What is the information volume of a picture that occupies the entire computer

What is the information volume of a picture that occupies the entire computer screen with a resolution of 1024 * 768 and a palette of 65536 colors?

To work with a palette of 65536 colors, you need to encode each color using two bytes (16 bits). This will make it possible to encode 2 ^ 16 = 65536.
The full screen of the monitor is 1024×768 = 786432 pixels. The state of each pixel is described by two bytes. Accordingly, the whole picture will consist of 786432×2 = 1 572 864 Bytes.
This amounts to 1,572,864: 1,024 = 1,536 Kilobytes.
1536 Kilobytes are 1536: 1024 = 1.5 Megabytes.
Answer: the information volume of the picture is 1.5 MB.