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The goal to be achieved from this service is the application of the digital economy through e-commerce and fintech for MSME actors in Kota Pari Village. Then it is hoped that the community/MSME actors will be able to understand that this digital economic transformation is used for the turnover of economic activities so that it will increase the income of business actors in the Pandemic Era so that the products offered are not only marketed in the local area but also internationally. Business actors are increasingly aware of this digital economic transformation, so it is hoped that they will be able to increase their income through product sales by increasing production, expanding sales areas in e-commerce that are already available on the android application. This service activity plan will be carried out for 1 day with counseling with the theme of Education on Digital Economy Transformation Through E-commerce and Fintech in increasing the income of business actors in the COVID-19 Pandemic Era in Kota Pari Village, Pantai Cermin District, Serdang Bedagai Regency and evaluating the results by re-observing the community/MSME actors by looking at the income results and the level of purchasing power of the community.

Interest and aptitude tests help in recognizing children's potential early on, so that parents and educators can plan education that is more suitable and supports the optimal development of children's potential. The purpose of this study is to help individuals know that interest and aptitude test instrumentation has a major impact in directing individuals in developing themselves, both in academics and careers. Children who study and work according to their interests tend to be more motivated, happy and accomplished. With a clear understanding of interests and aptitudes, children can make better decisions regarding future education, major and career choices. In this study we used the Literature Review method by collecting several sources. The results and discussion of the literature review discussion regarding interest tests, interest inventories, and Android-based psychological test applications in guidance and counseling in schools show that these tools are very important to help students determine educational and career paths according to their interests and talents. Interest tests help reduce uncertainty in career decision-making, improve the fit between individuals and jobs or study programs, and expand understanding of the psychological tendencies underlying their choices.

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.    

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.    

Furniture has high added value and significant global competitiveness, largely due to the diversity of natural raw materials available in Indonesia, such as wood, rattan, and bamboo, as well as distinctive and high-quality designs. This advantage is supported by the skills and competence of the available human resources, making Indonesian furniture superior to products from other countries. Product quality is a key element in winning market competition, as it impacts customer satisfaction and loyalty. Masnur Joglo, a furniture company located on Jl. Muara Karya, specializes in producing various types of furniture from high-quality woods such as super mahogany and red teak. However, the purchasing system, which requires customers to visit the store directly and manually record prices, results in inefficiencies in terms of time and transportation costs. Customers often need to visit multiple stores to find the desired product, which is an inefficient process. To address these challenges, this study proposes the development of an Android-based sales application as a solution. This application is designed to expand Masnur Joglo's market reach and facilitate online ordering of furniture products, anytime and anywhere. The study aims to design and develop an Android-based sales information system that can enhance operational efficiency and streamline the sales process while better meeting customer needs. The application development method employs the waterfall model and uses MySQL and Firebase databases.  

This study aims to decipher the results of validation tests and find out the user's response to the development of Android-based learning media using the Smart Apps Creator (SAC) application. This study uses mixed methods (quantitative and qualitative). Data collection uses questionnaires and documents. Quantitative analysis techniques were carried out on validation results using numbers, scales, or percentages, while qualitative analysis was carried out on the results of (1) individual trials, (2) small groups and (3) large groups.  The population of this study is 30 grade VII students, while the sample is determined using non-probability sampling which aims to make all populations as samples. The results of the study show that: (1) the results of the validation of media experts obtained a percentage of 95% (very feasible) and material experts 94% (very feasible).  (2) the results of user trials on the development of Android-based Arabic learning media products received an average score for individual trials of 80% with categories (good), small group trials of 85% with categories (very good) and large group trials of 95% with categories (very good).

