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Levi Garner. Storage basics. Topics. Computer Storage Devices Storage Media and Storage Devices Memory and Storage. Understanding Computer Storage. Objectives. Explain the need for storage devices Distinguish memory and storage Distinguish storage devices and media.
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Levi Garner Storage basics
Topics • Computer Storage Devices • Storage Media and Storage Devices • Memory and Storage
Understanding Computer Storage • Objectives
Explain the need for storage devices • Distinguish memory and storage • Distinguish storage devices and media.
Computer Storage Devices • Storage devices • Components that retain data. • Without storage devices you would re-create data every time you wanted to use it.
Files • File • A collection of related information or codes. • Document • The most common file people use.
System Startup • Computer storage devices are a key part of a computer’s start-up process. • Basic Input/Output System or BIOS • Set of programs that tell the computer equipment how to start up.
Memory and Storage • Memory • A set of chips that acts as a temporary work space in the computer. • ROM • Stores contents permanently even if computer is turned off. • RAM • Only stores contents temporarily, if the computer shuts off all contents are lost.
Storage Versus Memory • Storage uses many different methods to store data, so it isn’t lost when the power is shut down.
Storage Media • In terms of storage, a medium is an object that physically holds data or program instructions. • Examples • Floppy Disks • Magnetic Tapes • Compact Disks
Storage Devices • Storage Device- is a piece of hardware that holds the storage medium, sends data to the medium, and retrieves data from the medium. • Examples • Floppy Disks • CD-ROM • DVD ROM • Tape Drives