Usb port
The port is an external connection device on the computer which is used to connect different peripherals. Concretely it is a socket (and the corresponding plug) that enables an external device (peripheral) to be attached to a computer (usually to a motherboard or adapter card).
it is used to interface between controller and peripheral device.. peripheral device otherwise called external device such as LED,LCD...
joystick
joystick
The most common pointing device used by people around the world is a mouse.The new most popular is the touch screen and second is the track pad on your laptop. Then the stylus is the next device which is used by people. These are all few popular and most used pointing devices.
mouse
A pointing device is used to refer to devices that are used to manipulate a virtual space. A computer mouse would be considered a pointing device. Touch surfaces are not considered pointing devices because they are manipulated directly by the user's inputs without the need for a third party object.
An Uplink Port is a port on a connectivity device, such as a hub or switch, used to connect it to another connectivity device.
The port is an external connection device on the computer which is used to connect different peripherals. Concretely it is a socket (and the corresponding plug) that enables an external device (peripheral) to be attached to a computer (usually to a motherboard or adapter card).
Something used to point with - eg a stick.
A pointing device is an input device used to manipulate a graphical user interface on a computer screen. A popular example of a pointing device is the computer mouse, which allows users to move a cursor, select objects, and interact with software applications by clicking, dragging, and scrolling. Other examples include trackpads and styluses.
In the past external modems connected to the COM (or serial) port. However, most modern external hardware is USB these days, modems are no exception.