disk storage

Disk storage refers to the method computers use to save and retain data digitally. It involves devices like hard drives or solid-state drives that store information magnetically or electronically. Think of it as a digital filing cabinet where files, programs, and data are kept for future use. When you save a document or install a program, the data is written onto the disk so it can be retrieved later. Disk storage provides persistent, long-term data retention, even when the computer is turned off, making it essential for everyday data management.