Architeture of the MAC OS

Hey people!
I have 1 question!
Somebody knows the architeture of MAC Operation System?
I am make a work on mac and i need help, i am not to find nothing...
They forgive my English, I am not good in English language...
thanks!!

Thanks for the help!
You are right. Not explained myself correctly.
I'm doing a job at the university.
My work is about operating systems.
Unable to understand the architecture of the operating system (MacOS X), and to understand the scheduling, file system and file management.
Can you give me some bibliography.
I'm Portuguese .. You understand the Portuguese language?

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15" i7 Macbook Pro from early 2011.takes the mac laptop two or three tries to boot successfully. It would turn on, show gray screen, shut down, turn on again, show gray screen, shutdown, and then turn on, show gray screen, before it can finally get

Hello All,
I have a 15" i7 Macbook Pro from early 2011. The past few weeks, it has been getting increasingly difficult to get on my computer. It takes the mac laptop two or three tries to boot successfully. It would turn on, show gray screen, shut down, turn on again, show gray screen, shutdown, and then turn on, show gray screen, before it can finally get to the dark gray log-in screen. Even when I finally get logged in to start working, thinking it would be okay now, it shuts down randomly.
I've ruled out the possibility of a software problem because I've just done a clean re-install of Mac OS X Mavericks on my computer just yesterday.
I did upgrade the RAM recently, about a month and a half ago, from 4GB to 16GB, I went to the apple store four days after that upgrade to have them do a hardware test, and clean the inside of my laptop, which helped with previous heat issues. When they did the hardware test, the hardware was all registered as fine from their system.
I've tried resetting the SMC, PRAM, and doing the internet recovery hardware test, but to no avail. I thought I could at least find out what parts needed to be replaced from the hardware test but it seems that when the hardware test is almost finished, the computer just shuts down, So I am unable to see the results.
My computer is also having battery issues, under battery condition, it says "replace now," parts have been ordered, waiting for arrival. But if the battery health is low, it should still boot up fine, it would just hold a significantly less charge.
Could this be a hard drive issue?
Has anyone had similar symptoms and how was it resolved?
Does anyone know what I can do to alleviate this issue?
I haven't had time to take it to Apple because I'm currently taking a 21 credit semester academically. I'm an art and design student so my computer is basically the bane of my existence. Help! Any constructive advice is welcomed!
Thank you so much for your input!
-Christina C.

Problem description:
The Hard Disk is failing.
EtreCheck version: 2.0.11 (98)
Report generated November 4, 2014 at 7:59:28 AM EST
Hardware Information: ℹ️
MacBook Pro (15-inch, Early 2011) (Verified)
MacBook Pro - model: MacBookPro8,2
1 2.2 GHz Intel Core i7 CPU: 4-core
16 GB RAM Upgradeable
BANK 0/DIMM0
8 GB DDR3 1600 MHz ok
BANK 1/DIMM0
8 GB DDR3 1600 MHz ok
Bluetooth: Old - Handoff/Airdrop2 not supported
Wireless: en1: 802.11 a/b/g/n
Video Information: ℹ️
Intel HD Graphics 3000 - VRAM: 512 MB
Color LCD 1440 x 900
AMD Radeon HD 6750M - VRAM: 1024 MB
System Software: ℹ️
OS X 10.9.5 (13F34) - Uptime: 0:3:43
Disk Information: ℹ️
TOSHIBA MK7559GSXF disk0 : (750.16 GB)
S.M.A.R.T. Status: Verified
EFI (disk0s1) <not mounted> : 210 MB
HDV4 (disk0s2) / [Startup]: 749.30 GB (712.10 GB free)
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
MATSHITADVD-R   UJ-898
USB Information: ℹ️
Apple Inc. FaceTime HD Camera (Built-in)
Apple Inc. BRCM2070 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Inc. Apple Internal Keyboard / Trackpad
Apple Computer, Inc. IR Receiver
Thunderbolt Information: ℹ️
Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
Mac App Store and identified developers
Kernel Extensions: ℹ️
/Library/Application Support/Avast/components/fileshield/unsigned
[loaded] com.avast.AvastFileShield (2.1.0 - SDK 10.9) Support
/Library/Application Support/Avast/components/proxy/unsigned
[loaded] com.avast.PacketForwarder (1.4 - SDK 10.9) Support
Launch Agents: ℹ️
[not loaded] com.adobe.AAM.Updater-1.0.plist Support
[loaded] com.avast.userinit.plist Support
Launch Daemons: ℹ️
[invalid?] com.adobe.SwitchBoard.plist Support
[loaded] com.avast.init.plist Support
[loaded] com.avast.uninstall.plist Support
[loaded] com.avast.update.plist Support
[invalid?] com.perion.searchprotectd.plist Support
User Launch Agents: ℹ️
[invalid?] com.avast.home.userinit.plist Support
[loaded] com.google.keystone.agent.plist Support
[invalid?] com.jdibackup.ZipCloud.autostart.plist Support
User Login Items: ℹ️
None
Internet Plug-ins: ℹ️
AdobePDFViewer: Version: 10.1.1 Support
QuickTime Plugin: Version: 7.7.3
JavaAppletPlugin: Version: 14.9.0 - SDK 10.7 Check version
Default Browser: Version: 537 - SDK 10.9
User Internet Plug-ins: ℹ️
TroviNPAPIPlugin: Version: 1.0 - SDK 10.9 Support
Google Earth Web Plug-in: Version: Unknown
Safari Extensions: ℹ️
Avast Online Security
Trovi Search for Safari
3rd Party Preference Panes: ℹ️
None
Time Machine: ℹ️
Time Machine not configured!
Top Processes by CPU: ℹ️
      16% mds
      7% WindowServer
      1% loginwindow
      1% fontd
      1% com.avast.daemon
Top Processes by Memory: ℹ️
120 MB com.avast.daemon
86 MB Google Chrome
52 MB Finder
52 MB WindowServer
41 MB Google Chrome Helper
Virtual Memory Information: ℹ️
13.45 GB Free RAM
1.34 GB Active RAM
944 MB Inactive RAM
1.43 GB Wired RAM
1.11 GB Page-ins
0 B Page-outs

