Home Task 4: Digital Systems Joanne Pearce▸ Task 4: Digital Systems Joanne Pearce▸ Task 4: Digital Systems By fromgplus. Published on June 25, 2018. 0 How has communication changed over time? Have students investigate communication methods for visual or hearing impaired. Discuss global communication systems, Morse Code, Flag. #cserTask4…Braille: Deciphering the Code… G+ Comments no plus ones, 0 comments 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.