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80 Cards in this Set

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  • Back

Secondary Storage

Physical material on which a computer keeps data, information, programs, and applications; includes hard disks, external hard disks, solid-state drives, memory cards, USB drives

Storage Device

Hardware that records and/or retrieves items to and from storage media


Process of transferring data, instructions, and information from memory to a storage medium


Process of transferring these items from a storage medium into memory


Number of bytes (characters) a storage medium can hold


1 thousand


1 million


1 billion


1 trillion

Access Time

Measures 1) the amount of time it takes a storage device to locate an item on a storage medium 2) the time required to deliver an item from memory to the processor

Transfer Rate

The speed with which data, instructions, and information transfer to and from a device


Kilobytes per second


Megabytes per second


Gigabytes per second

Hard Disk/Hard Disk Drive

Storage device that contains one or more inflexible, circular platters that use magnetic particles to store data, instructions, and information

Fixed Disk

A hard disk mounted inside the computer's case


Made of aluminum, glass, or ceramic and has a thin coating of alloy material that allows items to be recorded magnetically on its surface

Longitudinal Recording

Aligns the magnetic particles horizontally around the surface of the disk

Perpendicular Recording

Hard disks align the magnetic particles vertically, or perpendicular, to the disk's surface, making much greater storage capacities possible


Number of bits in an area on a storage medium; higher density equals more storage capacity


The process of dividing the disk into tracks and sectors so that the operating system can store and locate data and information on the disk


Narrow recording band that forms a full circle on the surface of the disk


The disk's storage locations that consist of wedge-shaped sections, which break the tracks in these small arcs

Read/Write Head

Mechanism that reads items and writes items in the drive as it barely touches the disk's recording surface

Revolutions Per Minutes/RPM

The spinning of the platters in the hard disk; it allows nearly instant access to all tracks and sectors on the platters

Disk Cache/Buffer

Consists of memory chips on a hard disk that stores frequently accessed data, instructions, and information

RAID/Redundant Array of Independent Disks

A group of two or more integrated hard disks

External Hard Drisk

Separate, freestanding storage device that connects with a cable to a USB port or other port on a computer or mobile device

Solid-State Media

Flash memory chips that consist entirely of electronic components, such as integrated circuits, and contain no moving parts.

Recycle Bin/Trash Recovery

A location to store discarded files

SSD/Solid-State Drive

Flash memory storage device that contains its own processor to manage its storage

Advantages SSDs have over traditional hard disks

-Higher storage capacities

-Faster access time

-Faster transfer rates

-Quieter operation

-More durable

-Lighter weight

-Less power consumption

-Less heat generation

-Longer life

Memory Card

Removable flash memory storage device, usually no bigger than 1.5 inches in height or width, that you insert in and remove from a slot in a computer, mobile device, or card reader/writer

Types of Memory Cards


-Secure Digital High Capacity

-Secure Digital Expanded Capacity





-xD Picture Card

-Memory Stick PRO Duo

-Memory Stick Micro

Card Reader/Writer

A device that reads from and writes on memory cards; usually connect to the USB port on a computer

USB Flash drive/Thumb Drive

Flash memory storage device that plugs in a USB port on a computer or mobile device

Cloud Storage

An internet service that provides storage to computer or mobile device users

What you can do with storage

-Synchronize files

-Write documents

-Back up your computer

-Stream music

-Post photos

-Play games

-Evaluating providers

Optical Disks

Type of storage medium that consists of a flat, round, portable disc, made of metal, plastic, and lacquer that is written and read by a laser

LightScribe Technology

Drives which can etch labels directly on the specially coated discs

Microscopic Pits

Indentations on optical discs


Flat areas on optical discs


A type of optical disc that users can read but no write on (record) or erase

Single-Session Disc

A standard CD-Rom

Photo CD

A CD that only contains photos


An optical disc on which users can write once, but not erase, their own items, such as text, graphics, and audio


Discs that can only be written on once, but can be read many times


An erasable multi-session disc users can write on multiple times


A more expensive DVD format which has a higher capacity and better quality that standard DVDS, especially for Hi-Def audio and vidoe


A high-capacity optical disc that users can read but not write on or erase


Competing DVD-recording WORM formats, on which users can write once but not erase their own items, including video, audio, photos, graphics, and text


Competing DVD-rewritable formats that users can write on multiple times


Consists of a special-purpose chip and electronic circuits and control the transfer of data, instructions, and information from a driver to and from the system bus and other components in the computer

EIDE/Enhanced Integrated Drive Electronics

Interface that uses parallel signals to transfer data, instructions, and information

SCSI/Small Computer System Interface

Uses parallel signals, but can support up to 8 or 15 peripheral devices

SAS/Serial-Attached SCSCI

A types of SCSI that uses serial signals to transfer data, instructions, and information

SATA/Serial Advanced Technology Attachment

Uses serial signals to transfer data, instructions, and information

Full Backup

Provides the best protection against data loss because it copies all program and data files

Differential Backup

Copies only the files that have changed since that last full backup

Incremental Backup

Copies only the files that have changed since the last full or last incremental backup

Selective Backup/Partial Backup

Allows the user to choose specific files to back up, regardless of whether or not the files have changed since the last incremental backup

Enterprise Hardware

Allows large organizations to manage and store data and information using devices intended for heavy use, maximum efficiency, and maximum availability.


When a company uses storage management outside of its cloud storage provider

Fibre Channel/FC

Technology that connects the devices to the network; has faster transmission rates than SCSI

Level 1/Mirroring

The simplest RAID storage design; writes data on two disks at the same time to duplicate the data


RAID technique which splits data, instructions, and information across multiple disks in the array

Network Attached Storage

A server that is placed on a network with the sole purpose of providing storage to users, computers, and devices attached to the network

Storage Appliance

A network attached storage server that has its own IP address; does not have a keyboard and contains at least one hard disk

Storage Area Network/SAN

High-speed network with the sole purpose of providing storage to other attached servers


Magnetically coated ribbon of plastic that is capable of storing large amounts of data and information at a low cost

Tape Drive

Reads from and writes on a magnetic tape

Tape Cartridge

Small, rectangular, plastic housing for tape

Tape Library

Individual tape cartridges that are mounted in a separate cabinet

Magnetic Stripe Card

A credit card, entertainment card, bank card, or other similar card with a stripe that contains information identifying you and the card

Sequential Access

Reading or writing consecutively

Smart Card

Alternative to a magnetic stripe card, stores data on an integrated circuit embedded in the card


Consists of an antenna and a memory chip that contains the information to be transmitted via radio waves


Small sheet of film, usually about 4x6 inches


100 to 215 foot roll of film

Computer Output MIcrofilm Recorder

Device that records the images on the film