Apparently Motorola had started work on their PDP 11 inspired 6800 in 1971, same year the Datapoint 2200 terminal was released, and would end up shipping it in 1974, same year Intel released their 8008 successor the 8080 (which the Altair 8800 was based on), so even without Intel's calculator (4004) and terminal (8008) chips we'd still have had single-chip LSI CPUs in a similar time frame.
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Apparently Motorola had started work on their PDP 11 inspired 6800 in 1971, same year the Datapoint 2200 terminal was released, and would end up shipping it in 1974, same year Intel released their 8008 successor the 8080 (which the Altair 8800 was based on), so even without Intel's calculator (4004) and terminal (8008) chips we'd still have had single-chip LSI CPUs in a similar time frame.