13 terms

Data Representation

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.
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 +, -, ?
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