Sarah wants to get a new Mac laptop. Leo says that Apple is likely to announce a new MacBook tomorrow, with Intel's new Kaby Lake processors. They'll be faster, and they'll have higher resolution screens, but that's about it. That means the time is right to make "the Switch." She'll want to look at the Mac keyboard, though. She should go to the Apple Store and try it out, because it's different. It also only has one connector, and she'll have to buy adapters to add external devices.
Ed wants to know if a MacBook is a good laptop just for getting online. Leo says it is, but it's also overkill. We've been conditioned to accept that we need a complicated computer for our general purpose daily computing needs. Leo recommends a Chromebook. They're very secure, and extremely affordable at $200 to $500. For most people's needs, it works just fine.
Maria is looking to buy a used MacBook on Craigslist. Leo says that it's risky to buy other people's used computers because she'll be buying other people's problems. Additionally, Craigslist is the home of scammers. It can even be dangerous. Leo advises going to Apple and looking at their refurbished products. She can save a few hundred that way and she'll still get the warranty to boot. A MacBook Air is affordable, thin, and very powerful. The 13" MacBook Air is Maria's best option.
Matt isn't sure his 2013 MacBook Pro is upgradable to Yosemite. Leo says it is, and all he needs to do is check the Apple App Store.
Donna has a MacBook and it has trouble waking up. Leo says that could be due to her Time Machine external hard drive. She should try disconnecting it.
Sometimes Macs will wait until the drive spins up when it's asleep. OS X Yosemite has a safe sleep mode, which is a very deep sleep when the battery either runs low or is idle for a few days. It copies memory to hard disc and shuts everything down. It's like Hibernating in Windows, and it takes awhile to get going. Leo's not a fan.