input/output pixels

1.) Activ board pen-input
2.) projector-
3.) printer-output
4.) Acti vote-input
5.) CD/DVD drive-input/output
6.) computer screen/ monitor-input
7.) keyboard-input
8.) wireless internet hob-input/output
9.) headphones-output
10.) Mouse-input
11.) USB flash drive/ jump-drive-input/output