I want to use the Mac more, I really do, but-

Admittedly, I’m a new Mac user (purchased Macbook Pro last October), and I’m really trying to get acclimated to it. I WANT to use it more, but I hit a roadblock at every turn. I’ll keep my issues limited to iMovie in this thread of course, but it seems like every step I take with a Mac is a struggle and more expensive than to do these same, relatively simple things on a PC. It never seems to do exactly what I want. Very simple features seem to be left out in order to entice you to purchase add-ons, plug-ins, or a different package more suited to the task (i.e. Final Cut).
I’m simply creating fancy slideshows using still photographs with iMovie, and find it grossly lacking in features. It nice for a basic introduction into slide show presentation software, but if you really would like to do something fancy, this software doesn’t cut it. I’m having “Ken Burns” limitations, like exactly what is posted here http://discussions.apple.com/thread.jspa?messageID=5222444&. There are only 12 transitions to choose from…12, which I can’t believe (even the utterly simplistic Windows Vista Movie Make has 63). Many times the playback seems “choppy” when played on the Mac, etc etc. I won’t bore you with more issues.
Now I understand any packaged photo presentation program (with iLife) is not going to have all the features as one that you would purchase exclusively for that function, so what are my alternatives?
1) Purchase Final Cut Express for $200, which has gotten very lukewarm reviews to put it mildly. Seems to be overly complicated and you cannot add sound tracks ?!? (I didn’t read all the details on this one).
2) Purchase Final Cut Studio for $1300. Not going to happen, way too pricey.
3) Purchase over $500 in GeeThree Volumes 1 through 10 (http://www.geethree.com/slick/), which I heard is about the best alternative to spicing up the iMovie software to make it satisfactorily functional (am I wrong in this assessment?)
4) Stick with my PC and run ProShow Producer for $250 (http://www.photodex.com/products/producer). This is a super program which has almost all of the features you could possibly want, and is very simple to use. The only thing it doesn’t have is a nice DVD menu system, which I can live with.
So someone, please give me some suggestions. Am I not seeing the forest through the trees? Are there any better alternatives? I’d even entertain purchasing another Mac software package if there is one out there that someone knows does a better job.

