HT2729 what exactly is the difference between regular video and video playback?

i am wanting to purchase a black video playback ipod with 30 gb, the fifth generation and before i get it i would like to know all the details about video playback

i am wanting to purchase a black video playback ipod with 30 gb, the fifth generation and before i get it i would like to know all the details about video playback
http://support.apple.com/kb/SP41

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What exactly is the difference between enqueue,latch & lock

Can someone explain in simple words (with example if possible) what exactly is the difference between enqueue,latch & lock?
I have gone through documentation & other links,but just not able to figure out the exact & clear difference between these three..
Cheers,
Kunwar

In addition to links provided by Sb and nice explanations by Aman, i would like to add below :
1.Latches and enqueues are lightweight serialization devices used to coordinate multi-user access to
shared data structures, objects and files.
Latches are locks that are held for extremely short periods of time, for example the time it takes to modify
an in-memory data structure. They are used to protect certain memory structures, such as the database
block buffer cache or the library cache in the shared pool (as described in Chapter 2, Architecture). Latches
are typically requested internally in a ‘willing to wait’ mode. This means that if the latch is not available,
the requesting session will sleep for a short period of time and retry the operation later. Other latches may
be requested in an ‘immediate’ mode, meaning that the process will go do something else rather than sit
and wait for the latch to become available. Since many requestors may be waiting for a latch at the same
time, you may see some processes waiting longer than others. Latches are assigned rather randomly, based
on the ‘luck of the draw’, if you will. Whichever session asks for a latch right after it was released will get it.
There is no line of latch waiters, just a ‘mob’ of waiters constantly retrying.
Oracle uses atomic instructions like ‘test and set’ for operating on latches. Since the instructions to set
and free latches are atomic, the operating system itself guarantees that only one process gets it. Since it
is only one instruction, it can be quite fast. Latches are held for short periods of time and provide a
mechanism for clean-up in case a latch holder ‘dies’ abnormally while holding it. This cleaning up
process would be performed by PMON.
Enqueues are another, more sophisticated, serialization device, used when updating rows in a database
table, fro example. They differ from latches in that they allow the requestor to ‘queue up’ and wait for
the resource. With a latch request, the requestor is told right away whether they got the latch or not.
With an enqueue, the requestor will be blocked until they actually attain it. As such, they are not as fast
as a latch can be, but they do provided functionality over and above that which a latch can offer.
Enqueues may be obtained at various levels, so you can have many ‘share’ locks and locks with various
degrees of ‘shareability’.
Source:Expert Oracle Database Architecture by Thomas Kyte
2.Good PPT at http://nocoug.org/download/2001-05/latches.ppt
3.Good PPT by Mark bobak at http://www.mi-oaug.org/Presentations/Understanding%20Locks%20and%20Enqueues.ppt
HTH
Girish Sharma

What exactly is the diff between main window and variable window

what exactly is the diff between main window and variable window in SAP script?

hi,
MAIN WINDOW :- In a main window you display text and data, which can cover several pages (flow text). As soon as a main window is completely filled with text and data, the system continues displaying the text in the main window of the next page. It automatically triggers the page break.
You can define only have one window in a form as main window.
The main window must have the same width on each page, but can differ in height.
A page without main window must not call itself as next page, since this would trigger an endless loop. In such a case, the system automatically terminates after three pages.
VARIABLE WINDOW :- The contents of variable windows is processed again for each page, on which the window appears. The system outputs only as much text as fits into the window. Text exceeding the window size is truncated; the system does not trigger a page break. Unlike constant windows, the page windows declared as variable windows may have different sizes on different form pages.
As far as the processing of the window contents is concerned, the system currently treats constant and variable windows alike. The only difference is that constant windows have the same size throughout the form.
hope this will be useful.
If useful then reward points.
with regards,
Syed

What would be the difference between sling:folder and nt:folder?

what would be the difference between sling:folder and nt:folder?

See,
As Nicolas said, there are some things that you can do only in a sling:folder type of node.
The "nt" means "Node Type", and a "node type: folder" is just a empty node that can be referenced as a organizational structure file folder. The "sling" prefix means that this one special folder belong to the type "Sling", in other words, that folder type node is built in the sling Framework structure and is constructed with some setting already, which I do not know to tell you. Take a look at "/libs/sling/nodetypes/sling.cnd" on you CRXDE Lite or CRXDE.
(I may be wrong about some details, eveything here is what I believe myself after some research and experience)

What exactly is the diff between client dependant and client independant te

Hi gurus,
What is the diff between client independant and client dependant term.. I initially had a confusion related to client independant and client dependant Transport requests, where else are these words applicable, do they apply to data as well, if so how? any links to help me understand the difference..
regards,
kishore

Hi Kishore,
Client Independant: These objects are not specific to any client. And it is universal which can be viewed,changed across the clients.
Client Dependant: These are the objects can be viewed, changed for the client for which it has been assigned. Other clients do not have access on these objects.
In SAP, all objects are finally stored as tables. "Mandt" is key field which determines whether the object is client dependant or not.
Client Independant transport requests will make the transported objects available across the clients. and Client dependent transport request make the objects available only for the client mentioned by field "Mandt"
Regards,
Dinesh D

What exactly is the difference between these two lenses?

