Before revision: Since the 1950s computers have gone from being able to do basic processing to have the capacity to undertake complex, ambiguous and highly skilled tasks such as image and speech recognition, gameplay, scientific and medical analysis and inferencing across multiple data sources.
After revision: Since the 1950s computers having gone from being able to do basic processing to have the capacity to undertake complex, ambiguous and highly skilled tasks such as image and speech recognition, gameplay, scientific and medical analysis and inferencing across multiple data sources.