Hi Lobster1071,
It is a shame when you can create a slideshow with Spotlight or the Finder yet an app intended for such can't get the job done. Once upon a time iMovie had about 15± transitions and 50± effects so it is not that you can't see the forest through the trees but that the forest has been clear cut and it's a big pile of brush and wood chips that is blocking your view. I don't believe anyone at the moment has any plug-ins for transitions or effects for iMovie 08 so if that was something you were looking for you would have to download the iMovie HD 6 available to those who thought the were buying a motion picture app.
Apple's blurb about iMovie 08.
Quick ways to add polish.
iMovie is designed to make everything simple — including the professional touches that help your movie stand out even more.
Photos and music.
Use the iLife Media Browser to bring photos into your movie from iPhoto. Summon the real-time, redesigned Ken Burns effect to add motion and zooms to still photos like a pro
So much for simplicity, maybe they mean we are supposed to have a seance to summon KB from eternal rest to be able to get this to work. Who knows? It's not too friendly in iM 6 either.
Graphic Converter is another powerful app that has many uses and you can create a slideshow with a KB effect that is a has a decent pan and zoom. Zoom is what they call it in GC. $20± US it is truly a bargain as it is a great tool to have even if iMovie was worth the disk space it consumes. In addition to pan and zoom you can combine video and still images and it provides you access to many other QuickTime transitions and effects you can then export it to a QT movie and to iDVD if you want.
The learning curve is a bit steep but support for registered users has always been very good and once you have the hang of it it is easy to include images of any size and shape with the ability to easily automate the tasks that you find yourself repeating quite often. If you need to rotate, crop or edit for any reason you can do that right within the same app. You can try with full functionality to check it out @ http://www.lemkesoft.com/ I do find that I use it most efficiently/productively in conjunction w/ QT Pro but don't think that is really required unless you want to have more than a two channel stereo track as GC allows the inclusion of an audio track but no editing of it. If you want multiple tracks or sound FX etc. that would still have to be done in GarageBand or elsewhere and saved to a single audio file.
iWork is also very capable of producing halfway decent slideshows with more features than iMovie as well. but I don't think I'd recommend going out and buying it unless you're looking for something to replace MS Office or something similar but there should be a 30 day trial already on you Mac or Install disc so you can try it out and see if it will work for your needs. If nothing else you will find out how much frustration you can really tolerate.
Sweet Polly

I have one apple ID for my MAC and another used for both my iPhone and IPad. Purchases from iTunes don't appear on either my iPhone or iPad only only the MAC. How do I sync the two IDs?

I have one Apple ID for my MAC and iTunes account and another that is used for both my iTunes and iPad. When I purchased music from iTunes using the Mac ID, the music isn't available on my iTunes or iPad. Neither lets me change my ID so how do I fix this issue so I can play the music on all three?

Hello chlanli
You would need to use one Apple ID for purchases in order to get them across all of your devices and computer. If you want you can use one Apple ID for purchases and the other one to sync personal data. The article below will explain further.
Using your Apple ID for Apple services
http://support.apple.com/kb/ht4895
Regards,
-Norm G.

HT1296 I already have an itunes account on my laptop but have been setup on a mac and have songs that have not been purchased from the itunes store, I cannot get the songs from my iPhone onto my itunes account on the mac. how can I do this?

I already have an itunes account on my laptop but have been setup on a mac and have songs that have not been purchased from the itunes store, I cannot get the songs from my iPhone onto my itunes account on the mac. how can I do this?

You copy them from your old computer or your backup copy of your old computer.
The iphone is not a backup/storage device.

I would like to know if you have to back up a macbook hard drive, can I use a external hard drive that has been previously used to back up several pc 's, or is it best to have a separate external drive for the Mac?

I would like to know if you have to back up a macbook hard drive, can I use a external hard drive that has been previously used to back up several pc 's, or is it best to have a separate external drive for the Mac?

In the Mac side of things, backups usually come in two flavors: clones or incrementals.
A bootable clone is a bit-for-bit copy of all essential files in the startup volume. If using the Lions, clones can be made using CarbonCopyCloner or just plain old Disk Utility. These backups represent the safest protection of your info, but take the longest to do. Recovery is an inverse process: you copy the clone back into the internal drive.
Incremental backups start with a complete backup of the startup volume and only copy whatever changed from the previous run. OS X includes the fully integrated Time Machine backup utility to do this. It is extremely easy to do and takes the least amount of time. Recovery is another matter altogether since you have to start with a freshly installed instance of the OS and have to apply all intervening backups to bring the result to the latest saved version.
As for where the backup takes place, the recommended media is an external dedicated drive or drives connected via the fastest interface available on your Mac: Thunderbolt, USB3, Firewire, or USB2. Network-based backups, wired or wireless, are attractive but may not offer the same performance and hence take longer. Also important to note that the entire drive need not be completely dedicated to a single backup. The Mac's EFI firmware infrastructure allows for an unlimited number of partitions on a hard drive and each can be used for either type of backups.
Holler if you need specifics on how to do each. This was just an executive summary.

