I downloaded a program, and to run it without the CD I need to somehow use a file that came with the download, but I have no idea how to open the file and apply it to the program. It’s a .app.sit file and when I double click on it it opens in text edit and is just a bunch of gobbledigook, funny characters and stuff.

Anyone know what I’m talking about or what I need to do? Sorry for the vagueness, I’m really not very tech savvy.

Dec 29, 2020 In this case, the state of your system could be contributing to software instability. One common cause is a lack of available storage. Your Mac needs free space to function. Both the operating system and third-party applications swell and contract their use of storage over time. So, first, make sure your Mac has enough free space. Got white screen and am running my mac pro on an external drive with the down-loaded files from the internet. This is, so far, how i start my mac and did my work. As i tried to fix my mac so it will run the normal way, after i did the cmd-s i got a message that i have incorrect number of thread recods. The number is 4, 22879. It did few checks. Nov 23, 2020 For example, Nvidia GTX 750 Ti can't work with Mac OS X earlier than Yosemite. After such a software update, Mac is not working, or the Mac or MacBook stuck on loading screen after macOS update. Once the third-party software and hardware on your Mac won't work with the latest macOS, your Mac won't turn on,or appears a pink screen on your Mac. If you have a friend, family member, or co-worker that also has a Mac, you could try linking the two Macs in targeted disk mode and try to repair the disk via the Mac that doesn’t have issues. Another option is to use a third-party tool like Disk Warrior to assess your Mac–we’ve used it in the past, especially on Mac OS X with success. Got white screen and am running my mac pro on an external drive with the down-loaded files from the internet. This is, so far, how i start my mac and did my work. As i tried to fix my mac so it will run the normal way, after i did the cmd-s i got a message that i have incorrect number of thread recods. The number is 4, 22879. It did few checks.

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13 Answers

.sit is less compressed than a .sitx. .sit is pretty much the mac version of .rar or .zip

You can do it with The Unarchiver. It’s free with no hassles and does the job. Stuffit, the free version is supposedly “free” but they want your credit card info even to get the free version and that’s kind of messed up.

Thanks guys, I downloaded stuffit without adding any credit card info, so I used that and it turned it into just .app so I can open it buuuuut… it still doesn’t work with the program I downloaded. It says it cannot find the required resource and to reinstall the original program. I did that, but then the same thing came up when I opened the .app file. So the actual program still won’t open without a CD. Any ideas?

@shrubbery Any ideas???? Really, try The Unarchiver. Did you even try it, darling????? I downloaded it today because I had some .sit files I needed to open. It worked; that’s all I can say. Right now I have a Mac mini running OS 10.6.6. and The Unarchiver worked fine. I haven’t used Stuffit for a while. How did you get it downloaded? I am usually so good about that kind of thing and I couldn’t see how to get around their nonsense.

Here, you can download if from Apple’s website if that makes you feel better.

You’re trying to open a .sit file right?

I just tried Unarchiver. It did exactly the same thing as Stuffit except that nothing happens when I double click on it, whereas I actually get the message saying it cannot find the required resource after I double click on the one I got out of Stuffit.

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Did you try right clicking on the .sit file and the “open with” option? That’s how I always do it. It worked fine for me. What is the exact name of the file you are trying to extract? File name and extension… I want it all, don’t hold anything back. :-)

Edit: And are you sure it did nothing? Did you reload the directory in the finder? It’s somewhere, maybe. Did you get an error message with the Unarchiver or did it just seem like nothing happened? I do that all the time and then find that I’ve got like five copies of a file because I thought nothing had happened. :-)

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@shrubbery That kind of defeats the purpose of private messaging someone. Now we all know.

@XOIIO But you don’t know the deep dark private secrets that @shrubbery revealed to me in her “private message” and I will never, ever, ever, tell. :-)

Nothing uses .sit anymore. It was a Pre OS X thing. It is possible what you are trying to download is a Classic app and those are no longer supported in OS X 10.4 and above.

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Okay I finally got everything to work with a combination of Stuffit and Pseudo. Thanks so much for your help guys.

