Crude Palm Oil (CPO) is crude palm oil. This product is obtained from the extraction or compression process of the fruit flesh (mesocarp) of oil palm generally from the Elaeis guineensis species and has not been purified. The production of palm oil (CPO) at the right time and in the right amount is something that palm oil mill companies want. However, in determining the amount of CPO production in the future, it is not easy, especially when it is still using manual calculations so that it will experience difficulties in managing production figures. This study aims to help the factory determine the right number of numbers in producing CPO. The data processed were 12 data which were analyzed using the Mamdani Fuzzy logic method. This method will process input data in the form of order and stock data. Fuzzy logic is an effective solution to predict the instability of CPO production. The application of this fuzzy logic can reduce losses due to variance trends in the production and sales of CPO PT. Sawita. From the results of testing the 2021 data for 12 data, the percentage of similarity between manual data and system testing is 90% so that the results are acceptable.

Case Based Reasoning (CBR) is a method that aims to resolve a new case by adapting the solutions contained in previous cases that are similar to the new case. The system built in this study is the CBR system to make recommendations on the topic of student thesis concentration.               This study used data from undergraduate students of Informatics Engineering IST AKPRIND Yogyakarta with a total of 115 data consisting of 80 training data and 35 test data. This study aims to design and build a Case Based Reasoning system using the Nearest Neighbor and Manhattan Distance Similarity Methods, and to compare the results of the accuracy value using the Nearest Neighbor Similarity and Manhattan Distance Similarity methods.               The recommendation process is carried out by calculating the value of closeness or similarity between new cases and old cases stored on a case basis using the Nearest Neighbor Method and Manhattan Distance.  The features used in this study consisted of GPA and course grades. The case taken is the case with the highest similarity value. If a case doesnt get a topic recommendation or is less than the trashold value of 0.8, a case revision will be carried out by an expert. Successfully revised cases are stored in the system to be made new knowledge. The test results using the Nearest Neighbor Method get an accuracy value of 97.14% and Manhattan Distance Method 94.29%.

Purwokerto as the city center in southwestern Central Java which is one of the tourism places in Central Java with a fairly large number of enthusiasts. Purwokerto City has a wide selection of tourist attraction destinations that can be visited by tourists. There are not a few tourists who come from outside the city and do tours for more than one day. If you look at these conditions, a temporary stopover place is needed, namely a hotel. Purwokerto City provides so many choices of hotels spread across various locations with lodging classes, rental prices, facilities and services that are diverse. With the existence of many and different hotel facilities, of course, visitors will find it difficult to find and determine a hotel that matches the desired criteria. In addition, they will also find it difficult in finding the location of the desired hotel.  The calculation results using the SAW (Simple Additive Weighting) Method found that Java Heritage Hotel got a value of 0.9, Resort and Hotel Atrium by 0.77, Surya Yudha Hotel by 0.65 and Trisno Hotel by 0.55. And get the same result between manual calculations and calculations from the system.. Based on the description above, in this study a decision support system was developed that can help tourists to determine hotels according to the wishes and needs of tourists using the SAW Method (Simple Additive Weighting)

Cooking is the process of processing food ingredients and seasonings to be used as a variety of dishes. Cooking can be done by anyone. When cooking, recipes are needed as a reference to process food ingredients into a dish. A recipe in the modern sense is defined as a set of instructions that tell how to prepare and cook food, including a list of what foods are needed . Yogyakarta has a variety of culinary delights. With the passage of time, Yogyakarta's specialties are displaced by foreign food entering Yogyakarta. The Recipe application contains a variety of recipes for typical Yogyakarta food. This research aims to help the community in making Indonesian culinary food, especially the Yogyakarta food menu. The application is created web-based using PHP programming language and mysql database. For the software development method, which is carried out is using the Software Development Life Cycle (SDLC) Waterfall method. The first stage carried out is planning, design stages, implementation and trials. Based on the test results using a black box, the system created has functional features according to what is expected. The system features login, Manage recipe data, Manage category data and Manage comment data.

Dalam sektor Pendidikan, perangkat komputer memegang peranan sangat penting. Hal ini dapat dirasakan hampir semua aktivitas di dunia Pendidikan yang telah menggunakan komputer. Pemanfaatan komputer sebagai media pembelajarannyamasih dirasa sangat minim dan terbatas. Guru SD Negeri 3 Kebondalem Banjarnegara saat ini dituntut bersifat dinamis terhadap perkembangan teknologi yang sangat berkembang pesat sehingga, agar peserta didiknya mampu berkompeten menggunakan aplikasi yang sudah tersedia yaitu Microsoft Power Point. Pelatihan ini ditujukan kepada para guru agar dapat meningkatkan wawasan ilmu pengetahuan sebagai media pembelajaran menggunakan Microsoft Power Point. Dalam pelatihan mengenalkan dan mempraktekan fasilitas yang ada pada PPT seperti penggunan ribbon/menu bar, pemilihan tema, menyisipkan gambar dan video, menambahkan transisi dan efek animasi serta membuat hyperlink.