Respuesta :

A- There were no operating systems in the early days. Computing was done by typing in code... Which was why operating systems were made.

True, there was no operating system in early days of electronic digital computing.

Operating systems were developed because processing was performed by writing in code.

The first real-world operating computer was GM-NAA I/O, developed by General Motors' Research department in 1956 .

Users created the majority of the earliest operating systems for IBM mainframe computers.

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