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Spinning Wait Cursor as seen in OS X El Capitan

The spinning pinwheel is a variation of the mouse pointer arrow, used in Apple's macOS to indicate that an application is busy.[1]

Officially, the macOS Human Interface Guidelines refers to it as the spinning wait cursor,[2] but it is also known by other names, including the spinning beach ball[3], the spinning wheel of death[4], the spinning beach ball of death,[5] or the ferris wheel of death.

History[edit]

A wristwatch was the first wait cursor in early versions of the classic Mac OS. Apple's HyperCard first popularized animated cursors, including a black-and-white spinning quartered circle resembling a beach ball. The beach-ball cursor was also adopted to indicate running script code in the HyperTalk-like AppleScript. The cursors could be advanced by repeated HyperTalk invocations of 'set cursor to busy'.

Wait cursors are activated by applications performing lengthy operations. Some versions of the Apple Installer used an animated 'counting hand' cursor. Other applications provided their own theme-appropriate custom cursors, such as a revolving Yin Yang symbol, Fetch's running dog, Retrospect's spinning tape, and Pro Tools' tapping fingers. Apple provided standard interfaces for animating cursors: originally the Cursor Utilities (SpinCursor, RotateCursor)[6] and, in Mac OS 8 and later, the Appearance Manager (SetAnimatedThemeCursor).[7]

From NeXTStep to Mac OS X[edit]

NeXTStep monochrome (2 bit)

NeXTStep 1.0 used a monochrome icon resembling a spinning magneto-optical disk.[a] Some NeXT computers included an optical drive which was often slower than a magnetic hard drive and so was a common reason for the wait cursor to appear.

NeXTStep color (12 bit)

When color support was added in NeXTStep 2.0, color versions of all icons were added. The wait cursor was updated to reflect the bright rainbow surface of these removable disks, and that icon remained even when later machines began using hard disk drives as primary storage. Contemporary CD Rom drives were even slower (at 1x, 150 kbit/s).[b]

Mac OS X (24 bit)

With the arrival of Mac OS X the wait cursor was often called the 'spinning beach ball' in the press,[8] presumably by authors not knowing its NeXT history or relating it to the hypercard wait cursor.

The two-dimensional appearance was kept essentially unchanged[c] from NeXT to Rhapsody/Mac OS X Server 1.0 which otherwise had a user interface design resembling Mac OS 8/Platinum theme, and through Mac OS X 10.0/Cheetah and Mac OS X 10.1/Puma, which introduced the Aqua user interface theme.

Mac OS X 10.2/Jaguar gave the cursor a glossy rounded 'gumdrop' look in keeping with other OS X interface elements.[9]In OS X 10.10, the entire pinwheel rotates (previously only the overlaying translucent layer moved).With OS X 10.11 El Capitan the spinning wait-cursor's design was updated. It now has less shadowing and has brighter, more solid colors to better match the design of the user interface. The colors also turn with the spinning, not just the texture.

System usage[edit]

In single-tasking operating systems like the original Macintosh operating system, the wait cursor might indicate that the computer was completely unresponsive to user input, or just indicate that response may temporarily be slower than usual due to disk access. This changed in multitasking operating systems such as System Software 5, where it is usually possible to switch to another application and continue to work there. Individual applications could also choose to display the wait cursor during long operations (and these were often able to be cancelled with a keyboard command).

After the transition to Mac OS X (macOS), Apple narrowed the wait cursor meaning. The display of the wait cursor is now controlled only by the operating system, not by the application. This could indicate that the application was in an infinite loop, or just performing a lengthy operation and ignoring events. Each application has an event queue that receives events from the operating system (for example, key presses and mouse button clicks); and if an application takes longer than 2 seconds[10] to process the events in its event queue (regardless of the cause), the operating system displays the wait cursor whenever the cursor hovers over that application's windows.

This is meant to indicate that the application is temporarily unresponsive, a state from which the application should recover. It also may indicate that all or part of the application has entered an unrecoverable state or an infinite loop. During this time the user may be prevented from closing, resizing, or even minimizing the windows of the affected application (although moving the window is still possible in OS X, as well as previously hidden parts of the window being usually redrawn, even when the application is otherwise unresponsive). While one application is unresponsive, typically other applications are usable. File system and network delays are another common cause.

