Computer Science (CO-SCIENCE) <p>Computer Science (CO-SCIENCE) pertama kali publikasi tahun 2021 dengan nomor ISSN (Elektonik): <a title="e-issn" href=";1611622977&amp;1&amp;&amp;" target="_blank" rel="noopener">2774-9711</a> yang diterbitkan oleh Lembaga Ilmu Pengetahuan Indonesia (LIPI).</p> <p>Computer Science (CO-SCIENCE) adalah jurnal yang diterbitkan oleh Program Studi Ilmu Komputer Universitas Bina Sarana Informatika. Computer Science (CO-SCIENCE) terbit 2 kali setahun (Januari dan Juli) dalam bentuk elektronik.</p> <p>Redaksi menerima naskah berupa artikel ilmiah dan penelitian pada bidang: Networking, Aplication Mobile, Software Engineering, Web Programming, Mobile Computing, Cloud Computing, Data Mining, dan Aplikasi Sains.</p> LPPM Universitas Bina Sarana Informatika en-US Computer Science (CO-SCIENCE) 2774-9711 Penerapan Firewall Dan Protokol IpSec/L2TP Sebagai Solusi Keamanan Akses Jaringan Publik <p><em>Firewall is an algorithm that allows filtering activities to determine access restrictions on a komputer that can use Publik network access and which komputer s cannot pass through Publik network access, this is commonly called filtering. As time goes by, the development of today's technology is increasing rapidly. that the sophistication of technology is a major influence in facilitating human life. Based on this, the authors create a Firewall and IpSec/L2TP Protocol as a Security Solution for PT.Neu Indonesia, which aims to prevent attacks on the types of malware found on a site circulating on Publik networks by filtering it with the use of the firewall itself so that the risk of crime in the cyber world can minimize the occurrence of illegal access that can enter the PT.Neu Indonesia network.</em></p> Muhammad Ayub Andry maulana Ahmad Fauzi Copyright (c) 2021 Computer Science (CO-SCIENCE) 2021-07-26 2021-07-26 1 2 81 90 Implementasi Load Balancing Dengan Metode Peer Connection Classifier Pada Cabang PT. Astra Credit Companies <p><em>The need for an internet network today is very important along with the development and progress of increasingly sophisticated data communications. With uses such as searching for information, the need to upload and download documents from the internet, and participate in video conferences. This causes internet connection traffic to increase, and this will be very disturbing for those who have a small bandwidth network and can cause the internet connection to be disconnected. One way to maintain the quality or quality of internet connectivity is to maintain a balance of traffic and bandwidth savings by dividing the load evenly into several links or paths using the Per Connection Classifier (PCC) method through load balancing techniques. Based on the research that has been done, the traffic load obtained becomes smoother without any accumulation of data.</em></p> Rizky Apriansyah Hadi Desmulyati Copyright (c) 2021 Rizky Apriansyah Hadi, Desmulyati 2021-07-26 2021-07-26 1 2 91 96 Rancang Bangun Aplikasi Berbasis Android Untuk Pembelajaran Linux Centos <p><em>Centos is a Linux based framework commonly used by network supervisors. Given the educational plan of learning in the current PC innovation study program, students are familiar with this framework. In today's all-mechanical era, there are lots of learning media such as android applications. This application was created to offer a different convenience to the Java programming language. In addition, this application is also developed using the SDLC model. There are still some uses that can help with learning exercises, especially those related to the Centos linux framework, the basic explanation of application makers to create applications that can later help learn about Centos linux. Although not as popular as Windows and iOS frameworks, there are still many who use the Centos Linux framework, especially for framework needs with this application making it easier for users to learn because it is mobile based so that we can learn Centos anywhere and anytime.</em></p> Rusady Sari Dewi Rian Septian Anwar Copyright (c) 2021 Rusady, Sari Dewi, Rian Septian Anwar 2021-07-26 2021-07-26 1 2 97 104 Rancang Bangun Sistem Informasi Rent Car Dengan Pengunaan Aplikasi Online <p>PT. Rent Car is one of the companies engaged in the rental car (rent a car). In the process of recording data, officials are still doing by entering the data into the general ledger, so it is considered less effective also make it difficult for the officer to make a report. When a customer wants to rent a car they want, they often feel disappointed because the car is limited and does not know the information about the car that wants to hire. The method used in this research includes methods of data collection and system development methods. Therefore, PT. Rent Car need a rental application system that can integrate the conventional rental system toward online rental system. And specification of software used to design a web-based information system that is using the programming language PHP scripts and to use MySQL database.