Types of Data

Types of Data

1. From Latin: Datum

2. Numerical

   • Integer
     • No decimal points
     • Positive or negative
   • Decimal
     • Real Numbers
     • Positive or negative

3. Alphanumeric

   • Character
     • One character
   • String
     • Numbers, letters and special characters

4. Audiovisual

   • Listen or watch

5. Physical

   • Taken form the environment

6. How is data processed?

   • Data Entry
     • The input device sends information to the RAM
   • Data processing
     • CPU process information and sends it back to RAM
   • Output
     • Results are shown

7. Variable

   • Identifies values, saves them for a while

8. Constant

   • Has a permanent value

9. How to assign a name for them?

   • Just alphabet, numbers and "_"
   • Begin with a letter
   • Shorter than 255 Characters

10. Boolean

    • True or false values

11. How much space do data utilize in memory?

    • Character
      • 1 Byte per character
    • Byte
      • 1 Byte
    • Short
      • 2 Byte
    • Int
      • 4 Byte
    • Long
      • 8 Byte
    • Float
      • 4 Byte
    • Double
      • 8 Byte
    • Boolean
      • 1 Byte

12. How to assign a variable a constant?

    • Name <- Value
    • Gender <- "M"

13. APA

    • Cardenas, D., Muñoz, J. A., Muñoz, O. A., S. Q., Del vivar, V., Esparza, M. I., & C. S. (n.d.). Retrieved August 27, 2016.