digital video cam

sensor  detects  light  going  into  the  camera  through  the  lense

the  sensor converts the  light  into  electriacl  signals theses signals

are  turn into  digital  values  the  values  are  orgnized  and  stored as  files this crates a  lot  of  data we  want  to  keep  the  file  size  small

to  do  this  we  use  compression .the  software that  compress the file is called  a codec you can  get  diffent types of codec  which  gives  you  difrent  files

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