Computer Security and Internet Safety.pptx
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This document provides tips for securing a computer and network, staying safe online, and protecting privacy. It recommends enabling automatic updates, antivirus software, and firewalls; using strong passwords; encrypting sensitive files; securing wireless networks; checking browser security settings; avoiding phishing and malware; using public Wi-Fi safely; enabling two-factor authentication; choosing secure usernames and keeping answers private; understanding cookies and do not track requests; blurring personal data in photos; and creating a privacy policy for websites that collect information.
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An operating system acts as an interface between the user and hardware, executing processes, managing resources and files, and providing an efficient environment for users to run programs. There are several types of operating systems including batch, time-sharing, distributed, embedded, and real-time operating systems. A batch operating system runs jobs offline without direct user interaction, a time-sharing system allows for multitasking and user interaction, a distributed system handles jobs across networked nodes, an embedded system operates within devices like cars or appliances, and a real-time system prioritizes timely task completion.
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- 1. Computer Security and Internet Safety
- 2. Securing Your Computer • Enabling automatic updates on Windows (OS) • Install updates on Mac • Updating and maintaining antivirus software • Enabling windows firewall • Physically protecting computer and laptop • Using password management software • Encrypting files contains with sensitive data
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