memory & storage devices
Memory in computing refers to the devices that store information that can be there temporarily or permanently.
There are three types of memory :
There are three types of memory :
- magnetic
- optical
- solid state
magnetic storage is where you permanently store data and files. An example of this is your hard disk or hard drive. The way they work is they organize files into different folders, so that when you need to open one it can find it in a more efficient and faster way. This process is called disk defragmenting.
optical storage is data that can be read using some source of light like a laser. This type of data storage cannot delete files and keeps them forever. The disks have read only data which is written on them when they are made. An example of these are CD-ROMS, DVD-ROM etc.
Solid state is a storage type where data is stored electronically instead of magnetically. These storage devices have no moving parts like reels of tape, spinning disks etc. They store data using a special type of memory called flash memory. Examples of these types of storage are USB sticks, SD cards etc;.
optical storage is data that can be read using some source of light like a laser. This type of data storage cannot delete files and keeps them forever. The disks have read only data which is written on them when they are made. An example of these are CD-ROMS, DVD-ROM etc.
Solid state is a storage type where data is stored electronically instead of magnetically. These storage devices have no moving parts like reels of tape, spinning disks etc. They store data using a special type of memory called flash memory. Examples of these types of storage are USB sticks, SD cards etc;.