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

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

To determine if your computer is secure, you can look for some indicators. Firstly, ensure your operating system and software are up to date as updates often contain security patches. Secondly, use reputable antivirus software to scan for and remove any malware. Lastly, enable a firewall to monitor and control incoming and outgoing network traffic, adding an extra layer of protection to your system. 

Computers have significantly impacted the world in both positive and negative ways. On the positive side, computers have enhanced communication, making it faster and more efficient. They have also revolutionized industries like healthcare, enabling better diagnosis and treatment. Moreover, computers have improved education through e-learning platforms, making knowledge more accessible. 

Conversely, computers have also introduced new risks. They have increased the potential for cyber-attacks, leading to data breaches and privacy concerns. Additionally, computers have automated many jobs, leading to unemployment in some sectors. Lastly, the reliance on computers has made society vulnerable to disruptions in case of system failures or cyber warfare.