Unit 1.3 Storage

Unit 1.3 Storage

1. Storage Forms

   • Solid State
     • Made up of microchips
   • Optical
     • Laser light leaves markings on disks that are inside the disk drive
   • Magnetic
     • How magnetized each part is represents either 1 or 0
   • Auxillary Storage

2. Storage Device's Characteristics

   • Capacity
   • Speed
   • Durability
   • Cost

3. Data Types

   • Text
   • Date
   • Real
   • Integer
   • Boolean

4. Storage Units

   • Gigabyte
     • 1000 MB
   • Terabyte
     • 1000 GB
   • Bits
     • 1 of itself as it is the smallest storage unit.
   • Nibble
     • 4 bits
   • Byte
     • 8 Bits
   • Kilobyte
     • 1000 Bytes
   • Pettabyte
     • 1000 TB

5. Data Capacity

   • Sound
   • Images
   • Text files