#APPLE MAC BACKGROUND 2017 UPDATE#
#APPLE MAC BACKGROUND 2017 SOFTWARE#

Earlier systems used the lower 24 bits for addressing, and the upper 8 bits for flags. It also moved the Mac to true 32-bit memory addressing - necessary with the ever increasing amounts of RAM available. System 6 consolidated the previous releases into a much more complete and stable operating system. MultiFinder had been released with earlier systems, but the 6.x systems were the first to make it official and widely used. Time was given to the background applications only when the foreground (or 'running') applications gave it up ( cooperative multitasking), but in fact most of them did via a clever change on the OS's event handling. System 6 added MultiFinder, an add-on replacement for the Finder which could run several programs at once.

#APPLE MAC BACKGROUND 2017 SOFTWARE#

System Software 5.1 ( System 4.3, Finder 6.0, MultiFinder 1.0).System Software 5.0 ( System 4.2, Finder 6.0, MultiFinder 1.0).System 5 was also the first Macintosh operating system to be given a unified 'Macintosh System Software' version number, as opposed to the numbers used for the System and Finder files. This significantly altered the extent and design of the underlying graphics architecture (and its APIs), but it is a credit to Apple that most users, and perhaps more importantly existing code, were largely unaware of this. The others significant change that System Software 5 brought to the Mac was Color QuickDraw, which debuted with the Macintosh II. System Software 5.0 added MultiFinder, an add-on replacement for the Finder which could run several programs at once.

'System 5' refers to the system software bundle version, not the System software version. The other significant change that System 4.x brought to the Mac was Colour QuickDraw, which debuted with the Macintosh II in 1986. System 3.0 introduced HFS (Hierarchical File System) which had real directories - previously the Finder created the illusion of folders on the flat file system. Go to System Preferences > Software Update, then click Advanced.Early Macintosh system software Macintosh System Software 1Īll of these versions could only run one application at a time, though special application shells such as Switcher (discussed under MultiFinder) could get around this to some extent.

#APPLE MAC BACKGROUND 2017 UPDATE#

To make sure that you always get these background updates promptly, keep the “Install system data files and security updates” setting enabled in Software Update preferences. Some system data files are installed only when you turn on or use features that require them.

System data files, which provide new word lists, speech-recognition assets, voice assets, better suggestions for contacts and events, and more.

When you restart your Mac, these updates also remove any malicious software that is identified but already installed.

Security-configuration updates, which help make your Mac more secure by identifying malicious software and preventing its installation.

They don't cause your Mac to restart, but some take effect only after you restart. That includes installing all available macOS software updates, including security updates and the background updates described in this article.īackground updates include security-configuration updates and system data files, which are automatically installed by default.

Keeping your software up to date is one of the most important things you can do to maintain the security of your Mac.

Apple mac background 2017