What significant impact did the IBM PC have in the 1980s?

The IBM PC played a crucial role in the legitimization of personal computers during the 1980s. Prior to the introduction of the IBM PC, personal computing was often seen as niche and limited to hobbyists or specific professional environments. IBM’s entry into the market brought a level of credibility and recognition that was essential for the acceptance of personal computers in businesses and households.

The IBM PC established a standard architecture that allowed for compatibility among various hardware and software products, which encouraged innovation and development within the personal computing industry. As a major corporation, IBM's involvement also signaled to other manufacturers and consumers that personal computers were becoming mainstream, which prompted widespread adoption. Consequently, this legitimacy helped to fuel growth in the personal computer market and expanded its use significantly throughout the decade.

Other options, while related to the period, do not accurately reflect the impact of the IBM PC. For instance, the decline of personal computers and restrictions on software development did not occur; instead, the presence of the IBM PC stimulated growth and creativity in the industry. Additionally, prices actually saw a trend of decreasing due to competition and expanded production, rather than an increase.