The qwerty keyboard was created when typewriters were invented. The mechanical action of typewriters was slow, so the keyboard was designed with oft-used letters in the left hand!
The design of the modern computer keyboard was finalized in the 1970s and 1980s, although it shared the original layout of the typewriter, developed by Christopher Latham Sholes in 1868. Over the 100 years after the typewriter's invention, only minimal changes were made to the keyboard even though it was used by many companies.
The first commercial typewriter with the modern QWERTY layout that we use today was produced in 1873, based on a design by Christopher Shole, who invented it in 1867. This technology was first adapted to computer use in 1948 for the BINAC computer, an early computer designed for Northrop Aircraft Company.
Between 1943 and 1946, the Moore School of Electrical Engineering at University of Pennsylvania built ENIAC (Electronic Numerical Integrator and Computer)which was the earliest computer that contained a keyboard