A food and beverage booth owner who sells alongside the road, has difficulty when opening and closing the booth also when the rain comes suddenly - suddenly the owner has difficulty protecting electronic equipment from rainwater which can cause a short circuit, because the process is still done manually. To overcome this problem, a system with a microcontroller circuit using Arduino Uno and a DC motor can be made that can open and close the booth with a push button command that can facilitate the process which is still done manually and with a rain sensor circuit that can detect rain as an order to close the front of the booth to protect electronic equipment from rainwater. This system is implemented in an intelligent booth prototype to test whether the algorithm made can overcome the problems experienced by the booth owner.

Community Service Activities aims to provide assistance by utilizing IT in the realization of Cc5 + values for students of SMP St. Yoseph Lahat. The specific target expected from this activity is the increased ability of junior high school students. Yoseph Lahat in designing and creating interactive IT-based presentation materials to prepare the competition OSTARNAS III. The software used is MS Power Point. Methods of implementation undertaken starting from the determination of partners, justification partner issues, procedures undertaken, work plans, and the expec ted output in the mentoring activities. Outcome of the implementation of this activity is expected: 1)students make presentations about interactive Cc5 + values using IT-based technology, 2) students understand the use of technology in making presentation materials about Cc5 + values as a support for the preparation process of the OSTARNAS III contest, and 3) the students mastered the presentation material on Cc5 + values with the best preparation for the competition OSTARNAS III. The results of the questionnaire stated that the OSTARNAS III advisory activities agreed / benefited by 46.67% and strongly agreed / beneficial to Junior High School students. Yosef Lahat equal to 53.33%

Kecerobohan manusia bisa menjadi salah satu faktor utama terjadinya kecelakaan. Dari situasi inilah perusahaan asuransi mengambil peran sekaligus peluang terhadap konsumen, dimana akan menanggung kerugian yang disebut sebagai resiko. Permasalahan yang sering timbul dalam perusahaan asuransi adalah banyaknya nasabah yang menunggak dalam membayar premi. Pada prosedur yang berlaku di asuransi, terdapat masa tenggang pembayaran yaitu 30 hari dimana dalam masa tersebut nasabah / tertanggung harus membayarkan sejumlah premi yang sudah ditentukan dan apabila nasabah / tertanggung tidak membayar premi, maka polis asuransi akan dibatalkan sehingga keuntungan asuransi akan berkurang dan jika hal ini terjadi akan merugikan pihak asuransi. Penelitian ini dilakukan dengan menerapkan algoritma Naive Bayes menggunakan data nasabah asuransi. Hasil dari penelitian ini berupa sistem klasifikasi keterlambatan pembayaran premi asuransi yang dapat mengklasifikasi status pembayaran premi nasabah asuransi. Hasil pengujian sistem menunjukkan bahwa sistem dapat mengklasifikasikan status pembayaran premi nasabah asuransi dengan tingkat akurasi sebesar 82,5%, lalu untuk tingkat presisi yang dihasilkan adalah 94,83% dan recall yang dihasilkan adalah 86,39%.

Schools are generally used as places for formal community education, schools continue to evolve in terms of infrastructure development, human resources, especially teachers, and a curriculum system to keep up with the evolving times. Vocational High School prepares students who are ready to work, especially industries that need human resources who already have the required hard skills.Especially for the TKJ (computer network) concentration, students are given a workshop from the continuation of the socialization that had been previously held. The workshops are conducted online using video conferencing with the google meet application, applications such as power points and other application simulators are displayed by sharing the desktop view with workshop participants (students of SMK Xaverius 1 Palembang)Indicators for the assessment of workshop activities using a questionnaire and the results of several question points responded to by 22 students of SMK Xaverius Palembang. The highest percentage of questions "is the topic of activity interesting?" is at the 4th rate with a performance of 22.7%, the question "Material / material activity fading?" found at rate 5 with an achievement of 54.5%, the question "The delivery of the material / material is clear?" found at the 4th rate with a gain of 50%, the question "Is this activity generally interesting?" is at the 4th rate with a achievement of 54.5% and the question "Is this activity very useful?" there is the 5th rate with an achievement of 59.1%, with these results many of them have a positive attitude in this PkM activity.

The problem that often arises in insurance companies is the number of customers who do not smoothly pay premiums. The procedure that applies to the insurance during the grace period is 30 days. The insured customer must follow the premium payment procedure, if the customer does not pay the premium, the insurance policy will be canceled, this is part of the company's loss. An insurance company has a lot of data and this data can be processed to produce information on how to find out potential customer delays from a pattern formed using the C4.5 method. This research was conducted by applying the C4.5 algorithm using insurance customer data. The results of this study are a classification system for late payment of insurance premiums that can classify insurance customer premium payment status as a consideration for accepting insurance customers. The system test results show that the system can classify the status of insurance customer premium payments with a classification accuracy of 88%. Keywords: Algorithm C 4.5, Insurance, Classification, Premium