Android is an operating system whose capabilities continue to increase from year to year. The capabilities of Android currently match the capabilities of a computer. Not only limited to ordinary computers, what a server computer can do can now be done on Android, including making Android a web server. So it is possible for people who have Android to have their own web server. The problem that arises is that the web server on Android cannot be accessed directly via the internet. Cellular operators do not provide Public IP to their customers, so a way is needed so that the Android web server can be accessed on the internet, one of which is by using Virtual Private Network (VPN) technology. The aim of this research is to make the web server on Android accessible on the internet. The method used is to combine a Virtual Private Server (VPS) and Android using VPN. The research results showed that VPN can be a bridge so that the web server on Android can be accessed from the internet.  

This research aims to analyze the performance of various CPU scheduling algorithms in increasing the responsiveness of the Android operating system. Using algorithms such as First Come First Served (FCFS), Shortest Job First (SJF), Shortest Remaining Time First (SRTF), and Round Robin, this study evaluates the advantages and disadvantages of each in terms of average waiting time, throughput, and power consumption. Research methods include literature study, algorithm selection and implementation, as well as data testing and analysis. The research results show that choosing the right scheduling algorithm can increase system efficiency and responsiveness, as well as provide recommendations for Android operating system developers and the application developer community. It is hoped that these findings will help in determining the optimal solution for improving the performance of the Android operating system.

The Mburukulu Elementary School in Mburukulu Village, Pahunga Lodu District, East Sumba Regency, is facing challenges in teaching Citizenship Education (PKN) in class V. The lack of interaction between teachers and students and the lack of student involvement has resulted in boredom, lack of focus, and lack of enthusiasm in Study. This research aims to create and implement an interactive educational game entitled "Student Explore" which was specifically developed for the Android platform. This game was designed using the Game Development Life Cycle (GDLC) methodology to ensure its quality and effectiveness in increasing student interaction and involvement in PKN learning in class V of SD Masehi Mburukulu. "Student Explore" is designed to provide an engaging and interactive learning experience for students. Through the educational games presented in the application, it is hoped that students can better understand the concepts taught in Citizenship Education. In its development, the GDLC method was used to ensure the game met expected quality standards and maximized its potential in enhancing learning. The benefits of this research include increasing students' interest in learning, better understanding of concepts, and support for teachers in the learning process. The result of this research is the implementation of educational games to improve students' learning understanding at SD Masehi Mburukulu. Thus, it is hoped that this game can be an effective solution to overcome challenges in PKN learning at the school.

The business of selling coffee in the world is growing more easily and quickly with the provision of a place which is usually called a cafe or shop. One of them is the Titik Hitam Nalar cafe in Jakarta, but the ordering process with customers takes longer to wait for orders and customer payments that are not neatly arranged create conditions that’s are not conducive, resulting in continuous negative criticism. Therefore, an application is needed that helps employees work in every part, both in terms of ordering, manufacturing, and payments, using the FIFO algorithm which focuses on which services are prioritized first in order to reduce negative sentiment from customers. The Android-based application was created by involving every design phase, making it easier for customers and employees to provide a service facility that works well and is suitable for use.  

