Students do not have to carry heavy books around any more. All reading material that has a soft copy can be uploaded to the cloud. Also, the use of floppy disk, external hard drives, pen drives will be used less or possibly not all.
Instead of carrying around these items that will contain your important documents, you can easily access it from your cloud provider. Currently almost all software supports the cloud. Adobe and others like Microsoft have made provision for these services and it is so convenient for individual use.