The  future  of  the  television  is  undoubtedly   digital .Television or video   signals  can  be   converted  from  their   normal  analogue  form  (continuously  varying )   into a  digital   form .Which  consists  of  a  series   of definite   pulses  rather  than  Morse   code  .Digital  signals   can  be transmitted  ,compressed,and  manipulated  by  computers  without  any " noise"affecting  the   data  .One  of  the  advantages    of   digital  technology  is   that   video  data  can  be  manipulated  to  make  interactive  television  possible.Interactive "  video on  demand  "(VOD) service  allow   users  to  watch  the  material  of  their  choice   from  a  large   central  video    vault .A  digital  server     enables   many  users  to  watch  the  same  film.Starting  at  different  times,by  sending  the video   data  in  small  " packets".to  them.Other  service  include  news programmes  ,games,music, and electronic shopping.With   the  latter  the  user  "scrolls" through  a  virtual   shop. and  uses  a  credit card to  buy  items.Which  are  then  delivered   to  the  home  within  days.
CINEMA BY COMPUTER.
Disney productions' toy story (1995)was the world's first feature film to be generated entirely on computer.A team of 27 animators worked on the film .producing an average of 31/2minutes of footage per week .Some of the characters and scenes were created solely on computer,where as others were set up with models.
INTERACTIVE TELEVISION
CINEMA BY COMPUTER.
Disney productions' toy story (1995)was the world's first feature film to be generated entirely on computer.A team of 27 animators worked on the film .producing an average of 31/2minutes of footage per week .Some of the characters and scenes were created solely on computer,where as others were set up with models.
INTERACTIVE TELEVISION


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