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The purpose of this study was to determine the strategy of teacher Pak in implementing modern-based learning at the junior high school level. With a qualitative descriptive research method with a literature study approach or library research. Christian Religious Education (PAK) plays a very important role in shaping the character, nature, and behavior of students, and the most important thing is the growth of their faith. Currently, in the twenty-first century, when internet technology is widely used to process information, this has significant consequences for the world of education, with both positive and negative consequences. Digital learning is an effort to improve the quality of learning and not just utilizing digital tools in the classroom. Therefore, digital learning cannot be a trend to use digital tools but a responsibility to improve the quality of learning. By mastering digital competencies and the availability of facilities that support the implementation of digital-based learning, it can be applied maximally and teachers can pour out their creativity to create a new innovation in learning. The limited devices owned by students as a supporter of the learning process are one of the obstacles in implementing technology in the digital transformation era besides signals that we cannot control because not all students are able and come from families with upper economies who at least have android or laptop facilities.

This research explores the integration of Augmented Reality (AR) technology into custom gift products by Tricksy.co to create a more interactive and personalized gift-giving experience. By utilizing EyeJack Creator, a platform for creating AR photo markers, the system allows customers to design gifts that display personalized videos when scanned. The process includes generating AR markers, integrating QR codes, and ensuring compatibility with both iOS and Android devices. System testing confirmed that the AR markers successfully displayed the videos as intended, with smooth functionality across different platforms. However, slow internet connections impacted the speed of AR content downloading. This study highlights the potential of AR to revolutionize the gift industry by adding a unique digital layer to physical gifts, offering both emotional and interactive value.

The shipping industry is closely related to economic growth in various countries. This transportation is very dependent on export and import activities. As the country's economy improves, especially in Asia, the maritime transportation business in Indonesia will also develop. The pattern of sending goods via sea transportation has changed, especially in terms of bulk transportation. which demands modern technology such as automation and intelligent control systems. This research aims to design and develop Android-based spreader control using Arduino Mega 2560 on a floating ship. This project is designed to increase efficiency and ease of operation in the loading and unloading process on ships, which previously still used manual control with a remote control or joystick which had limitations such as limited visibility. In this research, the spreader control system is connected to an Arduino Mega 2560 microcontroller via the HC-05 Bluetooth module, allowing the operator to control the spreader via an Android device. Test results show that data is obtained at a distance of 1 to 13 meters, the Android-based spreader control system shows a response time ranging from 1 to 9 seconds, which shows that the system is functioning properly. At a distance of 14 to 19 meters, the response time increases to 18 seconds, indicating quite good system performance. This shows that there is quite significant latency in data transmission. However, the system still managed to carry out spreader control well. At 20 meters, the system failed to respond to the spreader control. This shows that the effective range of this Bluetooth module is below 15 meters. This research makes a significant contribution to the development of automatic control technology in the shipping industry, especially in the use of intelligent control systems integrated with mobile devices.

In today's digital era, advances in technology and science are growing very rapidly. Of course, advances in technology and science affect various things. One of them android-based gadgets is utilization to make it easier to find information or knowledge that can be easily accessed. This research aims to design and create an application for the introduction of endemic animals in Indonesia. Endemic animals are species that only exist in certain places and are not found in other places, such as islands, countries, or other geographic areas. Android is an operating system that has an open source nature that allows it to make it easier to recognize and access information about Endemic Animals in Indonesia. The research method for designing and making applications uses the Software Development Life Cycle (SDLC) method. The method begins with planning, analysis, design, implementation and testing. The final result of this research is an application for the introduction of endemic animals in Indonesia based on android. This application was successfully made with appropriate material and quiz features. Function testing on each feature is done with the black box method to ensure the material runs well to display images and material and the function on the quiz feature can function properly. Tests were also conducted with 3 android devices with different versions, namely versions 10, 12, and 13.