Guidelines, tools and methods for developers[edit]

By default, events (and any actions they initiate) are processed sequentially, which works well when each event involves a trivial amount of processing, the spinning wait cursor appearing until the operation is complete. If processing takes long, the application will appear unresponsive. Developers may prevent this by using separate threads for lengthy processing, allowing the application's main thread to continue responding to external events. However, this greatly increases the application complexity. Another approach is to divide the work into smaller packets and use NSRunLoop or Grand Central Dispatch.

  • Bugs in applications can cause them to stop responding to events; for instance, an infinite loop or a deadlock. Applications thus afflicted rarely recover.
  • Problems with the virtual memory system—such as slow paging caused by a spun-down hard disk or disk read-errors—will cause the wait cursor to appear across multiple applications, until the hard disk and virtual memory system recover.

Instruments is an application that comes with the Mac OS X Developer Tools. Along with its other functions, it allows the user to monitor and sample applications that are either not responding or performing a lengthy operation. Each time an application does not respond and the spinning wait cursor is activated, Instruments can sample the process to determine which code is causing the application to stop responding. With this information, the developer can rewrite code to avoid the cursor being activated.

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Apple's guidelines suggest that developers try to avoid invoking the spinning wait cursor, and suggest other user interface indicators, such as an asynchronous progress indicator.

Alternate names[edit]

The spinning wait cursor is commonly referred to as the (Spinning) x (of Death/Doom).[d] The most common words or phrases x can be replaced with include:

  • Disk
  • (Beach) Ball[11][12]
  • (Rainbow) wheel
  • Pinwheel
  • Pizza[e]
  • Pie
  • Marble
  • Lollipop

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See also[edit]

Notes[edit]

  1. ^NeXT Optical Discs, Photo of the underside, showing the rainbow effect depicted on the icon (a then new type of media that was built into the early NeXT Cubes.)
  2. ^often an external AppleCD drive was used
  3. ^not a single bit was changed
  4. ^named after the Blue Screen of Death
  5. ^frequently encountered across Mac users forums as The SPOD

References[edit]

  1. ^'Mini-Tutorial: The dreaded spinning pinwheel; Avoiding unresponsiveness/slow-downs in Mac OS X'. CNet. 10 March 2005. Retrieved 16 July 2012.CS1 maint: discouraged parameter (link)
  2. ^'macOS Human Interface Guidelines: Pointers'. developer.apple.com. Retrieved 2018-01-24.
  3. ^'Troubleshoot the spinning beach ball'. Macworld. 2010-05-28. Retrieved 2020-03-22.
  4. ^'How to Fix a Spinning Wheel of Death on Mac'. MacPaw. Retrieved 2020-03-22.
  5. ^'Frozen: How to Force Quit an OS X App Showing a Spinning Beachball of Death – The Mac Observer'. www.macobserver.com. Retrieved 2020-03-22.
  6. ^'Using the Cursor Utilities (IM: Im)'. Developer.apple.com. Retrieved 2010-04-30.CS1 maint: discouraged parameter (link)
  7. ^'SetAnimatedThemeCursor'. Developer.apple.com. Retrieved 2010-04-30.CS1 maint: discouraged parameter (link)
  8. ^Macworld 2002-04-01
  9. ^Ars Technica Jaguar review: 'The dreading 'spinning rainbow disc' has an all new look in Jaguar'
  10. ^'WWDC 2012 – Session 709 – What's New in the File System'(PDF). Apple. Retrieved 2018-05-23. Applications SPOD if they don’t service the event loop for two secondsCS1 maint: discouraged parameter (link)
  11. ^Swain, Gregory E. (28 May 2010). 'Troubleshoot the spinning beach ball'. ((MacWorld)). Retrieved 16 July 2012.CS1 maint: discouraged parameter (link)
  12. ^Todd, Charlie (9 March 2012). 'Spinning Beach Ball of Death'. ((Improv Everywhere)). Retrieved 16 July 2012.CS1 maint: discouraged parameter (link)

External links[edit]

  • Apple Human Interface Guidelines: Standard Cursors from Apple's website.
  • Perceived Responsiveness: Avoid the Spinning Cursor from Apple's website.
  • Troubleshooting the 'Spinning Beach Ball of Death' Excerpt from “Troubleshooting Mac OS X” book where there are some information on how to deal with Spinning Wait Cursor problems.
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