-
1514
The Printing Press was used.
-
The Fax Machine was invented.
-
Ballpoint pen was used.
-
The Chalkboard was used in schools.
-
The Film Projector was used in schools.
-
The Overhead Projector was used.
-
The Computer was invented.
-
The Internet was appeared.
-
The Hand-held Calculator was used.
-
CD/DVD was used.
-
The Smart Board was used.
-
The Interactive Whiteboard was used.