.01. 

Figure 9.3 shows the typical control system development routes in which hardware and software requirements flow from the SIS architecture decisions. We see that application software requirements are to be defined in the knowledge of the selected embedded software. In other words you cannot specify the details of your application without knowing the operating systems and utility tools you are going to work with. 

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