How can we help?

You can also find more resources in our Help Center.

13 terms

Data Representation

STUDY
PLAY
Binary Code
A two state electronic device that is made of two digits.
Advantages of Binary
Arithmitic calculations are easier and needs only two voltages.
Units
Bit, Byte, Kilobyte, Megabyte, Gigabyte, Terabyte, etc
Floating-Point Representation
Made up of the Mantissa and the Exponent
Advantage of Floating-Point Representation
A few number of Bits needed.
Disadvantage Of Floating-Point Representation
Not much accuracy, rounded to a set number of figures.
Text - Control Characters
Non-printable charaters, like enter or space
Text - Character Set
Printable Characters, such as A, B, C or +, -, ?
Text
There is a unique binary code for each characters.
Bitmap Graphics
Stores data as pixels.
Bitmap Graphics - Resolution
The number of pixels in an area. There is high resolution, which is smaller pixels, and low resolution, and that is bigger pixels.
Bitmap Graphics - Bit Depth
The number of pixels used to encode the colour of each pixel.
Storage Calculations
The number of Pixels required to store colour