I have a MacBook Pro and an 1TB WD my passport for mac. I bought a second hard drive to act as back up and when I went to do this the original passport won't mount. It is showing in disc utility but it will not repair. I am told the mac cannot repair it.

I have a MacBook Pro and an 1TB WD my passport for mac. I bought a second hard drive to act as back up and when I went to do this the original passport won't mount. It is showing in disc utility but it will not repair. I am told the mac cannot repair it and I need to back up the files and then restore the hard drive. But I can't open the hard drive to move the files onto the new one!
Help me please. I am not very technical so please answer as if I have no clue!! This hard drive has my iPhoto on it and all my pictures of my son, wedding and my current photography course so I desperate to get it back!
Any help will he appreciated!

disk0s2: I/O error.
disk0s2: I/O error.
The MBP's disk is damaged and requires replacement.
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Once and for all: MSN VIDEO chat on the mac... can it work?

the situation: my friend in France uses an msn account on a PC with the latest version of windows live or some such. I'm in the states on my blackbook. I set up a shiny new msn account, hoping to connect up to him. I've tried adium, msn mac, mercury, and ichat, and nothing will let me connect to his cam, or him to mine.
so here's the golden question: can a mac user, as of right now, video chat with a PC user through the MSN network? if so, and if this is a waste of a new post, please direct me to the instructions. please do not tell us to sign up for AIM accounts, like I saw in another post.
if it's not possible, please explain why not. is it microsoft's msn client for the mac that's about 3 versions behind the pc one? is it a protocol issue? why is this so impossible? is it a social thing, i.e. europeans use msn and PCs and americans use AIM/yahoo and macs? I'm baffled.

It IS possible for a Mac user to do video with people using MSN/Windows Live messenger on Windows, but not possible to do audio.
To do video you will need either Mercury or aMSN. I haven't used either of these, and wouldn't touch the MSN service with a barge-pole, so can't give instructions on how to set it up, but both of them do have video capabilities. As i said though, neither do audio, so unless both participants know sign-language it may be of limited use.
The reason why it is not possible is both a protocol issue and a Microsoft one.
MSN uses secret, proprietary protocols for their service which means that anyone wanting to interoperate with the service has to reverse engineer the protocols and then implement them (and Microsoft can of course move the goal posts at any time by changing the protocols in a new version).
It's a Microsoft problem because they simply aren't interested in developing no cost applications for the Mac, as evidenced by the dropping of both IE and Windows Media Player for OS X (it wouldn't surprise me if Messenger gets dropped by the end of the year), so MSN Messenger lags well behind the Windows version and lacks many of its features.
The situation with MSN/Windows Live Messenger is unlikely to change until Microsoft switches to the IETF standard for IM, XMPP. It may be years before Microsoft switches but it will have to eventually as XMPP is the daddy in enterprise IM and becoming increasingly popular in the consumer space with services such as Google Talk, Gizmo (IM portion) and Live Journal (among thousands of others) utilising it.
Fortunately iChat already supports XMPP (Jabber) for IM, although doesn't yet use the XMPP standards for video or audio (though i'm still hopeful this will change with Leopard), so once MS switches you should be able to set it up in iChat. But like i said, it may take years before all the major IM companies converge on XMPP as the protocol of choice.
Anyway, if you're just interested in video AND audio chats between Windows and Mac OS X you don't have a lot of choices. There's the AIM/Trillian Pro <-> iChat route that you don't want to take, there's the Skype route (much as i loath Skype) which seems to be the preferred option among other forum posters here, and there are a few other alternatives too which i haven't paid much attention too, but there is currently NO way to do both video AND audio between Mac OS X and Windows using MSN/Windows Live.
Or i suppose you could wait for Leopard and hope that Apple provides MSN functionality but i suspect you'd be disappointed.
Not the answer you were looking for i'm afraid but i hope my post helps you find an alternative solution. Don't forget to send feedback to Microsoft and demand they switch to XMPP in MSN/Windows Live Messenger. The more requests the better. ^_^

My MacBook pro will only load in safe mode with blue screen then freeze, but I can boot windows up fine and access all info on the mac side. Can anyone help?

