Computer storage refers to the components and devices that hold digital data for computers and other electronic devices. This includes both temporary storage, like RAM (Random Access Memory), which is used for quick access to data while a computer is running, and permanent storage, such as hard drives and solid-state drives (SSDs), which retain data even when the device is powered off. Storage capacity is measured in bytes, with larger units like gigabytes (GB) and terabytes (TB) indicating the amount of data that can be stored. Different types of storage serve various purposes, from fast access for running applications to long-term storage for files, photos, and videos.