Question

What is iCloud?

Answer 1

i Cloud is a cloud computing solution by Apple, that provides cloud storage and apps for desktop, tablet and mobile devices.it provides the ability to store documents, videos, photos, music and other data online and the ability to sync it between i OS-powered devices.

Answer 2

iCloud is apples take on google apps/gmail

iCloud provides
email
contact syncing and storage
calendar syncing and storage
notes storage and syncing
reminders syncing
Find My iPhone/iPad
keychain sync (ios and mac devices only) - syncs wifi passwords and other items
document storage (mac/ios app store apps only)
iOS device backup
photo stream (ios and mac devices only?)
back to my mac (something like team viewer or remote desktop - mac only)
find my mac (seems to be new)
safari tab and history sync (mac/ios only)
(Following in beta)
Pages (google docs equivalent)
Keynote (cloud based powerpoint program)
(numbers (google spreadsheet/excel equivalent)