CanonEF-S 55-250mm f/4-5.6 IS STM Lens
CanonEF-S 55-250mm f/4-5.6 IS II Lens
I'm stuck between a rock, and not sure what my best option would be...any help is greatly appreciated!!!

The difference is in the type of motor used to focus the lens. The focus motor in STM lenses are more or less silent to the camera's audio system. This is important when shooting video but not for still photography. This may help.
http://photo.stackexchange.com/questions/24109/what-does-stm-mean-on-a-canon-lens
"A skill is developed through constant practice with a passion to improve, not bought."

What exactly is the difference between the new photos app for mac and iPhoto? i'm very confused...

Ever since i've bought my macbook pro i used iPhoto to organize my photos. Now apple added this new photos app and i don't really understand what is it meant for? can someone please explain me the difference? I'm very confused about the purposes of both apps....

Now apple added this new photos app and i don't really understand what is it meant for? can someone please explain me the difference? I'm very confused about the purposes of both apps....
Photos is a completely new designed photo application, designed for Yosemite and the MacOS X versions to come. Many differences are under the hood. It uses the new system libraries and frameworks for more efficient image processing on the new powerful macs, like the mac pro, it is extensible by app extensions, if other developers will add functionality, and most important, it brings integration with iCloud Photo Library. With Photos you can store your photo library in iCloud and sync it across all devices.
Some features are still missing however, and you can continue to use iPhoto, if you like. Or create a small Photos library for testing and explore Photos, while keeping your main libraries in iPhoto.

What exactly is the difference between :"Refresh" and "Expand All"?

They seem to do the same thing most of the time. What is the difference?

Hi Dermot,
Well, for a report that uses no expansions the time it takes for Refresh and Expand All should be about the same. Maybe a little bit faster for Refresh. But if your report does have expansions, Refresh should be significantly faster.
Here is the list of what happens to each EVDRE in your workbook when you click the "Expand All" button: [http://help.sap.com/saphelp_bpc75_nw/helpdata/en/fb/b03d0099e8428d95eb7de2c964cf18/frameset.htm] It has 8 steps. I believe that when you click the "Refresh" button it only executes steps 3 and 4 (not completely sure about that, but you get the point - it doesn't do everything).
Expand All can get especially problematic when you have a workbook with a large number of EVDREs. In this case, a nice option is to right-click on the worksheet and take a look at the options under the top menu item. One of the options is to expand only the active sheet, which can save you a lot of time.
Cheers,
Ethan

What is the difference between regular FaceTime and the Mac App Store FaceTime?

The one in the App Store costs €0,89. How is this one differend?

Yup.
The difference is about a bit.
It's a bit that, when set, allows a database to be in a permanent state of recovery, allowing repeated applications of redo. When a particular recovery operation has finished applying its quota of redo, the database sits there waiting for the next dollop.
A normal controlfile doesn't have that bit set, and when you do 'recover database' to it, it gets to the end of the redo stream and says 'Media Recovery Complete'. No further redo can then be applied to that database, meaning you can't keep a normal database in a permanent state of being recovered.

Can anyone clarify what exactly is the difference between the new Airport Express and the Airport Extreme?

The specs look virtually identical and the form factor is also much the same.
The price is not.

Extreme: three LAN ports, Express: one (four total Ethernet ports vs. two, respectively)
Extreme: Gigabit Ethernet, Express: 10/100 base-T
Only the Express can stream iTunes (AirPlay) music
The first two limitations make it resemble the original AirPort Extreme. Dual band is a big plus though, and will go a long way toward alleviating a lot of people's problems with wireless interference.
The form factor is different as the new Express is not designed to be mounted directly to a power receptacle. Also, the new one allegedly supports 50 clients whereas the 802.11n Express was only 10. However, those never seemed to be limitations in actual use.
http://www.apple.com/wifi/

The difference between regular ram and "apple ram" from 3rd parties

So I made a previous post on the Macrumors forums regarding whether the RAM issues in the Unibody MacBook have been resolved or not: http://forums.macrumors.com/showthread.php?t=692653
It seems that most people who bought OCZ ram have had no issues what so ever. I am located in Canada so a store like CanadaComputers is great for me because I can go pick it up instead of having it delivered and pay shipping costs (as opposed to Newegg.ca). On their website, they have two modules with similar specs expect one is found in the Apple ram section and the other is in the regular ram.
Apple Ram (OCZ)
http://canadacomputers.com/index.php...80&cid=RAM.188
Regular Ram (OCZ)
http://canadacomputers.com/index.php...id=RAM.187.778
When comparing the specs, the only difference I can see is that the CL on the Apple ram is 7-7-7-20. The CL on the regular ram is CL 8-8-8-27.
The price difference between the two is $57! OCZ's website confirms that one is made specifically for Apple Notebooks and the other is just regular.
Can anyone explain what CL is and whether it is something that needs to be taken into consideration. Thanks.

