It is interesting that you should ask this question. Bradbury wrote Fahrenheit 451 in the 1950's. Although many of the items he discusses are fears that developed after the Nazi regime was overthrown, the inventions he talks about are things in his imagination. Look at how many of them have come true!! Mildred watches TV on walls and interacts with them. In the 1950's TV screens were the size of a laptop monitor and in black and white. People wanted one in their home, and schools were beginning to use them in the classroom. In many instances, they were replacing books as a form of entertainment. However, there was no interaction with it. She listens to music with an earplug in her ear. They didn't have radios with earsets. Radios were pieces of furniture.
Later when Montag goes to visit Faber, he passes a bank,
"...he had visited the bank, which was open all night every night with robot tellers in attendance...." (92)
Is this our modern day ATM??? In the 1950's you had to go personally to the bank and make a transaction, and there were restricted hours, which became known as "banker's hours". This was generally 10AM to 3PM.
The big event in the book is that in 1945 we dropped the atom bomb on Hiroshima and Nagasaki to end World War II. Now, in the book, the whole war takes less than a second.
"The war began and ended in an instant." (pg 158)
The books was definitely written as a futuristic book. Is it amazing how accurate Bradbury was in his predictions.