T2 chip! ByeBye 12in Macbook! Mojave yet? ssd again! New Win10 Version 1903!

The T2 picks up from there, with four major capabilities:

• It takes over all access to built-in solid-state drives, enabling real-time encryption and decryption so your data is never stored in the clear
• It provides the processing power that lets you invoke Siri with “Hey Siri”
• It offers image enhancement for built-in FaceTime HD cameras
• It can optionally lock down a Mac’s boot process—so if someone were to steal your Mac, they wouldn’t be able to start it up using an external drive and steal your data

The T1 and T2 can do all these things because they’re basically separate computers with their own isolated memory and storage: they’re ARM chips running Apple’s bridgeOS. The T2 is based on the A10 processor that shipped in the iPhone 7, and bridgeOS derives from Apple’s watchOS. In some ways, the T1 and T2 act as independent co-processors, enhancing performance by handling common tasks for the Mac and enabling the CPU to focus on other things. But in other ways, they significantly beef up security, since they offer a fully independent system that remains secure even if MacOS is compromised.

So the benefit?  since it locks down the Mac boot process (you can no longer boot from an external drive by default) – if someone steals your mac they have to do MUCH more to get into it!  That’s a plus.
It also makes FileVault (encryption of your hard drive) much faster and simpler – and done by default.  On current systems to invoke FileVault (or to disable it once its active) can take hours.  with T2 its immediate.
Also – it brings the touch-id capability of your iPhone to your mac.  its as accurate as your iPhone is (and in fact uses the same CPU as in an iPhone 7).
Not a bad feature as both Apple and Samsung have got the touch-id pretty much down pat at this point!

Drawbacks?  Plenty!  First of all, no more running Mac OS on non-apple systems.  the T2 chip knows if its running on a true Apple and no T2 chip detected – no booting on non-apple hardware.
Also – VERY MUCH LESS REPAIR ABILITY.  From the article:
The T2 chip requires technicians to run a proprietary diagnostic tool to replace certain components like flash storage, the Touch ID sensor, and the main logic board, which means repairs or replacement of those components can only be done at Apple Stores or by Apple Authorized Service Providers. Most Mac users will never need to replace those components, but it’s yet another way Macs are becoming less repairable.
OUCH!  its more like windows – you have to ‘activate’ certain components to replace them.  If you break your screen and buy a nice screen off eBay (even exactly the right component) the T2 chip will prevent you from being able to replace the screen by yourself!  BUMMER! (for both you and us at TopTech).
BIG drawbacks – there are frequent and widespread problems with audio on T2 equipped macs – with external sound devices.  If you are a DJ spinning tunes at a party and suddenly pops and hisses come out of your mac you will be upset!  Apple has yet to acknowledge the severity of the problem but reports are widespread.
ALSO – ZERO ability to do data recovery – if the T2 chips fails, your data is TOAST. TOAST TOAST.

All in all, I’m not a fan!

BYE BYE 12in MacBook.
Title says it all.  the 12in MacBook has been officially discontinued!