Previous versions of Apple's iMac desktop operating systems have all been named after cats, but "this is the first OS update delayed due to a dwindling supply of cats," said Apple's Federighi, who is the chief of iOS and OS X operating systems.
Behold OS X Mavericks, which Federighi said was inspired by the California setting into which Apple was born: the Mavericks Invitational big wave surfing contest is held annually in Northern California.
Lots of new features were included in this upgrade: Tagging, Multiple Displays, Calendar updates, Safari with a new side bar, Notifications and iCloud Keychain updates, as well as the debut of Apple Maps and iBooks, now available on iMacs.
With Tagging, users can now tag files to make them more searchable. You can tag your photos or other kinds of content to group things together.
The Finder window, which allows users to search through content saved or downloaded to the computer's hard drive, now has tabs, which can be color-coded, so users can toggle between multiple file paths and searches, like a web browser.
The new operating system also included "next advanced technology," which meant improvement on battery life. The new system brings down CPU activity by 72 percent, meaning more "compressed memory," Federighi said. CPU stands up central processing unit, which handles the tasks and processes currently running on a computer.
The new system can compress inactive memory to free up space for open memory. This makes things like opening documents or reopening an application happen faster.
Notifications was also given a new upgrade in Mavericks that makes it a smarter tool. Users can now reply to emails and iMessages right inside a notification. Apps that send notifications to iOS devices will also send them to your Mac now, too.
New MacBook Air Has 'All Day Battery Life'
What good would all this new software be without some new hardware to play with it on?
Apple today revealed a new MacBook Air, which will start shipping today, featuring "all day battery life," according to Philip Schiller, Apple's senior vice president of worldwide marketing.
That actually means is that the 11-inch MacBook Air will support nine hours of battery life, while the 13-inch is promising 12 hours of battery life.
The New Air will also include fourth generation Intel Core i5 and Core i7 processors, with a new Intel HD Graphics 5000 clip that boasts up to 40 percent faster performance for gaming and graphics intensive apps. Apple executives said the computer's new flash storage provides speeds up to 45 percent faster than the previous generation and nine times faster than traditional hard drives -- good news for gamers and movie watchers.
It will also have dual microphones, a FaceTime HD camera, a high-speed Thunderbolt port and two USB 3.0 ports.
The 11-inch MacBook Air will go for $999 for 128GB and $1,199 for 256GB. The 13-inch Air is selling for $1,099 for 128GB and 256GB on $1,299.
Sneak Peek: New Mac Pro Coming Later This Year
Apple teased a new Mac Pro computer, which is a model that hasn't seen an upgrade in a while. But it won't be available until later this year.
Billed as the "future of the pro desktop," the computer's hardware features a revamped redesign inside and out.
On the outside, a 9.9-inch-tall, black, glassy cylindrical structure replaces the familiar silver aluminum rectangle.
On the inside, Apple executives promised the new Pro will have a "unified thermal core," a "revolutionary" system that will include the next generation Xeon Intel processors, dual workstation-class GPUs, Thunderbolt 2, PCIe-based flash storage and ultra-fast ECC memory.
In a nutshell, the new Apple computer promises to have "10 times the speed of any notebook hard drive," Schiller said.
There was no mention of a price for the new Mac Pro, nor any mention of a new MacBook Pro with Retina Display.