Originally Answered: What is the difference between tumour and cancer? A tumor can be benign or cancerous. A benign (non cancerous) tumor is a mass of cells that lacks the ability to invade neighboring tissue.
While portable slim hard drives are meant for carrying around in a backpack or laptop bag, all but the largest 32 TB and 64 TB external hard drives (featured here above) are still small enough for easy transport in a backpack or briefcase.
An external drive is just a hard drive or SSD that is connected to a computer on the outside rather than on the inside. Some external drives draw power over their data cable, while others may require an AC wall connection.