Binary

Binary

1. Images

   • Arranged in pixels
     • Each pixel is a block of colour
       • Data about which colour is stored as a binary sequence
         • They are arranged in bits, an 8 bit binary sequence will be able to store 256 different colours
           • 8 bit = 01001001
           • 2 bit = 01
           • this is called the colour depth
     • Resolution is determined by the amount of pixels, for example 300 x 600
   • reconstructing images
     • Computers reconstruct the images from the information that they are given
       • Meta data
     • They need
       • The binary sequence of the image, for example 010 110 010 001 110 111
       • The colour depth, for example 2 bit
       • The resolution of the image, for example 300 x 400
   • black and white is saved as 0 or 1 depending on which program its been written in

2. Sound

   • Sound waves are analogue meaning that they constantly change in waves
     • To store it digitally it must be converted
       • Analogue to digital converter or ADC