INPUT
MOTION INPUT
On-screen element can be guided by the user by using air gesture. Air gesture includes the movement of body or the handheld device in air.
eg: 
Based on the video, Dr Hannah's daily activities (gestures) is being recorded
(50:50)
To detect her gesture and movements, they used video sensor and an environmental sensor
(50:44)
One need to wear a special wearable that can helps them to detect body position, location and movement data
(50:54)
All the gesture and movements is generate into a 3D-video
(50:52)
Last but not least, the movement and gestures is then transmitted into a graph data where it will eventually shows body position, location and movement data
(54:33)
KEYBOARD INPUT
Keyboard is an input device that contains keys users press to enter data and instructions into a computer or devices 
Based on the video 
Voice input
Voice input is the process of entering input by speaking into a microphone. 
speech recognition which is known as voice recognition is the computer or mobile device's capability of distinguish spoken words.
With motion input, sometimes called gesture recognition, user can guide on-screen elements using air gestures.
(slide16)
eg
Leap Motion
Kinect
Wii
Based on the video,in that analogue world of 20th- century phone,the speech was converted into a electrical signal using a handset.
voice signals would travel along the wire detected by the receiver at the other end and then be converted back into sound wave to reach the ear of whoever had picked up.
From that codes,the original audio or voice can be clearly reconstructed and regenerated at the other end.
VIDEO INPUT
Video input is the process of capturing full motion images and storing them in a computer or mobile device's storage.
the person use video input to display the result on the screen.
another example this guy using video input .
video input used to record the situation along the road
Encoding data as holes punched in cards. This card are passed over sorting machines. Each of it handle 22,000 cards in a minute (15.42 in video)