Demand for consumer goods slowed as wages stagnated.
Explanation:
Though the beginning of the 1920s had the economy booming, that wasn't the case towards the end of the decade. Because of overspending and the excessive use of credit, people became unable to pay back their debts. This eventually led to the stock market crash of 1929.
you could talk about the earliest computers invented and how people had to operate them, you could also talk about how computers receive codes and the first ever code created.