pack a punch/wallop
to provide a burst of energy or power or excitement
The storm packed a wallop and did much damage to the boats.
Precautions while using Computer and Laptops
Other laptop security hints
In addition to protecting your laptop from loss, damage, or theft, you should also take the time to protect the information on the laptop. One way to do that is to separate the data from the laptop. For most users, the information on a laptop is far more valuable than the laptop itself. One easy way to protect against the loss of data is to either backup your data before you travel, or plan to keep any important or sensitive data data separate from the laptop in a device such as a flash drive, CD ROM, or or external hard drive. Of course, these data storage devices should always be with you or with your carry on bag, and not in any checked bag.