Most dairy farmers in our country still rely on human labor to monitor the condition of their farm areas. The current problem is the manual security system for barns, meaning that the barns need to be constantly checked around the area at all times. This is especially risky at night, when livestock theft is more likely to occur. This research implements PIR sensor technology to monitor movements around the barn, MC-38 magnetic sensors for gate security, and utilizes Android smartphones as devices to display barn data processing results, allowing real-time monitoring of barn security. The research is conducted using the Research and Development (R&D) method by Borg & Gall, encompassing only six steps. The results of the system evaluation by experts show a score of 3, falling between 2.1 – 3.0, categorized as Valid. User validation results show a score of 27.2, also falling between 2.1 – 3.0, categorized as Effective.

In the context of rapidly evolving mobile technology, memory management has become an important aspect that determines the efficiency and effectiveness of Android operating systems, particularly on mid- range smartphones. The objective of this research is to identify, analyze and develop memory management strategies that can improve the performance of the Android operating system on resource-constrained devices. Using an experimental approach, this study evaluates various memory management techniques, including the use of optimized caches, memory compression, and page replacement algorithms, to determine the most effective combination to improve system responsiveness and performance. The results show that the implementation of appropriate memory management strategies can significantly improve operating system performance and user experience while extending battery life. These findings provide valuable information for application developers and device manufacturers to optimize their products for mid-range smartphone competition.

The application "Android-Based World State Flag Recognition" aims to provide users with information about the flags of countries around the world. The app is designed with a great interface and uses image recognition technology to identify flags. Users can explore flags, get brief historical information, and improve their knowledge of the visual aspects of the country's identity. The app uses up-to-date online resources to ensure the accuracy and relevance of flag information. The search feature allows users to quickly find the flag of a particular country. In addition, the app provides an exam mode to test the user's knowledge with a short quiz about flags. With the integration of Android technology, users can access this application easily on various mobile devices. The main goal is to provide an interactive and fun learning experience around the visual identity of the countries of the world.

Technological developments in the digital world have now begun to increase the use of operating systems such as Android which are often used on electronic devices such as smartphones and tablets, penetrating various fields of human life. The use of these devices is essential in facilitating various tasks, especially digital ordering and transactions. This integration provides better transaction protection, more effective usage, and benefits and convenience. Cloud computing makes it easy and efficient to integrate digital ordering applications into payment systems. Observations show that these integrations provide user convenience and purchase trends, assist marketing strategies, and generate more accurate business decisions. If carefully developed and implemented, this integration has great potential to change the way business is done in the digital age.    

Currently we see how the development of mobile phones has greatly influenced games or video games. Now with Android-equipped phones that can load more data stored on the phone, "games that previously could only be played offline are being developed, such as games on the Internet that can be played online indefinitely"¹, in this case. , games are also developed with the term "online games" which use data in their work. This continuously developing game then influences the lives of teenagers. The number of mobile devices is also increasing, this also has the influence of mobile legends which also increase the needs of children during the Covid pandemic, so the number of mobile phones also increases. In this magazine we will tell you about the effects of the Mobile Legends game. This research explains the influence of the Mobile Legends game on teenage behavior. This game is now widely spread among teenagers and has an impact on their socially unhealthy development in society.    

This article aims to understand the impact of gadget use on  childhood as well as implement  solutions on the impact of gadget use on  childhood. This gadget is a medium  used as a  modern communication tool. Gadgets make human communication easier. Today, communication has become more advanced with the advent of gadgets. Among them, 4,444 are smartphones such as iPhones, Androids and laptops. In preschool psychology, development refers to children from 0 to 6 years old. The research method used is literary research. Results show that amenities impact  social development in young children. Excessive use of gadgets harms children's social and emotional development. Harmful effects of electronic device use on children include isolation, sleep disturbances, loneliness, violent behavior, reduced creativity and threats of cyberbullying. Solution to device use in  childhood by limiting device use, supervising children's screen time with parents who play a crucial role, and providing a schedule timely  when children play with devices, so that devices do not hinder young children's social development.