On the 1-core processor (#EP5Y), VIOS is not supported and the IBM i operating system levels supported are: IBM i 7.4 TR2, or later; IBM i 7.3 TR8, or later; IBM i 7.2 with 7.2 Licensed Machine Code - RS 720-Q, or later; If installing the AIX operating system LPAR with any I/O configuration (one of these). Editor's note: This is the first of a series of articles covering Mac OS X Server networking topics. AppleTalk is one of the two protocols typically used in today's Mac networks. Inside Macintosh covers only the classic Mac OS; a new set of documentation was introduced for Mac OS X. Initially this documentation included only the Carbon Specification identifying the APIs that were supported in Carbon and the Cocoa documentation inherited from OpenStep. Explore the world of Mac. Check out MacBook Pro, MacBook Air, iMac, Mac mini, and more. Visit the Apple site to learn, buy, and get support.

Is your Mac up to date with the latest version of the Mac operating system? Is it using the version required by a product you want to use with your Mac? Which versions are earlier (older) or later (newer, more recent)? To find out, learn which version is installed now.

If your macOS isn't up to date, you may be able to update to a later version.

Which macOS version is installed?

From the Apple menu  in the corner of your screen, choose About This Mac. You should see the macOS name, such as macOS Big Sur, followed by its version number. If you need to know the build number as well, click the version number to see it.

What is the latest macOS version?

These are all Mac operating systems, starting with the most recent. When a major new macOS is released, it gets a new name, such as macOS Big Sur. As updates that change the macOS version number become available, this article will be updated to show the latest version of that macOS.

If your Mac is using an earlier version of any Mac operating system, you should install the latest Apple software updates, which can include important security updates and updates for the apps that are installed by macOS, such as Safari, Books, Messages, Mail, Music, Calendar and Photos.

macOSLatest version
macOS Big Sur11.2.3
macOS Catalina
10.15.7
macOS Mojave10.14.6
macOS High Sierra10.13.6
macOS Sierra10.12.6
OS X El Capitan10.11.6
OS X Yosemite10.10.5
OS X Mavericks10.9.5
OS X Mountain Lion10.8.5
OS X Lion10.7.5
Mac OS X Snow Leopard10.6.8
Mac OS X Leopard10.5.8
Mac OS X Tiger10.4.11
Mac OS X Panther10.3.9
Mac OS X Jaguar10.2.8
Mac OS X Puma10.1.5
Mac OS X Cheetah10.0.4

A MacBook Pro RAM Upgrade ranges anywhere from 512MB 667MHz in the Original MacBook Pro to 16GB 1600MHz in the 2012 Model 9,2. Some MacBook Pro Memory Upgrades can be tricky. The 'Original' MacBook Pro, for example, has a silver bezel around the screen, and runs DDR2-667 memory. The maximum memory that can be installed is 4GB; however, only 3GB will be addressed. Installing 4GB of RAM utilizing the 2x2GB configuration is the best configuration for this machine as it will give your machine a slight boost from the 4th GB, and you will enjoy a boost from installing matched pair modules.

The Processors

With the latest versions of the MacBook Pro you can find on the shelves today, you will find a few different options with the processor. The machines today have a 2.5 GHz dual core Intel Core i5 processor that has a 3 MB shared L3 cache, as well as a 2.6 GHz dual core Intel Core i5 processor. You also have the option of an i7 processor that's a bit faster. They offer a 2.4 GHz quad core Intel Core i7 Ivy Bridge, as well as a 2.7 GHz i7 Ivy Bridge processor.

Hard Drives

Again, with the variety of MacBook Pros on the market right now, you will have quite a bit of variety here. The latest Retina models of the MacBook Pro feature SSD hard drives rather than traditional SATA hard drives. The 13' can come in a number of different options, with the standard being 128GB for the 2.5 GHz and 256GB for the 2.6 GHz. With the 17' computer, you will have 256GB for the 2.4 Ghz or 512GB for the 2.7 Ghz.

Expansion Cards

The latest versions of the MacBook Pro, the Retina Display models, are not able to have RAM or the hard drive upgraded. Thus, it is important for buyers to make sure they are choosing a machine that is going to have the capability to work for their needs until they are ready to buy a new one.

The Battery and Power

Inside Outside Mac Miller

The batteries on the MacBook Pro are able to offer up to 7 hours of wireless web time, and this is true of all of the different Retina Display models out now. They also are able to offer up to 30 days of standby time. The 13' model has a built in battery – 74-watt –hour lithium polymer battery. The larger 15' model has the same type, only it is a 95-watt-hour battery. The 13' also has a 60-watt MagSafe 2 Power Adapter and port, while the 15' has a 85-watt version of the same.
As for the power, the MacBook Pros have a line voltage of 100V to 240V AC, and a frequency of 50Hz to 60 HZ.

What External Connectivity Does a MacBook Pro Provide?

You will find a number of connections for your MacBook Pro. They all include the MagSafe 2 Power Port, which is where the magnetic connector that charges the machine will go. They also offer two USB 3.0 ports, two Thunderbolt ports, dual microphones, an SDXC card slot, and an HDMI port. In addition, they have a headphone port. You will be able to use the iPhone headset with a microphone for this port as well.
In addition, they have Wi-Fi capabilities with 802.11n wireless networking capabilities, as well as Bluetooth 4.0.

What Operating Systems Does a MacBook Pro Run?

All MacBook Pros come preinstalled with the latest OS X operating system. In current MacBook Pros, that is Mountain Lion OS. Even though the machine comes with this OS installed, this is not the only one you can use with the laptop. It is also possible to use Windows on the MacBook Pro, as it uses Intel x86. You are able to install 32-bit as well as 64-bit versions of Windows XP, Vista, and 7. However, while it is not 'official,' it is also possible to install other x86 operating systems, including the popular Linux.

Mac Pro

Inside/outside Mac Os Update

Mac Pro 1,1 and 2,1
Mac Pro 3,1
Mac Pro 4,1 and 5,1 4-Core
Mac Pro 4,1 and 5,1 8-Core
Mac Pro 5,1 6-Core
Mac Pro 5,1 12-Core
Mac Pro 6,1

iMac

iMac 4,1, 4,2 and 5,2
iMac 5,1 and 6,1
iMac 7,1
iMac 8,1
iMac 9,1
iMac 10,1 and 11,1
iMac 11,2 and 11,3 (i3)
iMac 11,3 (i5/i7) to 12,2
iMac 13,2 14,2 15,1
iMac 17,1

MacBook Pro

MacBook Pro 1,1 and 1,2
MacBook Pro 2,1 and 2,2
MacBook Pro 3,1 and 4,1
MacBook Pro 5,1 to 6,2
MacBook Pro 7,1
MacBook Pro 8,1 to 8,3
MacBook Pro 9,1 and 9,2

MacBook

Inside/Outside Mac OS

MacBook 1,1
MacBook 2,1
MacBook 3,1 to 4,2
MacBook 5,1
MacBook 5,2 (667-Mhz)
MacBook 5,2 (800-Mhz)
MacBook 6,1
MacBook 7,1

Mac Mini

PowerMac 10,1 and 10,2
Mac Mini 1,1
Mac Mini 2,1
Mac Mini 3,1
Mac Mini 4,1
Mac Mini 5,1 to 5,3
Mac Mini 6,1 and 6,2