Q1. As long as you stay off internet is safe.
Q2. read this for cold storage and how to sign transactions
https://electrum.readthedocs.io/en/latest/coldstorage.html?highlight=usbI am using electrum for sometime but today first time joined just because I need some information about Electrum wallet.
I have 2 computers and one is connected to Internet and other is not which is not connected I have Electrum Wallet and storing my coins for long term is this safe way to have coins in this wallet and connecting only when I have to transfer coins.
Second question can I transfer my coins without connecting internet if someone can guide me this could be great because I don't want take any risk with these my coins.