It is sometimes difficult to define software. In most basic terms, it is computer instructions or data. Basically, anything that can be stored electronically is software. On the other hand, the storage devices and display devices are hardware. Software and hardware are so integrally linked that it’s sometimes difficult to tell the difference between the two. For example, when you purchase a program, you are buying software. But this software is recorded on a disk or another device, and it is hardware.