The digital divide refers to the widening gap between those who have access to technology and those who do not. Option 1 is incorrect because the digital divide is not specifically about politicians and their knowledge of computers. Option 3 is partially correct in that the digital divide does involve a division between people who are computer literate and those who are not, but this is only one aspect of the larger issue. The digital divide also includes disparities in access to technology and the internet. Option 4 is unrelated to the concept of the digital divide, as it refers to a division in the workforce based on specialization. The digital divide is a significant issue as it can lead to inequalities in education, employment opportunities, and access to information and resources. It is important to address the digital divide to ensure that everyone has equal opportunities to participate in the digital age.