Home Task 4: Digital Systems Task 4 option 3 Task 4 option 3 By jossy78. Published on January 10, 2022. 0 My students will research a digital system such as a telephone, how we watch movies, etc and they will organise this information onto a timeline. Share this:TwitterFacebookLike this:Like Loading... + There are no comments Add yours Cancel replyYou must be logged in to post a comment. This site uses Akismet to reduce spam. Learn how your comment data is processed.