do
1940s
Analog computers were developed in the late 1920s.Digital computers were developed in the early 1940s.
1940s
Antibiotics were developed in the 1920s and later commercialized in the 1940s.
The first electronic computers were developed in the 1940s. Do you mean 'Who designed the first computer to be sold in 1991?' or do you mean 'Which worker actually completed building a computer just after midnight on 1st Jan 1991?'
No. The first electronic computers were developed during WWII in the 1940s. ARPAnet, widely considered to be the precursor to the internet, didnt come online until 1969.
the diaphragm valve was developed during the 1940s.
The "language" of computers has always been mathematical, Mostly Zero's and One's.
to classify individuals with specific mental disorders.
The basic concept of a memory core is as old as ENIAC, but was not developed into anything like the modern memory core until it was added to the Whirlwind I in 1953. The Whirlwind was designed in the late 1940s as a flight simulator, but it was too slow. This is because the only types of memory large enough (2 kilobytes) at the time were mercury delay and electrostatic storage, the former being slower and the latter being too unreliable. The designers eventually, after years of delay, used a combination of published papers and new magnetic materials to produce a basic memory core.
Vacuum tube, roughly from 1940s to 1958.
Jets were first developed in the mid 1930's. The first German and British jets flew in 1940.