Fist Mac OS
Within the Disk Utility program, First Aid is a functionfor checking and repairing file system errors.
On January 24, 1984, Apple Computer Inc.’s chairman Steve Jobs took to the stage of the Apple’s annual shareholders meeting in Cupertino, to show off the very first Macintosh personal computer in a live demonstration. Macintosh 128 came bundled with what was later called the Mac OS, but then known simply as the System Software (or System). Google Chrome OS (first shipped) 9front: 2011–07: Mac OS X Lion (v10.7) Linux 3.0 Android 3.2 HP webOS 3: AmigaOS 4.1 Upd. 3: 2011–08: 2011–09: Windows Phone 7. Mac OS X 10.6 Snow Leopard was the first version of OS X to be built exclusively for Intel Macs, and the final release with 32-bit Intel Mac support. The name was intended to signal its status as an iteration of Leopard, focusing on technical and performance improvements rather than user-facing features; indeed it was explicitly branded to.
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When to use First Aid
If your computer is crashing frequently, displaying cryptic errormessages, or exhibiting unusual behavior, you can use First Aid as afirst step to check for defects and, in many cases, repair them. If,however, your volume has suffered severe corruption, you may need touse other utility programs or repair methods.
Even if you are not getting errors, it is a good idea to run First Aidperiodically. This preventive maintenance can help keep smallproblems from developing into bigger ones.
Using First Aid
Note: For help with correcting permissions problemsrather than file system errors, see ARCHIVED: Using Mac OS X, how do I repair permissions, and what does that do?
To check your startup disk, run First Aid from your softwareinstallation DVD:
- Insert the DVD, and then restart your computer. To force yourcomputer to boot from the DVD, hold down the
ckey. - Follow the instructions on the screen, and when the menu barappears, from the Utilities (Mac OS X 10.5 andlater) or Disk Utilities (Mac OS X 10.4) menu, selectDisk Utility.
- In the column on the left, select the volume you want to repair,and then on the right, click the First Aid tab. You canselect multiple volumes by holding down the
Commandkey while clicking the volumes. - To begin a verification process (a simple check for errors), clickVerify Disk. To verify and repair any problems on the selected volume(s), click Repair Disk. You can stop the scan at any time byclicking Stop Verify or Stop Repair.
Results
The results of a verification and/or repair will be posted in thewindow. Run First Aid repeatedly until you see thefollowing message at the end of the scan, where disknameis the name of your disk:
The volume 'diskname' appears to be OK.
First Mac Os Version
Note: Some volumes can be verified but not repaired(e.g., the startup disk, the volume where Disk Utility resides, awrite-protected disk such as a DVD-ROM, or a disk that has openfiles). First Aid will warn you if one of these conditions exists whenyou select a volume.
Handling problems First Aid cannot repair
Occasionally, at the end of a scan, a message similar to the followingwill appear:
'Scan complete. Problems were found, but Disk First Aid cannot repairthem.'
This indicates that some of your files may be more severely damaged.To repair this damage, you can either back up your disk and reformat,or obtain a more comprehensive disk repair program. Two such programsare DiskWarrior from Alsoft, andTechTool Pro from Micromat ComputerSystems.
For the Apple computer family, see macOS
| Operating System market share as of November, 2012[1] |
|---|
| Microsoft Windows - 82% |
| Mac OS X and Mac OS - 6% |
| iOS - 82% |
| Android - 3% |
| Java ME - 1% |
| Linux - 1% |
| Other - 0% |
The Macintosh Operating System (Mac OS) is a program that allows a Macintoshcomputer to operate and be used. Mac OS was first made by Apple Inc. in 1984. In those days Mac OS was called Macintosh System Software – which was shortened to System or SSW (System Software). The term 'Mac OS' first appeared in the splash screen for System 7.5.1, but was not adopted as the new name until the release of Mac OS 7.6.
The latest version of Mac OS is Mac OS 11 Big Sur.
Related pages[changechange source]
Apple Operating Systems
References[changechange source]
- ↑Operating System Market Share, November 2012, courtesy of Net Applications, a marketing company which obtains its data from the Alexa Toolbar or related products. Because people who install these products on their computers are not always aware that the product reports web browsing habits back to the marketers at Alexa some security software considers the Alexa Toolbar spyware and removes it. Both the automated removal-as-spyware and the self-selecting nature of those who install software that reports on personal web browsing habits raises questions as to whether the resulting data represents a unbiasedstatistical sample of Internet users.