How to recall a mail in Outlook?

Go to 'Sent Items' and open the mail you want to recall. Now take the actions menu and choose recall.

How to extract an iso file in Linux?

mkdir <target_dir>
mount -o loop -t iso9660 <your_iso_file> <target_dir>

Note: There are many other ways to extract the contents, this one works faster to me in command line.

Byte Messaurement

Bit : Either 0 or 1

8 Bit = 1 Byte

1024 Byte = 1 Kilo Byte (KB)
1024 Kilo Byte = 1 Mega Byte (MB)
1024 Mega Byte = 1 Giga Byte (GB)
1024 Giga Byte = 1 Tera Byte (TB)
1024 Tera Byte = 1 Peta Byte (PB)
1024 Peta Byte = 1 Exa Byte (EB)
1024 Exa Byte = 1 Zetta Byte (ZB)