Hi all,
My MacBook pro was running fine then it went very slow, I got the spinning world but it would not do anything. I tried to restart but it had frozen, so I turned off the computer by the power buttton. Now it won't boot up, it justmfreezes with a blue screen in safe mode. I have tried booting isank blue user mod and running /sbin/fsck -fy and a couple of other suggestions from various discussion boards but nothing works. I just tried booting up in windows and it works fine, with access to the mackintosh HD.
Any ideas on how to fix the mac side??
Thanks in advance!

Sorry rubbish predictive text.i meant to say I tried booting in single user and running /sbin/fsck -fy

I have Logic on my iMac and want to install it on my new mac book but my mac book doesn't have a dvd drive. I tried to download the upgrade but it looks for an older version. How do I get Logic on the Mac book ?

I would like to install logic on my new mac book but there is no dvd drive. I tried to downlaod the upgrade but that didn't work. How do I download it for the first time?
Thanks!

You can only use the App Store version to reinstall on your new Mac if you bought Logic via the App Store in the first place.... and then it will appear under the Purchases tab in the Mac App Store App so long as you are signed in using the same Apple ID you used to purchase Logic via the App store in the first place.
If you bought the DVD edition of Logic Studio then you must initially install using those original DVDs to begin with and then update to the latest version of your version of Logic via software updates.
No DVD drive? Buy an external one.. Amazon do a very cheap basic one that works well..
or...
Use Remote Disk if you still have your older Mac which has a built in DVD drive...
http://support.apple.com/kb/HT5287?viewlocale=en_US&locale=en_US

How to I get a link with a "Mail to" address to open up a Compose window in my Yahoo mail, rather than in the Mail progrom on my Mac. I do not use the Mac Mail program.

How to I get a link with a "Mail to" address to open up a Compose window in my Yahoo mail, rather than in the Mail progrom on my Mac. I do not use the Mac Mail program.
== This happened ==
Not sure how often
== always

Thank you, "the-edmeister" -- You render a great service, one that lifts my spirits.
Your answer also taught me to be a little more persistent, as I had started looking at Preferences, and just didn't notice the icons (including Applications) at the top of that window that would have led me to my answer.
Dave

I have snow leopard. Using iCloud, I an receive mail on my mac, but suddenly, I am no longer able to send email from the mac. I can still send it from the icloud web site. How do I regain the ability to send email from the mac?

I have snow leopard. Using iCloud, I can receive email on my mac, but, suddenly, I am no longer able to send email from the mac. I can send it from iCloud online. Any thoughts on how to regain the abilty to send email from my mac? Thanks.

Install ClamXav and run a scan with that. It should pick up any trojans.
17" 2.2GHz i7 Quad-Core MacBook Pro  8G RAM  750G HD + OCZ Vertex 3 SSD Boot HD 
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How do I download Adobe Flash Player on my MacBook Pro? It says that I have to disable my antivirus software but I never installed one. Does it come with the Mac in the first place?

How do I download Adobe Flash Player on my MacBook Pro? It says that I have to disable my antivirus software but I never installed one. Does it come with the Mac in the first place? If so, how can I disable it or get Adobe Flash Player?

That message is just a standard one issued, mainly for Windows users, you can disregard it if you didn't install any anti-virus. (OS X has one installed by Apple that doesn't interfere)
It's just some forms of anti-malware are really paranoid and lock the entire machine down. (like Norton)
If you need assistance installing Flash
How to install/uninstall Flash, fix problems
How to uninstall/install software on your Mac

I have itunes set up on a PC with all my music, apps, etc. I want to stop using PC and move my iTunes and files to a Mac I bought and synch my iPhone with the Mac. Can I just synch iPhone with Mac iTunes and will it copy all my stuff onto Mac, or will I h

I have itunes set up on a PC with all my music, apps, etc. I want to stop using PC and move my iTunes and files to a Mac I bought and synch my iPhone with the Mac. Can I just synch iPhone with Mac iTunes and will it copy all my stuff onto Mac, or will I have to copy files from PC onto Mac?

Here are some of the links to get you started.
https://discussions.apple.com/thread/3727530?start=0&tstart=0
http://support.apple.com/kb/HT4527
http://www.macworld.com/article/1146958/move_itunes_windows_mac.html

Architeture of the MAC OS

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