That only needs to be taken into consideration if you're using applications which are very demanding about performance, which aren't intended for usage by home users. Click here for more information.
(43042)

What exactly it the difference between iTunes Wifi-Sync and iCloud Backup?

Okay, i do not yet have a mac, only an iPod touch, but am (hopefully) buying a mac soon (MacBook Pro to be specific). I buy all my music etc on my iPod, and am currently use iCloud sync which i have all the buttons in the ON position. Anyway, i am rather confused after reading alot about the two methods of syncing there exact differences. When i get my mac can i use both- for reasurance or do i have to choose one? Also, does iTunes wifi sync my photos and videos (thats photos ive taken and videos ive made/filmed) and does iCloud do this. Also if i use both photostream and iCloud/iTunes for my photos, will that create double ups of all my photos?
Thanks
The_Ele4ant

Wi-Fi sync works in the same way as syncing over a USB cable, albeit more slowly, and can be used when your iTunes library can see your device on your local network.
iOS: Syncing with iTunes
iCloud backup saves the settings and documents from your apps to the cloud instead of your own computer. It seems you either backup to your computer or to iCloud, but not both, at least not on a regular basis. You may still be able to trigger a local backup manually when using iCloud for backup.
iCloud: Backup and restore overview
Photostream operates independently of either of the previous features to move your pictures to your computer and other iOS devices when in range of any working Wi-Fi connection.
iCloud: Photo Stream FAQ
tt2

What exactly is the difference between...

....and iPad with 'retina display' and one without? Apart from the slight price difference.

Click here for information; the page is for the third generation iPads, and there are more differences with the fourth generation ones.
(103071)

What's the difference between reguler KDE and KDEmod?

Hello all,
In two weeks I get my new laptop, which will be capable of running Arch and KDE ( as my current computer isn't, somehow it only runs Fedora w/ Gnome)
Since I really like Arch and already got it working on Virtualbox, I want to install it on my new laptop. I'd like to get it working with KDE, but I noticed Arch also has KDEmod. I already searched the forums but couldn't really find an answer to my question: What is the difference between regular KDE and KDEmod and which one is better for me to use?
Thanks in advance!

Allan, i forgive you for your poor paragraph construction and sorry for me being a bit peeved
However, i know you have read more from the IRC log than just that one sentence by me...
Allan wrote:
From the IRC log, I do not think that conclusion is too far off, especially if you are considering Arch-Stable as your base... So saying "plain wrong" seems... well... plain wrong. Especially given the irc log:
<funkyou> in one sentence: to do what we really want to do, we need a stable platform.
So why not showing the whole picture and clear this up:
<funkyou> ok, to start: i think at least some of you have noticed that arch linux is a fine platform for what we want to deliver, but there are some little "annoyances"
<funkyou> mainly:
<funkyou> -.so bumps every few weeks
<funkyou> -the general "freshness"
<funkyou> -a lot of manual interaction needed (sometimes)
<funkyou> everyone can see these problems when looking at the forums, _most_ of them are related to updates
<funkyou> in one sentence: to do what we really want to do, we need a stable platform.
Makes more sense now? Its not that Arch is too unstable, its just that we cant keep up will all the changes... And this is not Archs "fault" nor anyone elses fault, its just going too fast for us. Most annoying or severe bugs in our tools are there due to upstream updates. And the reasons are not really the .so bumps (which are mostly solved by a simple rebuild) but also constantly changing apis and stuff. This is not a big problem in KDE (they keep their apis clean), but a big one when it comes to other stuff like parted, to give an example. And this is our main problem, we need to constantly adapt our code to upstream changes.
This even resulted in a repo with modified or "frozen" Arch packages just to keep our liveCD going, and now we are looking for solutions for this problem, and "stable" snapshots seem to be one way... Oh, and if we would do this (there is nothing announced yet), we would do our own snapshot every X months because ArchStable seems to be a dead project. We also considered cooperating with the ArchServer guys, but their stuff is really made for servers, so even while their project is really nice its not really an option for us.
Well, we'll see what we will do during the next months, now we are still testing and evaluating some solutions... Oh, and people, please stop any "we dont need another ubuntu" complaints...

What is the difference between Genius Mix and Genius Playlist?

Yeah, what is actually the difference between Genius Mix and Genius Playlist?
G.P. starts with a song I select and teams up with songs that go with it while G.M. is only songs that go well together, is that it?
A G.P. that I like can be saved and altered, but G.M.´s seems to be volatile? Can I see all the songs in a G.M.? All I can find, is the possibility to click Next and Previous.
Thanks

Genius Mixes are 'Genre' based groups of music.
Genius Playlists are songs that go together based on other people's playlists, they can be from any Genre.
You can't see what will be playing in the Genius Mix list.
Message was edited by: Ian Parkinson

HT2729 what exactly is the difference between regular video and video playback?

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