None.
That is, by "computer" I mean a "general purpose electronic computer", not a mechanical machine such as Charles Babbage's (and his predecessors') mechanical computing machines, and not an electronic circuit that "computes" only a very restricted set of "answers".
So, the first general purpose electronic computer (ENIAC) was built in 1946 and with ~18,000 vacuum tubes, since first Silicon transistors were produced in 1954, although "transistors" were patented in 1925 (Canada) and 1934 (Germany); concrete semiconductor (Germanium) models were made and studied in labs in 1947 and later.
First generation computers CPUs were made of dozens of 19 inch racks each containing hundreds of vacuum tubes, capacitors, resistors, etc. A typical CPU had from 1,500 tubes to 30,000 tubes. The peripheral controllers were typically one or two racks each, with similar numbers of tubes, etc. per rack. These were not small machines.
Because the first, second, and third generation computers were also digital computers.
Electro-Mechanical Computers were used before first generation of computers.
no, first generation computers used vacuum tubes.
The speed of computers increased from one generation to the next generation, and to the next generation, and so on.
First Generation computers were computers made out of Vaccum Tubes. They were soon rejected due to the extreme heat and electricity absorption.
Second Generation computers. The VAX mentioned above is just a single model of first generation electronic computers.
By most definitions, first generation computers were the ones built with vacuum tubes.
The first minicomputers were second generation computers, but the most well known minicomputers were third generation computers.
This refers to the line of processors. Intel recently released the second generation "Sandy Bridge" processors that were preceded by the first line of iCore processors (i3, i5, i7)
Because the first, second, and third generation computers were also digital computers.
Second generation computers are often called transistorized computers. The transistorized computers are more advanced computers than the first generation of computers.
Electro-Mechanical Computers were used before first generation of computers.
FIRST GENERATION
first generation computers
First generation computers.
No computers.
no, first generation computers used vacuum tubes.