Close to it..... OK not that they were common in 1976-77 but this was a computer back then.
What were computers like in the 1970s?
At the beginning of the 1970s there were essentially two types of computers. There were
room-sized mainframes, costing hundreds of thousands of dollars, that were built one at a time by companies such as IBM and CDC.
There also were smaller, cheaper, mass-produced minicomputers, costing tens of thousands of dollars, that were built by a handful of companies, such as
Digital Equipment Corporation and
Hewlett-Packard Company, for scientific laboratories and businesses.
Still, most people had no direct contact with either type of computer, and the machines were popularly viewed as impersonal giant brains that threatened to eliminate jobs through
automation. The idea that anyone would have his or her own desktop computer was generally regarded as far-fetched. Nevertheless, with advances in
integrated circuit
technology, the necessary
building blocks for desktop computing began to emerge in the early 1970s.