input, output and storage pmt flashcards
give two types of magnetic storage
hard drive
floppy disk
magnetic tape
give three examples of input devices
keyboard = touchpad
mouse=barcode reader
microscope=magnetic stripe reader
webcam=etc
give an example of a device which is used for both input and output
touchscreen
what name is given to the areas on a CDs surface which have been burned into grooves by a laser
pits
what does CD stand for
compact disc
give three examples of output devices
speaker, monitor, printer, projector
which has the highest typical storage capacity:CD , DVD or blu ray
blu ray
in hard disk drive, what is mounted at the end of the actuating arm
read/write head
give two types of magnetic storage
hard disk drive, floppy disk, magnetic tape
which storage device has typical capacities in the range 500gb-5TB
Hard disk drive
give two disadvantages os SSDs
high cost per GB and limited lifespan
what does ROM stand for
read only memory
describe the structure in which information is stored in flash memory
information is stored in blocks which are combined to form pages
what is meant by non volatile
a non volatile storage medium does not lose its information when power is lost.
which two types of logic gate are used in flash storage
NAND AND NOR
