Answer:
The first one. Important notice sum should be equal to zero before calculating the total sum.
Figure 1: An image — an array or a matrix of pixels arranged in columns and rows.
In a (8-bit) greyscale image each picture element has an assigned intensity that
ranges from 0 to 255. A grey scale image is what people normally call a black and
white image, but the name emphasizes that such an image will also include many
shades of grey.
Figure 2: Each pixel has a value from 0 (black) to 255 (white). The possible range of the pixel
values depend on the colour depth of the image, here 8 bit = 256 tones or greyscales.
A normal greyscale image has 8 bit colour depth = 256 greyscales. A “true colour”
image has 24 bit colour depth = 8 x 8 x 8 bits = 256 x 256 x 256 colours = ~16
million colours.
Grace Murray Hopper invented it
Answer:
Embedded Operating System
Explanation:
An embedded operating system is a specialized operating system dedicated to perform a unique task for a digital device other than your desktop or laptop. For example, we can find this operating system appears in a washing machine to enable user to control the operation of the washing machine. This type of operating system is designed to be more resource efficient. An embedded operating system can also found in cars, digital television, ATM machine, digital camera etc.