Grade 6/7 (Storage Devices)

CD (compact disk)

can be used for multimedia applications such as encyclopaedias and can store large files storage capacity = 700MB

external hard disk

can store very large amounts of data similar to the hard disk in your computer storage capacity = 1TB

DVD

hold much more data than CDs commonly used for storing video storage capacity = 4.7GB or 120 minutes

floppy disk

holds very small amounts of data used to transfer small amounts of data from one machine to another your computer needs a floppy disk drive to read these storage capacity = 1.44MB

zip disk

like large floppy disks your computer needs a zip drive to read these storage capacity = 250MB

CD-RW or DVD-RW

means CD-ReWritable or DVD-ReWritable the CD/DVD can be written and re-written to

CD-R or DVD-R

means CD-recordable or DVD-recordable the user can write data to the CD/DVD once or fill it over time

flash drive

memory sticks/pen drives used to transport files and backup data from computer to computer storage capacity = 1GB to 64GB

CD-ROM or DVD-ROM

read only, the data is written to them before they are sold

hard disk drive

the most common type of storage device used to store anything you download, applications you install, and all files you save on your computer 20GB to 1TB

storage device

used for storing information or data