Explanation

A pointing device is an input interface that allows a user to input data to a computer using physical gestures - point, click, and drag.

Mouse, Light-pen, Trackball & Joystick are examples of Pointing Devices.

Explanation

A program written in a non-machine language is called source code.

Source code refers to the code written in high-level programming languages like C, Java, Python, etc., which must be compiled or interpreted into machine language for execution by a computer.

Explanation

• A computer is built to carry out instructions that are written in a very simple type of language called machine language.
  

Explanation

A machine language doesn't need a compiler to execute its commands.

Assembly Language:One needs an assembler (commonly called a compiler) to execute the commands of an assembly language properly.

Explanation

A trackball is just like a Mouse, touchpad, and touchscreen. 

A trackball is an example of a pointing device.

It is a hardware input device used to control the movement of the cursor or pointer on a computer screen. 

Explanation

A trackball is an example of a pointing device.

It is a hardware input device used to control the movement of the cursor or pointer on a computer screen. 

A trackball is just like a Mouse, touchpad, and touchscreen. 

Explanation

Joysticks are often used to control video games, and usually have one or more push-buttons whose state can also be read by the computer.

Explanation

• Touchpad is also called Track-pad.
• A touch pad is a device for pointing (alternative to the mouse).

Explanation

Bluetooth is a high-speed, low-power microwave wireless link technology, designed to connect phones, laptops, PDAs and other portable equipment together with little or no work by the user.

Explanation

In computing, an expansion card is a printed circuit board that can be inserted into an electrical connector, or expansion slot on a computer's motherboard.