</p> Ari Abdilah Badariatul Lailiah Rabiatus Sa’adah Copyright (c) 2021 Ari Abdilah, Badariatul Lailiah, Rabiatus Sa’adah 2021-07-26 2021-07-26 1 2 105 112 Animasi Interaktif Klasifikasi Jangkauan Dan Topologi Jaringan Komputer Berbasis Android Sebagai Media Belajar <p><em>Classification of range and topology has its own types and characteristics. There are many types of outreach classifications and topologies, as well as process methods in learning in schools that are less interactive so that students are bored in the learning process, especially for students of SMK Computer and Network Engineering Department. In practice, making LAN cables requires equipment that is quite expensive, making it difficult to carry out these practical activities outside of school. So that students find it difficult to develop their abilities, especially in the vocational field. With current technological developments, of course, it can be used in the world of education, one of the uses is by making educational applications that can provide a new atmosphere in learning. Interactive animation can be a solution in overcoming the practice of making LAN cables and an explanation of Network Topology. This interactive animation was made using Construct 2 software, developed using multimedia development methods and data collection techniques in the form of observations, interviews and literature studies. The purpose of making interactive applications is so that students can understand the range classification and topology well, and can practice installing LAN cables through interactive animation simulation software as a substitute for school facilities.</em></p> Rezki Muhammad Muhammad Ifan Rifani Ihsan Diah Ayu Ambarsari Copyright (c) 2021 Rezki Muhammad, Muhammad Ifan Rifani Ihsan, Diah Ayu Ambarsari 2021-07-26 2021-07-26 1 2 113 122 Perancangan Sistem Informasi Point Of Sales Berbasis Web Pada Perusahaan Sablon <p><em>The sales system that runs on CV. Wadas Warna Warni (Dyotees) is currently still done conventionally, according to the author's observation, it is very ineffective, where Customer Service has to make a conventional order form using Microsoft Excel which contains details of sales and sales calculations, then prints the order form and also disposes the order form. to the production, invoice creation and calculation which is still done conventionally using Microsoft Excel. This causes frequent input errors, data redundancies and also takes a long time to position orders to the production department, it is difficult to monitor sales that are being processed or have finished processing production and requires a long time in the process of calculating the income statement for the accounting department where the division is accounting must recap all invoice data. By designing the Point of sales (POS) Information system, it is hoped that it can simplify the sales process in which the creation and calculation of order forms automatically, report generation and also management of more organized sales data.</em></p> Fitra Adhitya Sandi Laila Septiana Copyright (c) 2021 Fitra Adhitya Sandi, Laila Septiana 2021-07-26 2021-07-26 1 2 123 130 Rancang Bangun Aplikasi Pembelajaran Bahasa Arab Untuk Siswa Madrasah Ibtidaiyah Berbasis Android <p><em>With the increasingly open mindset of society today, especially Indonesia, it makes it easy for us to accept new things and implement them in our lives, these new things appear in many aspects such as one of which is education. In terms of education, it is better if it is carried out at an early age, especially in terms of learning a second foreign language or a foreign language substituting for English, this is what elementary school teachers have realized and has begun to be implemented recently, to do this elementary schools need tools to create methods. this learning becomes effective. Therefore the authors make an Arabic learning application that will make it easier for elementary school teachers to effectively introduce basic Arabic such as the recognition of the names of the day for elementary school children, which is equipped with sounds and images that can attract children's interests. This application can be run on an Android smartphone with a minimum Android OS 5.0 (Lollipop) and a maximum Android OS is 8.1 (Oreo).</em></p> Waeisul Bismi Musriatun Napiah Jordy Lasmana Putra Fajar Shidiq Copyright (c) 2021 Waeisul Bismi, Musriatun Napiah, Jordy Lasmana Putra, Fajar Shidiq 2021-07-26 2021-07-26 1 2 131 138 Prediksi Klasemen Akhir English Premier League Untuk Keputusan Penanaman Modal Dengan Metode Distribusi Poisson <p><em>Nowadays, people often talk about machine learning, it is a technique which gives a system a skill to learn and develop automatically based on the experience in the past. With machine learning, it hopes could help the decission making process to decide the result of English Premiere Leauge' final standigs. In this research, the researcher will develop a machine learning using Poisson Distribution Method, which is a distribution of random variables (x) which refer to the number of experimental results that occur in a certain time interval or in a certain area. By predicting the final results of the standings, the researcher hopes that the result could show which club who has promising prospect that could be a reference for capital investment.