TLE REVIEWER

Preventive Maintenance and Troubleshooting

• Preventive maintenance aims to reduce the risk of equipment failure and prolong lifespan through regular maintenance tasks.
• A common reason for a computer not powering on is a faulty power supply.
• A beeping code of one long and two short beeps typically indicates a graphics card issue during the POST (Power-On Self-Test).
• Regularly backing up files protects against data loss, ensuring recovery in case of hardware failure or corruption.
• If a computer slows down, users should consider cleaning up unnecessary files, uninstalling unused programs, or upgrading hardware components.

Display and System Time Issues

• If a computer turns on but there's no display, check connections, replace the monitor, or troubleshoot the graphics card.
• Persistent incorrect time and date settings may suggest a failing CMOS battery on the motherboard.

Operating Systems Information

• Windows is recognized as the de facto standard operating system for both home and business environments.
• Windows 2000 was the first OS to utilize DVD-ROM for installation.
• Windows XP was officially released in October 2001.
• A unique feature of Windows 10 is its virtual desktop capability, allowing multiple desktops for different tasks.
• Windows 11 was launched in October 2021.

Android Operating System Features

• Android Cupcake introduced on-screen keyboards and widgets to enhance user interaction.
• Android Éclair brought significant improvements, including voice actions and better Google Maps integration.
• Android Honeycomb was designed for use on tablets, operating on various screen sizes and resolutions.
• macOS Monterey was released in October 2021.
• 'Rome' refers to a version of Apple's operating systems focused on enhancing performance and user experience.

System Functions and Software Components

• The registry in an Operating System serves as a database for system configuration settings and options.
• Device drivers are software components that facilitate communication between the operating system and hardware devices.
• Storing document files on a separate drive improves organization and allows for better data management and recovery.
• The primary function of a browser is to access, retrieve, and view content on the World Wide Web.

Backup and Security

• Creating backups is crucial to prevent irreversible data loss caused by hardware failure, malware, or accidental deletion.
• Android Marshmallow introduced the first version of Voice Actions, enhancing hands-free operation.
• The primary color of Android's robot mascot is green.
• Android Holo design was introduced to offer a modern, streamlined interface.
• A disk defragmenter improves system performance by reorganizing fragmented data on a hard drive.
• Antivirus programs are designed to detect, neutralize, and eliminate malware threats.
• Basic diagnostic routines on systems can be performed using built-in tools like Windows Task Manager or Resource Monitor.