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4 Computer Stages. Input Processing Output Storage. 3 Devices used to store data. Hard Drive Floppy Disk/USB Flash Drive CD/DVD. 2 Types of Files stored on Hard Drive. Programs Data. General Rule of Thumb for a Hard Drive. Purchase as large as you can afford!!. Speed of a Hard Disk.
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4 Computer Stages • Input • Processing • Output • Storage
3 Devices used to store data • Hard Drive • Floppy Disk/USB Flash Drive • CD/DVD
2 Types of Files stored on Hard Drive • Programs • Data
General Rule of Thumb for a Hard Drive Purchase as large as you can afford!!
Speed of a Hard Disk Is measured in… RPM Revolutions Per Minute
Virus A program that disrupts the normal operation of a computer.
Ways to protect yourself against computer virus? • Anti-virus Program • Backing up your work.
What is a floppy disk? A removable device that magnetically stores data. Generally can store up to 1.44 MB of data. Safety Measures • Keep away from Magnets • Keep away from extreme hot or cold
What is a USB flash Drive? USB flash drives are compact and easy-to-use flash memory data storage devices integrated with a USB interface. Flash drives have more storage capacity. Generally 256 MB and up.
CD-Rom Compact Disc Read Only Memory CD’s can hold from 650 MB to 1 GB of data. This is 450 to 700 times more than you can store on a 3.5 inch floppy disk. CD-R CD-RW CD-Recordable Not erasable CD-Re-writeable Erasable