Storage

Hard disks

> Hard disks can store data using longitudinal or perpendicular recording
>A hard disk contains one or more inflexible, circular platters that use magnetic particles to store data, instruction, and information
> characteristics of a hard disk include capacity. platters, write heads, cylinders, sectors and tracks, revolutions per minute, transfer rate and access time
> Thw hard disks arms move the read/write head, which reads items and writes items in the drive

Storage

Mari kita belajar .. (storage)

> Storage is holds data, instructions, and information for future use
> A storage medium is the physical material on which a computer keeps data, instruction, and information

> Capacity is the number of bytes a storage medium can hold
> A storage device is the computer hardware that record and/or retrives items to and from storage medium

• Reading is the process of transferring items from a storage medium into memory
• Writing is the process of transferring items from memory to a storage medium

> Memory (most RAM) , hard disk, memory card and usb fash drives, optical discs, tape