1.3 Storage

1.3 Storage

1. Three types of storage

   • optical
     • A laser light creates marks in a pattern on the disk. laser lights detects where the marks and translets.
   • magnetic
     • Magnetic disks are read and written to with a moving hed inside the disk drive.
   • solid state devices
     • It retains an electronic charge using logic gates

2. Cloud Storage: refers to saving data in an offsite location maintained by another party

3. Secondary Storage: A non-volatile storage medium which stores files and programs

4. Capacity- The amount of space that is available to store files

5. Durablity- will the device withstand a certain amount of damage wIthout corrupting files

6. Speed- how quickly a computer can read and write data from a storage device

7. Portability- how easy a device is to be transprted

8. Cost-The cost of a device is compared in terms of cost per GB

9. Reliability- how consistently does it perform?