Updating from mac 10 1 5
Beginning in 2013 with OS X 10.9 Mavericks, releases have been named after landmarks in California.
This resolves many network issues that Mac users experience with wi-fi and is an easy procedure: For sluggish Bluetooth related Wi-Fi problems, switching the router to 5GHz is often sufficient to resolve any trouble.
After Apple announced that they were switching to Intel CPUs from 2006 onwards, a separate version of Mac OS X 10.4 Tiger was made and distributed exclusively with early Intel-based Macs; it included an emulator known as Rosetta, which allowed users to run most Power PC applications on Intel-based Macs.
Mac OS X 10.5 Leopard was released as a Universal binary, meaning the installer disc supported both Intel and Power PC processors.
One persistent wi-fi complaint with OS X Yosemite, even after OS X 10.10.2 appears to be abnormally sluggish wireless networking performance and slow transfer speeds when Bluetooth is enabled concurrently with a wi-fi connection.
For users who experience the Bluetooth related Wi-FI issues, disabling Bluetooth will return wireless speeds to their expected rate, however, given that Bluetooth is required to use an Apple Wireless Keyboard, Magic Mouse, or Magic Trackpad, amongst other third party accessories, disabling Bluetooth is an unacceptable situation for many of these Mac users.Typically, wi-fi issues with OS X 10.10.2 come in two varieties; sluggish transfer speeds relating to Bluetooth, or outright connection dropping and failing to establish a wireless connection at all.