1.  How can you tell if your computer is safe?

How safe your computer is can be determined in a number of ways. Start by ensuring that you have a trustworthy antivirus program installed and that it is consistently updated. This will safeguard your computer from viruses and malware. Keep your software and operating system updated with the most recent security patches as well. Be careful when downloading files or clicking on links from untrusted sources because they might be dangerous. Use strong passwords that are different for each account, and turn on two-factor authentication whenever it is practical to add an additional layer of security.

2. Describe three ways that computers have made the world safer and less safe.

Computers have made the world safer in several ways. Firstly, they have enabled the development of advanced security systems that can prevent and detect potential threats. For example, computerized surveillance systems can monitor public spaces and alert authorities to any suspicious activity. Secondly, computers have enabled the creation of sophisticated emergency response systems that can quickly and efficiently respond to crises. For instance, computerized dispatch systems can quickly route emergency services to the scene of an incident. Thirdly, computers have facilitated the development of advanced medical technologies that can diagnose and treat diseases more accurately and effectively than ever before.

However, computers have also made the world less safe in several ways. Firstly, they have enabled the creation of sophisticated cyber attacks that can compromise sensitive information and disrupt critical infrastructure. For example, hackers can use computer viruses to shut down power grids or steal personal data. Secondly, computers have facilitated the spread of harmful content, such as hate speech and extremist propaganda, which can radicalized individuals and incite violence. Thirdly, computers have enabled the development of advanced weapons systems that can cause widespread destruction and loss of life. For instance, autonomous drones can be used to carry out targeted killings without human intervention.