What is a multi-tiered system?  what does that mean?
112733
This means there are three possible systems that control the application.  A front end (top tier) that displays the graphics to the user.  A middle layer (middle tier) that is acting as a broker for user requests and tapping the back end resources like a database.  A final back end (bottom tier) is providing data services most likely.\n\nAn example would be the following type of application:\nweb browser <-> An HTTP server <-> A database
394266
RAID (Redundant Array of Independent Disks). A collection of disk drives that offers increased performance and fault tolerance. There are a number of different RAID levels. The three most commonly used are 0, 1, and 5: Level 0: striping without parity (spreading out blocks of each file across multiple disks). Level 1: disk mirroring or duplexing. Level 2: bit-level striping with parity Level 3: byte-level striping with dedicated parity. Level 3: byte-level striping with dedicated parity. Same as Level 0, but also reserves one dedicated disk for error correction data. It provides good performance and some level of fault tolerance. Level 4: block-level striping with dedicated parity. Level 5: block-level striping with distributed parity.
1178234
I think there may be lots of different interpretations of the terms, but at my workplace:\n\nTech Support was for the hardware and general software help.\n\nSystem Support was for specific application software help.
569265
you might want to be more specific. It could mean one of two things as I see it. 1) It could mean a governmental system which splits governing power between branches (executive, legislative, judicial) or in a federalist system (federal and state). Or 2) you could be refering to a mixed economy; a system somewhere situated between a free and command economy where the capital is privately owned but heavily regulated by the government (i.e. Great Britain, Sweden). Hope that helps.
1104456
A Legacy Platform is an operating system ("platform") that is considered outdated (and no longer supported) by the manufacturer. For instance, WIndows 98 is now considered a legacy platform.
276546
It's an expansion of the client-sever concept:\nOfr example, you can have a data layer, then a business rules layer, and finally a GUI layer.
807385
define systems evaluations (specifically to what you need) it could be OS integrity, PC hardware/software compat.  future-proofing...or systems as in server farming - what do you want to know ?
531729
These links found in Google may help:\n\nhttp://www.google.co.uk/search?hl=en&q=what+is+multi+user+operating+system&btnG=Google+Search&meta=\n\n\nA multi-user operating system allows more than one user to utilize the computer's resources simultaneously. A multi-user operating system ensures that the requirements of various users are balanced. It makes sure that each of the programs they are using has sufficient and separate resources. A problem with one user doesn't affect the other logged-in users. Examples of multi-user operating systems are UNIX, VMS, and mainframe operating systems, such as MVS. \nNote that the popular PC operating systems such as Windows 2000 and Novell Netware aren't true multi-user operating systems, although they can support hundreds or thousands of networked users. The system administrator is the only user for Windows 2000. The network support and all remote user logins are, in the overall plan of the operating system, a program being run by the administrative user. \nMulti-user operating systems are used for a host of benefits. Security and Cost-effectiveness rank amongst the primary reasons for the same.
690691
Short for Redundant Array of Independent (or Inexpensive) Disks, a category of disk drives that employ two or more drives in combination for fault tolerance and performance. RAID disk drives are used frequently on servers but aren't generally necessary for personal computers.\n\nThere are number of different RAID levels:\n# Level 0 -- Striped Disk Array without Fault Tolerance: Provides data striping (spreading out blocks of each file across multiple disk drives) but no redundancy. This improves performance but does not deliver fault tolerance. If one drive fails then all data in the array is lost.\n# Level 1 -- Mirroring and Duplexing: Provides disk mirroring. Level 1 provides twice the read transaction rate of single disks and the same write transaction rate as single disks.\n# Level 2 -- Error-Correcting Coding: Not a typical implementation and rarely used, Level 2 stripes data at the bit level rather than the block level.\n# Level 3 -- Bit-Interleaved Parity: Provides byte-level striping with a dedicated parity disk. Level 3, which cannot service simultaneous multiple requests, also is rarely used.\n# Level 4 -- Dedicated Parity Drive: A commonly used implementation of RAID, Level 4 provides block-level striping (like Level 0) with a parity disk. If a data disk fails, the parity data is used to create a replacement disk. A disadvantage to Level 4 is that the parity disk can create write bottlenecks.\n# Level 5 -- Block Interleaved Distributed Parity: Provides data striping at the byte level and also stripe error correction information. This results in excellent performance and good fault tolerance. Level 5 is one of the most popular implementations of RAID.\n# Level 6 -- Independent Data Disks with Double Parity: Provides block-level striping with parity data distributed across all disks.\n# Level 0+1 – A Mirror of Stripes: Not one of the original RAID levels, two RAID 0 stripes are created, and a RAID 1 mirror is created over them. Used for both replicating and sharing data among disks.\n# Level 10 – A Stripe of Mirrors: Not one of the original RAID levels, multiple RAID 1 mirrors are created, and a RAID 0 stripe is created over these.\n# Level 7: A trademark of Storage Computer Corporation that adds caching to Levels 3 or 4.\n# RAID S: EMC Corporation's proprietary striped parity RAID system used in its Symmetrix storage systems.
30296
It's a synchronized database distributed accross multiple servers. \n\nhttp://en.wikipedia.org/wiki/Distributed_database\n\nGoogle is your friend.
562196
Multi-tasking - That is the process of doing more than one task at the same time on the same computer. Multitasking is purely related to a single computer or a single processor. \nBeyond that you get into OS specifics as to how interupts, background tasks, time slicing and other factors are handled. \n\nMulti-processing is generally in referece to machines with multiple CPUs and is about how that machine will break up tasks between the CPUs. Again to get into details you have to get OS specific as each OS handles this differently. \n\nParallel processing is normally used about distributing tasks accross multiple machines. Each machine processing a portion of a problem. It's most often used in dealing with simulations, searches, data mining or brute force attacks on a problem. All tasks that are easily broken up and to assign to individual machines. \n\nSome common examples of this are how DES was broken and SETI. Many heavily used web servers use clusters to do parrallel processing. That is servers are assigned to handle user requests from the pool to provide load distrabution, failover redundancy and better throughput.
831004
what are you talking about?\ndepartmentalization means that your dividing work among a business like adding a human resources department or a costumer service desk.lots of big companies do this to hire people with special skills in these areas and lessen the work load on others.
1017724
I would assume the top level is the computer system's operating system. There is nothing higher. It did cross my mind that a network of systems is higher, but then a network is considered a structure within the system. When designing a top-down model, the highest and top-most design is always the whole system, paper, computer or whatever. However, as concepts and operating systems develop, I'd assume the application is the highest, with accessible operating system objects a structure withing the application. The reason being the operating system treats each application as a stand-alone program with its own memory space and so on. Should anything crash, it is this protected enclosure of a sandbox land that is effected, not the system as a whole.
83834
Multi level means on more than one level. Degenerative changes refers to changes in the spine, you didn't specify if it is degenerative disc or what. It can be in the vetebral bodies, which would include arthritic changes, changes brought on by osteoporosis or any number of things. If it is degenerative disc then it means that you are probably over the age of 40 and as we get older everything, including the discs in our spines, looses elasticity. So multi level degenerative changes in your back could be something, or could be nothing. Ask your doctor for clarification.
82159
TierraForest Enterprises
1002872
? ?? What do you mean? Like SSD, SS, SSI?
1051953
A dual bus simply means there are 2 data pathways insted of one.\n\nUsualy used to keep bottlenecks down, sometimes also used as a method of reduncancy.