Usually one at a time unless you are talking servers.
no
Very many people.
People who use the computer are often simply known as "users".
it allows many users
That is impossible to answer. As of 2012 Apple has about 15% of the computer market share.
a. About 200b. About 5000 users
All 10
Computer users who are not computer professionals are often referred to as "end users" or "casual users." They typically use computers for basic tasks like browsing the internet, using office applications, or consuming media, without having specialized technical skills. In some contexts, they may also be called "lay users" or "non-technical users."
Time sharing system allows many users to share the computer simultaneously. It is used when several users are linked through communication networks to a single computer.
Brain computer interfaces allow computer users to communicate and run computer commands using specialized computer equipment that is placed on the users head.
The People Who use The Computer. Therefore Them Being The Users :)
A CPU, or central processing unit, is considered to be the brain of a computer and is responsible for making decisions. A CPU helps users the same way that a computer helps users, computers are able to assist humans to do many things more quickly and more easily.