</em></p> Muhammad Fauzan Azhar Nurmalasari Ani Yoraeni Copyright (c) 2021 Muhammad Fauzan Azhar, Nurmalasari, Ani Yoraeni 2021-07-26 2021-07-26 1 2 139 148 Rancang Bangun Animasi Interaktif Berbasis Multimedia Pada Pengenalan Dasar Bahasa Jepang <p><em>The use of language as a medium of communication is currently important. Language is a way to communicate and interact with other people. Selain bahasa inggris yang menjadi bahasa internasional, terdapat beberapa bahasa negara lain yang juga tidak kalah diminati untuk dipelajari, salah satunya adalah bahasa jepang. Japanese language has a unique writing and pronunciation structure, so it takes persistence in learning it. However, the use of letters, sentence structure, and grammar structures that are different from Indonesian grammar makes it difficult for beginners to learn Japanese. The author tries to create an application that connects the multimedia functions on the computer with the knowledge of basic Japanese language introduction. In this study, using the waterfall software development method in making animation of basic Japanese language introduction. The result of this research is an animation that discusses the introduction of the country of Japan, the letters used in Japanese, greetings that are often used in everyday life, and how to introduce oneself in Japanese which is presented in the form of interactive animation so that it can help users. to understand basic Japanese.</em></p> Safitri Linawati Siti Nurajizah Copyright (c) 2021 Safitri Linawati, Siti Nurajizah 2021-07-26 2021-07-26 1 2 149 154 Memprediksi Pola Ban Hero Pada Game Mobile Legends Menggunakan Algoritma Apriori <p><em>In this digital era, the development of video games is so rapid, from console-based to smartphone devices. One of the trending video game genres is the Multiplayer Online Battle Arena (MOBA) with one of the most popular MOBA games, the Mobile Legends game. In winning a match in a Mobile Legends game, a good game strategy is needed from each team to defend the base and destroy the opponent's base, one of which is by Ban Hero or banning some existing heroes so that they cannot be used both for the opposing team and for the opposing team. own team. Therefore, this study was conducted to predict the pattern of hero tires using the Apriori algorithm which was carried out on 9 attributes of Hero Mobile Legends. From the results it is known that CHOU Hero is more widely used and not banned compared to 8 other Heroes</em></p> Jordy Lasmana Putra Syarah Seimahuira Copyright (c) 2021 Jordy Lasmana Putra, Syarah Seimahuira 2021-07-26 2021-07-26 1 2 155 160 Perancangan Aplikasi Penjualan Furniture Dengan Metode Waterfall Berbasis Web <p><em>Nowadays, technological advances are growing so rapidly, so that difficult jobs can be completed so easily. Many of the furniture shop owners want their shop to be widely known by the public, but the sales system used is still in manual form. By taking advantage of technological developments, furniture shop owners need a computerized system. Therefore, a web-based furniture sales application is needed. Making this program with the waterfall method. Making this application also uses the Codeigniter framework with the PHP programming language and MySQL database, which makes it easier for customers and shop owners to manage data, store information, process transactions and market furniture digitally.</em></p> hendri hendri Jefi Jefi Desiana Nur Kholifah Kusmayanti Solecha Rio Nugraha Armanda Copyright (c) 2021 hendri hendri, Jefi Jefi, Desiana Nur Kholifah, Kusmayanti Solecha, Rio Nugraha Armanda 2021-07-26 2021-07-26 1 2 161 170 Implementasi Metode Profile Matching dan Multi Factor Evaluation Process (MFEP) Dalam Seleksi Pencari Kerja <p><em>An effective job seekers selection process at the company is needed to assist an organization's decision making. The purpose of this paper is to create a system and development of a decision-making system in the human resources (HR) section to find it easier to determine whether job seekers are accepted or not. The multi factor evaluation process (MFEP) is a very effective approach in dealing with decision problems and Profile matching is a multi-criteria selection method, where the determination of aspects and criteria (name of school, appropriate department, GPA value meets, year of graduation, relevant courses, work experience in the appropriate field, projects that have been handled, salary suitability, domicile, honest, responsible and discipline, cooperation, communicative and self-confidence). The advantage of the profile matching method is the provision of standard values from the main and supporting criteria, making it easier for system users to determine the available options. MPEF needs to define the education value factor, target value and attitude value. The final calculation results provide information referring to the same name. Profile Matching method in the first order with a value of 4.62, the second order of 4.59 and the third order of 4.52. The first order MFEP method = 0.513, the second order = 0.510 and the third order = 0.502. This decision support system not only makes it easier to determine the assessment of job seekers but also provides an alternative sequence of candidates who have the potential to be considered by companies or organizations</em></p> Heru Purwanto Arfhan Prasetyo Rachmat Suryadithya Copyright (c) 2021 Heru Purwanto , Arfhan Prasetyo, Rachmat Suryadithya 2021-07-26 2021-07-26 1 2 171 178