How to Access iCloud.com Email from Anywhere via the Web
- From any web browser, go to http://icloud.com and log in with the Apple ID / iCloud email

- Click on the “Mail” icon once logged in

- iCloud Mail will load, offering full access to the iCloud email account
including the inbox, drafts, sent, archives, Trash, junk mail, VIP
lists, and any other mail folders.
The iCloud Mail web client is full featured, you can send, reply,
forward, trash, flag, archive, and compose new email messages directly
from the iCloud.com Mail website. Because iCloud Mail is connected to your Apple ID, you’ll even have
full access to your contacts list and address book, with auto-complete
and everything.
This is really useful for many reasons, particularly if you’re away
from your iOS devices or Mac but you still want to check your iCloud
email, but it’s also very helpful because it’s the only way to check
iCloud email from a PC, whether that PC is running Windows or Linux, or
something else.
Tethered Jailbreak
Tethered jailbreaks are require a computer
connection to boot a jail broken iOS device. It means this:
every time your iPhone or iPod touch reboots or the battery dies, you
have to connect (tether) your iOS device back to your computer so that the hardware can boot with the aid of the jailbreak application.
After the device has been booted you can then disconnect it from your
computer and use it as usual, just remember that if the battery dies or
you reboot the iPhone/iPod you will need to connect it again.
Untethered Jailbreak
An untethered jailbreak is the jailbreak that didn't requires connection to your computer except for the initial jail breaking process. You can reboot your iPhone or iPod touch as usual, there is no need to connect it to computer. Or if the
battery dies it’s no big
deal you just charge it again and it will boot as usual.