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Since the announcement of the policy plan for a name transfer system in the sale of used mobile phones, the issue has attracted widespread public attention and discussion. People have expressed their opinions on social media platforms, particularly TikTok. This study aims to classify the sentiment of TikTok users using Naive Bayes and Support Vector Machine (SVM) algorithms. The data were collected through a comment scraping technique on related content.The research stages include text preprocessing, sentiment labeling into positive, negative, and neutral categories, and feature extraction using TF-IDF. The classification process employs Naive Bayes and Support Vector Machine algorithms, which are then evaluated based on accuracy, precision, recall, and F1-score. The results of this study indicate that both methods are capable of classifying sentiment effectively. However, the Support Vector Machine method is superior to the Naive Bayes method with an accuracy rate of 99.57% compared to 94.30%. This study is expected to help the government understand public responses to the planned policy of the used mobile phone name transfer system.

The rapid development of smartphone technology today creates challenges for consumers and manufacturers in determining an objective price range based on highly varied technical specifications. This study aims to implement the Random Forest algorithm in classifying smartphone price ranges into four main categories, namely low, mid-range, high, and flagship. The research method was carried out systematically through the stages of loading a dataset of 2,000 entries, exploratory data analysis (EDA) to ensure data integrity, and model training with a training and testing data split of 80:20. The results showed that the Random Forest model achieved a significant overall accuracy rate of 89%. Based on feature importance analysis, it was found that RAM capacity was the most dominant determining factor, contributing 47% to prediction accuracy, followed by battery power and screen resolution as supporting features. These findings have strategic implications for manufacturers to prioritize memory capacity upgrades in determining product pricing in the market, as well as providing guidance for consumers in assessing the fairness of a device's price based on its technical capabilities.

Keterbatasan akses sumber listrik di wilayah terpencil atau situasi darurat sering kali menghambat ketersediaan daya bagi perangkat telekomunikasi. Penelitian ini bertujuan untuk merancang bangun alat pengisi daya (charger) hibrida yang mengintegrasikan penyimpanan energi kimia baterai dan konversi energi mekanik dinamo sebagai solusi alternatif. Metode penelitian menggunakan Research and Development (R&D) dengan pendekatan deskriptif kuantitatif untuk menguji stabilitas tegangan dan efektivitas pengisian daya. Prototipe dirancang menggunakan baterai 18650, dinamo 12V, dan modul regulator tegangan untuk menstabilkan luaran. Hasil pengujian menunjukkan bahwa integrasi regulator berhasil menstabilkan fluktuasi tegangan dinamo (rentang 5–12V) menjadi tegangan konstan 5V yang aman bagi ponsel. Pengujian efektivitas selama 15 menit menunjukkan kenaikan kapasitas baterai ponsel sebesar 5–10% pada mode baterai dan 2–4% pada mode dinamo. Disimpulkan bahwa meskipun mode dinamo memiliki efisiensi yang lebih rendah akibat variabilitas putaran manual, alat ini layak diimplementasikan sebagai solusi catu daya darurat (emergency kit) yang portabel, ekonomis, dan memiliki redundansi energi yang andal.

The rapid advancement of smartphone technology has shaped consumer buying behavior, especially among students who depend on these devices for learning and social interaction. This research examines how product features and price perceptions influence students’ decisions to purchase Oppo smartphones in Malang City. Using a quantitative research design, data were obtained through questionnaires distributed to 428 respondents and processed using multiple linear regression analysis. The findings indicate that both product features and perceived price positively and significantly affect purchasing decisions, with product features demonstrating a more dominant role. The proposed model accounts for 66.2% of the variance in purchase decisions, suggesting that these two factors play a substantial part in shaping consumer choices. The results highlight the need for manufacturers like Oppo to focus on continuous feature improvements and maintain competitive pricing to strengthen market appeal. It is also suggested that future studies integrate additional variables such as brand image, marketing promotions, or user experience to offer a broader and more in-depth explanation of the determinants influencing smartphone purchase behavior.

