a human interface device is the device the human uses to communicate with a computer, like a mouse or keyboard. Human computer interface refers to all of those working together to let the human control the computer.
HID Human Interface Device
A cordless trackball is a type of human interface device for the computer. Specifically, it is an input device used to control the mouse cursor on a computer screen buy way of spinning a ball on top of the device with your fingers.
This is usually refered to as a Human Interface Device (HID), or just an "input device."
A keyboard is a Human Interface Device. This enables you to enter information and commands into a computer by pressing keys in various sequences.
Cant receive emails
if we think of human brain as a computer what is its input device output device
They don't ! The computer will work perfectly well without human interaction. The interface is solely for humans to interact.
It is not a phyiscal input (or human interface) but it is a data input device. which means it will come under external drives.
wihtespace
Uttering a speech command or performing a mouse gesture refers to some of the hardware and software elements of the human-computer interface. The VCR and the mouse are examples of the hardware elements.
Keyboard and mouse.