Windows Vista and Mac OS X are examples of computer operating systems.
Single multitask
Some examples of sediment are dirt, sand, and rocks.
SOME examples of a single user OS include DOS, CP/M, AppleDOS, Geos, MacOS before OS/X, Windows1-3, and Windows 95/98.
Crutches
Some examples OS screws are light bulbs, some types of pumps
Mac Os
There are four examples of civilization. The four examples are tsunami, earthquakes, massive fire and climate change.
these are an examples of operating system - Windows - Linux - Unix - Mac OS
Some examples of proprietary software:WindowsMac OS XVMSAndroidUnixExcelWordAdobe ReaderPhotoshopInternet ExplorerSafarietc.
Examples of four letter nouns:acrebarncarddeckedgefroggoatholeironjokekneeluckmeatnoteokrapailquizrosestartownuservasewaspx-rayyearzeal
Mac OS XMicrosoft WindowsLinux (Ubuntu)