Penelitian ini bertujuan untuk memahami strategi komunikasi orangtua dalam membatasi penggunaan ponsel anak usia 8–10 tahun di Dukuh Kayon, Desa Batursari, Kecamatan Mranggen, Kabupaten Demak. Metode penelitian yang digunakan adalah kualitatif deskriptif dengan lima informan orangtua dari latar belakang sosial ekonomi berbeda. Hasil penelitian menunjukkan bahwa pola komunikasi orangtua bervariasi antara otoritatif, permisif terbatas, dan dialogis. Pola komunikasi dialogis dengan pendekatan active mediation lebih efektif dalam menumbuhkan literasi digital serta membentuk disiplin belajar anak. Kendala yang dihadapi orangtua meliputi keterbatasan waktu, tekanan sosial dari lingkungan teman sebaya, serta tuntutan akademik berbasis digital. Penelitian ini menyimpulkan bahwa strategi komunikasi dialogis yang konsisten, ditopang kolaborasi sekolah dan komunitas, dapat memperkuat pengasuhan digital dan meminimalkan dampak negatif penggunaan ponsel pada anak.

Business management based on the application of a combination of offline and online is inseparable from various challenges that can arise, especially in terms of HR management itself, namely the business owner. So that the right strategic action is needed so that the business can run well. This study aims to get an idea of ​​​​how the strategy is, and what challenges are faced in managing a business based on a combination of offline and digital affiliates at Rio Ponsel. This study uses a qualitative approach with a case study method and data collection through interviews with Rio Ponsel business actors. The results of the study showed that the business management strategy that combines offline sales systems and marketing through the TikTok affiliate program at Rio Ponsel is in the form of implementing internal strategies such as product development according to local market needs, implementing positive personal branding, and improving service quality directly. In addition, external strategies are also applied. Meanwhile, the biggest challenge faced by Rio Ponsel business actors is the high level of competition with competitors both in the offline and digital markets.

This research is entitled Analysis of Language Style and Concrete Words in the Poem “Doa Orang Sibuk yang 24 Jam Sehari Berkantor Di Ponselnya” by Joko Pinurbo. This research is a form of appreciation for literary works in the context of understanding language styles and concrete words in poetry. This study aims to describe and interpret the use of language style and concrete words in the poem titled “Doa Orang Sibuk yang 24 Jam Berkantor Di Ponselnya” by Joko Pinurbo. According to Sudjiman, language style includes diction or lexical choice, sentence structure, majas and imagery, rhyme patterns, and matra found in literary works (1987: 13) while concrete words are words that can be described concretely by the reader's mind when reading a poem. The method used in this research uses a qualitative method by investigating the language style and concrete words in the poem “Doa Orang Sibuk yang 24 Jam Sehari Berkantor di Ponselnya” by Joko Pinurbo so as to produce concrete data. With this research, it can produce data that can find out the language style and concrete words used in the poem “Doa Orang Sibuk yang 24 Jam Sehari Berkantor di Ponselnya” by Joko Pinurbo.

Tujuan penelitian ini adalah Untuk mengetahui dan menganalisis seberapa besar Pengaruh Perputaran Persedian Barang Terhadap Kebutuhan Modal Kerja Pada Bos Q Ponsel Sibolga. Adapun hipotesis yang diajukan adalah : Ada Pengaruh Perputaran Persedian Barang Terhadap Kebutuhan Modal Kerja Pada Bos Q Ponsel Sibolga Populasi dalam penelitian ini adalah seluruh laporan keuangan Bos Q Ponsel Sibolga. Sedangkan sampelnya adalah data laporan keuangan 3 tahun terakhir yakni tahun 2019 sampai tahun 2021. Data yang digunakan adalah data sekunder. Hasil perhitungan rasio persediaan barang diketahui tahun 2019 sampai tahun 2021 ditemukan sebesar 0,29 dan 0,30 artinya aset Bos Q Ponsel Sibolga hanya dapat menutupi 29% dan 30 % dari kewajiban jangka pendek Berdasarkan hasil perhitungan rasio modal kerja diketahui tahun 2019 sebesar 1,78 dan tahun 2020 sebesar 1,90 serta rasio modal kerja tahun 2021 sebesar 1,98 artinya Bos Q Ponsel Sibolga memiliki ketersediaan likuiditas tahun 2019 sebesar 178%, tahun 2020 sebesar 190% dan tahun 2021 sebesar 198% dari pembayaran kewajiban yang harus dilakukan. Koefisien korelasi persediaan barang terhadap modal kerja sebasar 0,998, hubungan tersebut sangat kuat  Model persamaan yang digunakan dalam penelitian ini adalah sebagai berikut Y = 1,273 + 0,824X menunjukkan kearah positif. Hasil uji thitung sebesar 15,973 > ttabel 12,706 maka hipotesis yaitu Ada pengaruh perputaran persedian barang terhadap kebutuhan modal kerja pada Bos Q Ponsel Sibolga dapat diterima                                                                                                           

