operation system on flash drives and CDs

One good thing about having an operation system on the flash drives and Cds is because you dont need a hard drive to do it. Its also good because nobody will know what you are doing on the computer because the operating system will all be in the flash drive or CD. Its also good if like your computer has a virus or something and you need to pull out stuff you need from it. You can just use the flash drive or CD. One bad thing about having the operation system on the flash drive is that you might have to spend more money on a flash drive that holds more memory if you need it.

i agree that it is handy and you dont need to carry something big like a hard drive around all you need is a usb or a cd and it is portable. And i also agree that it can help you get rid of viruses and other sorts of bad trojans on your computer.