MEMORY

Adv and Dis of SOLID,OPTICAL,MAGNETIC

solid memory (micro chips)

solid memory is found in things like a flash drive and you can read and write data or files on them and they don't break easily as they don't have any moving pieces inside them

ADV

it doesn't brake easily


you can read and write on it (like a hard drive)


cheap to make and is getting cheaper to buy


you can get up to 128GB onto some drives


very portable

DIS

It can carry viruses


The more storage the more money it costs

OPTICAL

optical memory is a disk that is read or written on by lasers. This is why DVD and CD players have a small red laser reader inside, the disk is read by a laser because the laser reads the light reflected off the flat part and not on the little dimples

DIS

Have to be read or written by a certain type of reader


slower access time and have to wait for it to load up all data stored on disk


can be scratched or broken if not cared for properly


cant be read if to scratched or damaged

ADV

Portable since they are so small


very cheap


durable and last a very long time if cared for correctly

Magnetic Memory

magnetic memory is things like floppy disks and hard disks.

they are read using a head in the disk drive

Big image

DIS

it contains moving parts which means it brakes very easily


can be wiped by magnets


can be scratched and damaged easily


reader picks up on everything from dust to finger prints covering hard disk


costs a lot to get it recovered if data is losts

ADV

portable size


cheap


holds a lot of memory