Masalah utama dalam penelitian ini adalah dampak penggunaan handphone pada minat belajar siswa kelas X SMA N 1 Situjuah Limo Nagari. Karena pada saat sekarang ini minat belajar siswa sangat rendah dimana siswa hanya sibuk dengan handphonenya masing-masing. Tujuan penelitian ini ialah untuk mengetahui dampak penggunaan handphone pada minat belajar siswa. Penelitian ini menggunakan metode deskriptif dengan teknik pengumpulan data menggunakan wawancara dan observasi. Dengan cara melakukan wawancara dan observasi secara langsung dapat memperoleh hasil yang lebih akurat.

Pada saat ini dunia semakin berkembang dan kemajuan IPTEK tidak bisa dihindarkan karena hampir seluruh kehidupan berkaitan dengan teknologi. Termasuk pembayaran melalui telepon seluler telah menjadi cara pembayaran termudah, menggantikan cara pembayaran tradisional. Kemajuan teknologi menyebabkan konsumen bergantung pada seluler karena lebih cepat, lebih mudah, dan praktis untuk melakukan transaksi sehari-hari dengan menggunakan ponsel. E-wallet adalah salah satu metode yang kuat untuk melakukan pembayaran melalui online, pengguna sadar bahwa menggunakan e-wallet dapat membantu transaksi keuangan menjadi sederhana dan cepat. Dalam hal aplikasi keuangan, keamanan/ kerahasiaan privasi sangat penting di era digital di antara kelompok generasi milenial.

Rown Division adalah sebuah usaha di bidang clothing anak muda yang berada di kota Solo dan berusaha untuk mengembangkan area pemasaran. Pengembangan teknologi informasi yang sangat cepat merubah perilaku konsumen dalam berbelanja secara online dengan menggunakan teknologi ponsel. Hal tersebut membuat dunia usaha juga harus berinovasi di bidang teknologi untuk tetap dapat mengikuti perilaku belanja konsumen, maka dibuatlah penelitian perancangan user interface mobile untuk system ordering Rown Division. Desain meliputi pemetaan kebutuhan pengguna, dan desain user interface yang disesuaikan dengan user experience. Melalui penelitian desain user interface mobile ordering diharapkan dapat memberikan kemudahan kepada konsumen dalam berbelanja di Rown Division dengan menggunakan aplikasi ponsel dan dapat membantu perusahaan dalam pengembangan pemasaran.

This study discusses the application of fuzzy logic in determining the selling price of used cellphones with a case study on Kayyis Celluler Depok. This study was conducted to find out how to determine the selling price of used smart phones using the Mamdani fuzzy method approach. There are 4 fuzzy variables that will be modeled in this study, consisting of 3 input variables, namely the condition of the cellphone, market price, and cellphone accessories, and 1 output variable, namely the selling price of used cellphones. The inference process in the application of fuzzy operators uses the MIN implication function. Furthermore, the composition of all fuzzy outputs is performed using the max method. Then, confirmation or called defuzzification is done using the Centroid method.

BlackBerry is a mobile phone made in Canada. BlackBerry was firstintroduced in 1999, and is presented in Indonesia in mid-December 2004. Sinceit was first introduced, the BlackBerrywas much in demand by various groupswith the support of various mobile operators both CDMA and GSM. However,in these days it has decreased significantly. Most users at the end of 2012 asmuch as 79 million active use of BlackBerry mobile phones are recorded. But atthe end of March 2013it decreased as much as 3 million users and it decreasedup to 4 million users at the end of June 2013 who no longer use BlackBerrymobile phone. The final user of BlackBerry mobile phones is 72 million. Thepurpose of this study was to analyze the effect of brand characteristics, companycharacteristics, brand characteristics,and the consumer - perceived benefits to theconsumer brand loyalty on BlackBerry mobile phones in STIE TOTALWINSemarang.The population in this study were students STIE TOTALWINSemarang. Based on Slovin formula, the sample size was 100 respondents thatwere obtained by purposive sampling technique, i.e. students who use BlackBerryphones, at least one month and have experience in using another mobile phone.Primary data was collected through questionnaires and analyzed with multiplelinear regression analysis.The results showed that the Brand Characteristics,Company Characteristics, Consumer-Brand Characteristics and Perceived valuehas significant and positive effect on Brand Loyalty, both partially andsimultaneously. Company Characteristics became the biggest factors influencingbrand loyalty.