Android, many phone brands use the Android OS. Unlike Apple, which is the only technology company with IOS.
Answer:
These are some way I know
Answer: Awnser below.
Explanation:
Basically, what you're going to need for a computer from my basic knowledge is a motherboard, of course, this is so you can actually use your computer. You'll need a PSU, or so called, a power supply. This will give power to your motherboard and the other components with it. You will need a CPU, this is basically the brains of the computer. This will run your operating system, and main componets. A GPU, this will give you a display for your monitor. And of course, ram. Ram will be giving you display for your monitor, and for running tasks.
For more components, you would need a hard drive, or an SSD, which will store your files and operating system. And of course, a keyboard, mouse, and monitor.
B. Decreases because if nobody needs certain goods and services, people who sell that will go out of business