Hipertensi merupakan salah satu penyakit tidak menular yang umum terjadi di dunia. Salah satu penyebab umum hipertensi adalah pola makan yang tidak sehat. Dalam menanggapi hal tersebut, Dietary Approach to Stop Hypertension (DASH) disarankan sebagai pola makan yang efektif untuk mengurangi tekanan darah. Meskipun telah terbukti efektif, penderita hipertensi masih belum dapat menerapkan pola makan tersebut secara konsisten. Salah satu faktor penghambat penerapan pola makan DASH adalah ketidaktahuan penderita hipertensi dalam memodifikasi pola makan sesuai anjuran yang ada. Berdasarkan permasalahan tersebut, penelitian ini bertujuan untuk merancang pembuatan aplikasi pola makan DASH bagi penderita hipertensi berbasis mobile yang dapat memberikan rencana makan sesuai pola makan DASH. Rencana makan dalam jangka waktu tujuh hari yang dibuat setiap harinya meliputi sarapan, makan siang, dan makan malam. Menu makanan akan dirancang dan disesuaikan dengan jumlah kebutuhan kalori harian. Penderita juga dapat memantau asupan natrium sesuai dengan makanan yang telah dikonsumsi. Sebelum mengembangkan aplikasi, usability testing dilakukan menggunakan metode heuristic evaluation untuk mengevaluasi desain pada prototype. Pengembangan aplikasi dilakukan menggunakan metode waterfall model dengan arsitektur BLoC. Aplikasi mobile dikembangkan menggunakan bahasa pemrograman Dart, framework Flutter, Bloc, Firebase, dan Edamam untuk sistem operasi Android. Pengujian black box kemudian dilakukan dengan metode functional testing. Setiap fitur yang diujikan berhasil berjalan sesuai yang diharapkan dan dinyatakan lolos pengujian. Hasil penelitian menunjukkan bahwa aplikasi Milda dapat digunakan oleh penderita hipertensi untuk menjalankan pola makan sehat dengan memberikan rencana makan sesuai dengan pola makan DASH. Rencana makan yang diberikan mendorong penderita hipertensi untuk memulai atau mencoba kembali pola makan DASH. Selain itu, variasi menu makanan yang menarik juga mendorong penderita hipertensi untuk lebih konsisten dalam menjalankan pola makan DASH.

Technological progress is currently felt to be increasingly rapid, we can feel that progress in the field of technology is greatly influencing our daily lives. The digital economy is a form of technological development that is currently being enjoyed by various groups, including children, teenagers and adults. This digital economy is an economic activity carried out with the help of digital technology. One form of digital economic technology is the internet, Android-based cellphones/applications. Since Covid-19 happened, it has forced everyone to use gadgets to carry out all their activities, especially children from elementary school to university level, as well as TPQ children at the Nurul Ihsan Mosque when carrying out learning activities, they have to use gadgets to be able to carry out activities. from their respective homes with the aim of not gathering in one place (mosque). The use of digital economic technology is able to influence them, such as in the games and applications available. Basically, the use of this technology still has to be supervised by parents, but not all parents can monitor their children's use of this item so that even in our daily lives, the use of digital economic technology can influence the attitudes and ethics of children and teenagers.

The background of this research is the lack of interest of Dhyana Pura University Informatics Engineering Study Program students in visiting the library. This shows the need for a new innovation in the library that can increase the attractiveness of students to visit the library more often. The purpose of this study was to implement augmented reality with the Android-based marker-based tracking method in the search system for reference books for IT courses in the UNDHIRA library, to find out the results of the analysis of the level of user convenience and satisfaction in using the application, as well as to find out the results of a comparison of the level of interest in student visits to the library before and after system implementation. This research is a quantitative study; the data was collected using a questionnaire technique on 54 application users. The results showed that the usability of the application was 87.41% or could be classified as "very good." The results of the Kano model test show that the attributes of the application are very satisfying to users, with the majority of the attributes in the application being included in the attractive category. The results of a comparative analysis of the interest level of student visits to the library before and after system implementation showed that 49 out of 54 students stated that the application could increase their interest in visiting the library. So based on these results, this application can increase the interest of IT students in visiting the library.

providers bouquet products for the community, which is located at Jalan GG. RT.015 Mosque RW.005 Talang Ubi Timur Village, Talang Ubi District, Penukal Regency Abab Lematang Ilir. South Sumatra Province. The lack of information conveyed to the public, resulting in a lack of knowledge the community regarding the sales of the ce florist shop in PALI district due to the sales information system that was carried out at the ce florist bouquet shop is still manual, namely people who want to know about the latest information about bouquet items must come directly so that it is more effective and efficient, because it takes a lot of time to arrive at the ce florist's bouquet shop. So from the researcher will make an android information system for the ce florist bouquet shop which will be accessed through the application that we install using Flutter programming language. This study uses the method (SDLC) Waterfall as a development method to be used when designing and build applications, while the research methods to be used is a descriptive method through a qualitative approach. Research collecting data through direct observation, interviews and library research. help tool uml design to help design the system to be created. With the existence of this android application hopefully helps people save time when want to shop at the ce florist bouquet shop.

