The first place on could try is through eBay or Craigslist. Another option is looking up any local electronic resellers in the neighborhood to find a Mac for sale.
Bionic chips, such as those used in Apple's devices, are not sold separately to consumers. They are integrated into products like iPhones, iPads, and Macs. If you're looking for a device with a bionic chip, you can purchase these products directly from Apple’s website, authorized retailers, or electronics stores.
The recent operating systems for macs is mac osx version 10.5.4 leapord.
Apple Macs don't use valves (computers haven't used valves since around 1955). However, transistors are very much smaller than valves (by several orders of magnitude), are much more reliable, are cheaper to mass produce and offer much greater efficiency.
Microsoft office can be installed on Macs, although there is a different version than Windows. There is little relationship between the two. Apple macs are only produced by Apple and no one else, whereas any company can make a PC running microsoft. Steve Jobs (founder of Apple) and Bill Gates (founder of Microsoft) used to work together, but went their separate ways.
In Macs after 2006 there are Intel CPUs, the same as PCs Running Microsoft windows. But pre-2006 Macs used the PowerPC family of CPUs, the G5 G4 and G3. A long time before that apple used Motorola CPUs that are now obsolete.
Either you have the app on your Macintosh Install Disk or you will need to download it from the Apple website. If you remember it is used to create apps such as widgets for Macs or apps for iPhone and Apple is picky who gets their apps on the real download page.
Other than eBay, someone can purchase an Apple OS online at Amazon. One couple also purchase it on the Apple website. Someone might be able to find a used version on Craigslist.
One can purchase a new video battery for their iPod from Amazon, Overstock or from eBay either used or new. One can also purchase them from Apple by using the Apple store.
Macs are used in a wide variety of businesses around the world. (See links below)
The best place to purchase a new Macbook Air is the official Apple store. To avoid shipping costs, you may purchase a Macbook Air from your local Apple and/or electronics store. For a reduced cost, you can purchase a used Macbook Air from auction websites such as Amazon and Ebay.
There is no separate PC version of the Apple TV as it connects your TV to your network at home (usually wireless but can use an Ethernet wire) which can be used by Macs or PCs or both. You will need the Windows version of iTunes installed if you want to stream media from a PC to the Apple TV. (See links below)
When one is looking for an Apple Bluetooth keyboard they can go to a local Apple store or Best Buy. If you are looking for one used you can look through classifieds.