An introduction to Apple iCloud and Why You May need an Account.

iCloud Account, or an Apple Account is needed to be able to use Apple devices like iPhone, iPad, Macbook, iWatch, Apple TV, etc.

They are free and beyond the security and device management, iCloud also has lots of other features including apps.

These apps include:
Mail, Wallet, Books, Pages, Numbers, Keynote, FaceTime, Maps, Notes, Drive (storage), Safari, Contacts, Photos, Messages, Calendar, Music, Phone, Device Backup, and more.

What is important is remembering this:
What email address did I use for my iCloud Account?
What is my iCloud Account Password?
Did I setup 2 Factor Authentication?
What devices am I using my iCloud account on?

Another tip - use only 1 iCloud account and use that account on all of your Apple devices.