Removable Storage Devices 68362a

Removable Storage Device

ICT Lesson for Year 3 20th April 2009

INTRODUCTION

• Removable storage is data storage that can be use to store or backup our data. • We can easily carry data anywhere and anytime. BACK

C rem an y de ova ou fin v b use ices le st d 5 d t that ora g os av can e e d be ata ? CD-ROM

Floppy Disk

EXTERN AL HARD DRIVES

CLASSWO RK

DVD

FLASH DRIVES

INTRODUCTIO N

FLOPPY DISK

• the first types of storage devices • It can hold up 160 kB to 1.44 MB of data • The floppy came in two different sizes (5.25” and the 3.5”) • There were several problems with floppy disks that included limited storage, limited use and very easy to lose or damage. BACK -------------------------------------------------------------------------

EXTERNAL HARD DISK

• It was possible to store more data compare to a floppy drive. • The first hard drives started with a storage capacity of about 10MB (10 floppy disks). • now have storage capabilities into the gigabyte and beyond range (80GB, 100GB, etc). -----------------------------------------------------------------------------------------------------

BACK

CD-ROM

• A CD-ROM drive or disk combined the best features of a hard drive and a floppy. • It allowed us to same a large amount of data. • It is still widely used as a storage for MP3s, video, pictures or computer application (games for PS3, Xbox, Wii, etc). ------------------------------------------------------------------------------------------------------

BACK

DVD

• We think of movies when we heard a DVD • We can save more data by using a DVD compare to a CD-ROM • DVD (4.7GB or more) can hold more than a CDROM (700MB) • We need to have a DVD player to play it. -----------------------------------------------------------------------------------------------------

BACK

FLASH DRIVE

• It is also called a pendrive, thumb drives, USB drive or memory stick. • It is small in size and can be carried easily. • It can hold 512 MB to 8 GB • We can plug it into the USB port of a computer and laptops similar to External Hard drives (Hard disk). • It is also used for file backup or transfer. ----------------------------------------------------------------------------------------BACK ---------------

CLASSWORK ACTIVITY

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Find a folder called “ 20 April 2009 ” on the desktop. Then double click to open. Click on “classwork” document. Fill in both of your name and class you are study in. You can discuss the answers with your partners, but to type in your answers in complete spelling / sentences. Once finish, SAVE the document by clicking on: File > Save As (Type your name and class). Finally, put your PENDRIVE / FLOPPY DISK into the computer USB and copy the “20 April 2009” folder to your BACK own pendrive or floppy disk.

Conclusion