1.2 storage media

Question 1

magnetic storage

Answer 1

most common form of secondary storage within pcs

type is a floppy disk but these have been replaced by ssd

Question 2

magnetic tape

Answer 2

high storage capacity but data has to be accessed in order (serial access) so its generally used only by companies to back up or archive large amounts of data

Question 3

magnetic storage charecteristics

Answer 3

large capacity and cheaper per gb then ssd

not durable and not very portable when powered on moving it can damage the device

relatively quick access speed but slower than ssds

Question 4

optical storage

Answer 4

uses a laser to project beams of light onto a spinning disc

slowest of the four types of secondary storage

traditionally internal but external disc drives can be bought from devices like laptops

Question 5

optical storage characteristics

Answer 5

low capacity

not durable, discs very fragile and can break or scratch easily

very thin and portable

slowest access speeds

Question 6

solid state storage

Answer 6

ssds are replacing hdds, in modern computers

generally quieter, faster and use less power

memory cards like the sd card in a digital camera or a micro sd card in a smartphone

Question 7

solid state characteristics

Answer 7

high capacity but more expensive per gigabyte than magnetic

usually durable but cheap usb sticks can snab or break

small size makes it portable

fastest access speeds because they contain no moving parts

Question 8

paper storage

Answer 8

relatively inexpensive

can be environmentally damaging and requires physical security methods

Question 9

paper characteristics

Answer 9

low capacity also takes up physical space

poor durability can easily tear

portability varies, can be easily folded, however large stacks may be difficult and expensive to transport