Many people use Mac Mini computers that are just the cpu part you have to attach the other accessories separately. It provides almost the same experience and performance, however some of the users have lost their data due to Mac Mini input output error. The input output error is generally caused due to the corruption in the Mac OS X or the hard drive. The data could not be written on the hard drive or sometimes it could not be accessed also. The will lead to data loss situation. The corruption can be caused due to unexpected shut down of the Mac mini that interrupts the reading writing process on the Mac drive, Any virus infection, had drive error or performance inconsistency will also result in Mac Mini input output error. You can use the disk utility or system restoration to solve this problem but if it is not fixed you have to format the Mac drive and re install the Mac OS X. Now to recover the data after solving Mac Mini input output error you can use the time machine backup utility. But when it fails you can use the Mac data recovery software and restore all the lost files and folders.