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46 Cards in this Set
- Front
- Back
Which is not secondary storage
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hard drives flash drives removable are (Primary storage is not)
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Term for 1 Quadrillion
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A Pedibyte
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Storage devices access data
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In millions of a second
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Access time
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Time it takes the computer to located an item on computer
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Time it takes memory to access data
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Billionth of a second
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1 megabytes =
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1 million forty something
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Which is a magnetic storage medium
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Hard drives and floppy drives-(DVD, CD are not)
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Capacity
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The number of bytes a storage can hold
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Reading-
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Term for process of transferring data and information from storage into memory
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Writing-
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Term for process of transferring data and information from memory to storage
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Perpendicular Recordings are
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10x greater -Hard disk(Vertical)
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Hard disk spin at
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5400rpm to 15,000 rpm
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What happens when a read write head touches the service of a platter
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Get a Head Crash
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Longitudinal
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Tradtionally Horizontal
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External hard drive
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Plugs into a port
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Removable Hard disk-
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A disk that you insert and remove
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Which of the following is not a type of disk controller--(SAT, SCSI are
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246
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Which of the following is not an advantage of SAS over parallel SCSI
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less expensive, support many more devices at once-
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A typical floppy disk has storage capacity of up to
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1.44 megabytes
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Optical Disk-
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Flat round optical storage
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High Power laser light creates –
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Pits
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ReWrite CD –
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Can be erased and re-written
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CD Rom hold up to -
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1 GB
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Burning-
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Process of writing on an optical disk is called
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A mini DVD-
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UMD-256
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PC Card
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Thin credit card size device commonly used in notebook computers
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Express Card Module
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Removable flash removable that goes into a express card slo
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Tape Drive
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Requires a sequential access of data
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All of the following are flash memory devices except-
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Memory stick
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Storage capacity of 64 MB to 16 GB-
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Compact Flash
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Secure digital
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64mb-8GB
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XD Picture Card
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64mb-2GB
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Memory stick-
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256mb-4GB
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Smart Card-
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ATM
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Enterprise
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A large business
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Micro film-
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Has the longest life expectancy
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A floppy drives contains
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144 mb-False
CHECK ANSWER |
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Are computers disk size the same as what is advertised by retailers
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Actual size is different because of bad sectors-True
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Removable hard disk have storage up to
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750GB
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Online storage disk can be saved it’s to the hard drive-
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True
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A floppy disk is –
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True
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CDRW-You can erase-
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True
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CD Rom is read only-
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True
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Tape drive is obsolete-
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True
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Current USB Flash-
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True
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Smart Cards can be updated -
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True
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