This research aims to determine how to produce an Android-based character calculator application on the ability to understand concepts in arithmetic sequences and series material for high school students that reaches the level of validity, practicality and. The method used in this research is the Research & Development method with the Borg and Gall model research design which consists of 7 stages, namely potential and problems, data collection, product design, design validation, design revision, product testing, and product revision. The subjects in this research were 31 students in class XI Science at SMA Negeri 9 Pontianak. This research uses indirect communication techniques and measurements with data collection tools in the form of validation sheets, questionnaires and test questions. The first research result, namely the validity, obtained from the material and media expert validation value of 89.77% with very valid criteria, the second, namely the practicality obtained from teacher and student questionnaires with a percentage of 96.64% with very valid criteria, while the practicality value was obtained from The posttest score is 83.87% of the KKM score of 76 so it is included in the very effective category. Thus, it can be concluded that the Android-based character calculator application media for the ability to understand concepts in arithmetic sequences and series material for high school students is classified as effective to use.  

This study describes the results of innovations from the Android-based Hospital Santri Application (Hospital Queue SMS) at the Outpatient Installation of the Specialist Polyclinic and the Executive Polyclinic of Sidoarjo Hospital, which is an innovation that is very helpful in managing patient queues. Initially, Sidoarjo Hospital used the SMS Queue program to manage patient queues online. However, since September 2019, this program has changed to the Santri RS (Hospital Queue SMS) application which can be downloaded through the Google Play Store. This application aims to facilitate patient needs related to outpatient queues at Sidoarjo Hospital. Patients can register through the Santri RS application or manually with the same queue number. The Santri RS application is supported by a legal umbrella and SOP (Standard Operating Procedure). This ensures that the implementation of innovation runs well. This research highlights the factors that affect the innovation process, including innovation governance, sources of ideas, innovation culture, capabilities and tools, goals, outcomes, and barriers.

Pendidikan TK memiliki peran yang sangat penting untuk mengembangkan kepribadian anak serta mempersiapkan mereka untuk memasuki jenjang pendidikan selanjutnya.Dengan kata lain, pendidikan anak usia dini khususnya TK sangat mengutamakan pendidikan yang berpusat pada anak. Dalam undang undang sistem Pendidikan Nasional (2003). Tugas utama TK adalah mempersiapkan anak dengan memperkenalkan berbagai pengetahuan,sikap/perilaku,keterampilan dan intelektual agar dapat melakukan adaptasi  dengan kegiatan  belajar dengan sesungguhnya di sekolah dasar. Tujuan dari kegiatan ini yaitu, Untuk mempermudah kemampuan menghafal abjad dengan tampilan yang menarik minat anak anak untuk belajar dalam pengembangan perangkat pembelajaran berbasis android yaitu aplikasi menghafal huruf abjad. Kegiatan ini dilakukan dengan beberapa tahapan yaitu, Memperkenalkan dan menampilkan Aplikasi “Mengenal Huruf Abjad”, menjelaskan keguanaan aplikasi ini dan mempraktekan cara penggunaan aplikasi ini. Dengan adanya kegiatan pelatihan dan pendampingan kepada guru dan orang tua dan  anak – anak dari  TK Cinta Bangsa dapat memberikan semangat dan mempermudah belajar menghafal huruf dengan tampilan yang menarik minat untuk belajar membaca.

This research focuses on the design and implementation of the Caesar Cipher method to improve the security of an Android-based School Academic Information System. In this digital era, data security is a major concern, especially in school academic information systems that manage important data. The Caesar Cipher method, as a simple and easy to implement encryption technique, is used in this research. The research results show that the implementation of Caesar Cipher has succeeded in increasing data security in the system. While this method does not provide a very high level of security, it can be part of a more complex security approach. Overall, this research shows that the design and implementation of Caesar Cipher is an effective step in improving the security of Android-based school academic information systems.