Dr. John V. Atanasoff and his assistant Clifford Berry built the first electronic digital computer. It was called the Atanasoff-Berry-Computer (ABC)
It had no single inventor, it was independently invented in many countries by different groups of people.
Computers, Which are technically superior to mainframe are called super computers.
Mainframe computers first used star topology
Mainframe computers are high-speed, multi-purpose machines that cost millions.
IBM system 3 and AS-400 are some examples of minicomputers.
IBM
Thomas Flowers of the british post office in 1942. It was called Colossus and was used to crack the German high command's cyphers.
mini and mainframe computers
no
For a mainframe with terminals, data processing takes place on the mainframe computer only as the terminals are 'dumb'. Conversely, in a network of computers, each computer has its own processor.
yes
There are not a large number of mainframe jobs available at this time. Computer programmers will be around as long as there are computers. There are so many different brands of computers available.