Manual Input Devices

What is input devices?

• Hardware devices place outside the computer

• Hardware devices that use for producing report

• Hardware devices for data entry to the computer

• Hardware devices that allow user to enter data

Keyboards are used to input the following data, except;

• Text

• Number

• Instruction

• Image

Select one disadvantage of using keyboard;

• Enable fast data entry of text

• Entering data is slow when compare with automatic methods

• Information entered instantly appears on the screen

• Very easy to use

What is manual input devices?

• Data is input into the computer by hand / user

• Data is input into the computer directly by machine

• Data is input into the computer by sensor

• Data is input into the computer by actuator

Select one disadvantage of using mice;

• Faster to select icons and option when compare to a keyboard

• Easy to navigate around document and windows

• Small size and less space taken

• Require flat surface in order to work properly

How trackerball works?

• Touch the ball with finger

• Typing the buttons

• By rotating the large ball with hand

• Rolling on the flat surface

A capacitive touch screen..

• Uses pressure and conductivity to work

• Uses a humans electric field to work

• Uses nothing to work

• Uses Hankai students to work

A resistive touch screen..

• Uses pressure and conductivity to work

• Uses a humans electric field to work

• Uses nothing to work

• Uses Hankai students to work

What device doesn't use a ball to move the cursor on the screen?

• Trackerball

• Mechanical Mouse

• Optical Mouse

This device uses two layers, when one layer is pressed down, it affects the electrical current on the bottom layer.

• Resistive Touch Screen

• Microphone

• Mechanical Mouse

• Trackerball