Dunia mobile phone beserta aplikasinya berkembang dengan pesat selepas era millennium ini. Tampaknya tidak sulit lagi untuk membayangkan kalau di masa depan kita akan membawa sebuah perangkat teknologi dimana selain sebagai alat komunikasi mobile, juga mampu memutar musik dan video DVD, menonton TV, bermain game, kamera digital, membaca buku, panduan peta, transaksi perbankan, browsing, dan sebagainya. Salah satu teknologi aplikasi yang sedang trend saat ini adalah perkembangan mobile application untuk perangkat Android. Android menyediakan platform terbuka bagi para pengembang untuk menciptakan aplikasi sendiri untuk digunakan oleh bermacam peranti bergerak Android. Mobile application yang dibuat pada Tugas Akhir ini adalah aplikasi TOEFL (Test of English as a Foreign Language). Kebutuhan akan rekomendasi nilai TOEFL telah menyeluruh hampir di setiap institusi pendidikan, sehingga muncul beberapa aplikasi TOEFL yang dimanfaatkan sebagai sarana latihan yang dapat mempermahir para user dalam memperbaiki nilai TOEFL mereka. Seiring dengan perkembangan teknologi di era modern yang menginginkan layanan yang tidak terbatas oleh tempat dan waktu, latihan TOEFL ini dapat dibuat pada perangkat mobile yang lebih fleksibel dan efisien. Oleh karena itu dibangun suatu aplikasi TOEFL dengan menggunakan operating system Android. Dari hasil pengujian yang dilakukan didapatkan hasil bahwa aplikasi ini dapat menjalankan semua fungsi dan fiturnya sesuai dengan yang diharapkan. Kemudian aplikasi ini sangat membantu user dalam mempersiapkan test Toefl mereka.

Dunia mobile phone beserta aplikasinya berkembang dengan pesat selepas era millennium ini. Tampaknya tidak sulit lagi untuk membayangkan kalau di masa depan kita akan membawa sebuah perangkat teknologi dimana selain sebagai alat komunikasi mobile, juga mampu memutar musik dan video DVD, menonton TV, bermain game, kamera digital, membaca buku, panduan peta, transaksi perbankan, browsing, dan sebagainya. Salah satu teknologi aplikasi yang sedang trend saat ini adalah perkembangan mobile application untuk perangkat Android. Android menyediakan platform terbuka bagi para pengembang untuk menciptakan aplikasi sendiri untuk digunakan oleh bermacam peranti bergerak Android. Mobile application yang dibuat pada Tugas Akhir ini adalah aplikasi TOEFL (Test of English as a Foreign Language). Kebutuhan akan rekomendasi nilai TOEFL telah menyeluruh hampir di setiap institusi pendidikan, sehingga muncul beberapa aplikasi TOEFL yang dimanfaatkan sebagai sarana latihan yang dapat mempermahir para user dalam memperbaiki nilai TOEFL mereka. Seiring dengan perkembangan teknologi di era modern yang menginginkan layanan yang tidak terbatas oleh tempat dan waktu, latihan TOEFL ini dapat dibuat pada perangkat mobile yang lebih fleksibel dan efisien. Oleh karena itu dibangun suatu aplikasi TOEFL dengan menggunakan operating system Android. Dari hasil pengujian yang dilakukan didapatkan hasil bahwa aplikasi ini dapat menjalankan semua fungsi dan fiturnya sesuai dengan yang diharapkan. Kemudian aplikasi ini sangat membantu user dalam mempersiapkan test Toefl mereka.

Teaching materials are the most important part of learning activities. The presence of instructional materials makes it easy for lecturers and students to give lectures and exercises in lectures especially for calculus courses. Calculus is a branch of mathematics which contains derivatives, integrals, limits, and infinite series. Calculus plays an important role in the fields of science, engineering, and economics. But some students are many who don`t like the subject. Because the pattern of giving material from lecturers is less effective so students cannot develop calculus in their daily lives, especially in the field of technology. The purpose of this paper is to develop instructional material media that were previously traditional in the form of paper media and developed into an android based so that students can learn anywhere and anytime by assisting from smartphone phones. So students can have interest and can develop theories that are in calculus in everyday life, especially in the field of technology.

Mobile phone and its applications is growing rapidly after this millennium era. It seems not difficult to imagine that in the future we will bring a device other than as a technology in which the mobile communication device, is also capable of playing music and video DVDs, watch TV, play games, digital cameras, read books, guide maps, banking transaction, browsing, and so forth. One application of technology that is a trend today is the development of mobile application for Android devices. An open platform is provided by android so the application can made by developers. Mobile application that made in this Final Project is the application of the Test of English as a Foreign Language. TOEFL recommendation has been through in almost every educational institution, so there is some application that utilized TOEFL as a training tool that can improve their TOEFL score. Along with technological development in the modern era who want a service that is not limited by place and time, practice TOEFL can be made on mobile devices more flexible and efficient. Therefore constructed a TOEFL application using the Android operating system. The results of tests performed showed that these applications can run all the functions and features are as expected. Then the application is very helpful for the user in preparing their TOEFL test.

Teaching materials are the most important part of learning activities. The presence of instructional materials makes it easy for lecturers and students to give lectures and exercises in lectures especially for calculus courses. Calculus is a branch of mathematics which contains derivatives, integrals, limits, and infinite series. Calculus plays an important role in the fields of science, engineering, and economics. But some students are many who don`t like the subject. Because the pattern of giving material from lecturers is less effective so students cannot develop calculus in their daily lives, especially in the field of technology. The purpose of this paper is to develop instructional material media that were previously traditional in the form of paper media and developed into an android based so that students can learn anywhere and anytime by assisting from smartphone phones. So, students can have interest and can develop theories that are in calculus in everyday life, especially in the field of technology.

The value obtained by Fadilah Vocational School students about motorcycle injection systems is still below the value of mastery learning. Many factors cause students to get low scores in the competence to understand the gasoline fuel system, especially the Honda motorcycle injection system. One of the factors that makes it difficult for students to understand injection material is the unavailability of Honda PGM-FI system props. The limited number of teaching aids is a shortage of private schools in general due to the limited costs of procuring teaching aids for the PGM-FI system. Less interesting learning model is also a factor in the low value of students in certain subjects. Augmented Reality is a developing technology in the world, combining two-dimensional or three-dimensional virtual objects into a real three-dimensional environment and then projecting these virtual objects in real time. Three dimensions commonly abbreviated as 3D, or space, are forms of objects that have length, width, and height. This term is usually used in the fields of art, animation, computers and mathematics. The application of Augmented Reality is not like virtual reality that completely replaces reality, but only adds or completes reality by using libraryVuforia, the image in the form of three dimensions will appear on the screen of the Android smartphone assisted by the rear camera. The application of Augmented Reality in learning is more interesting because this technology provides real visualization. So that learning in the field of education is more interesting and uses the latest technology so that students are more interested in learning.

Free internet access provided at a café is expected to increase the interest of café visitors. Cafe Roose provides free internet access to consumers, it is expected that with free internet access, the number of visitors to the café will increase. Free internet access is spread through WIFI devices that use a 2.4 Ghz frequency. This wifi is used because almost all communication devices are used such as Smart Phones and laptops using WIFI. The problem that arises is that internet access on public networks requires high protection so as not to be misused, the increasing number of users causes the internet access to be unstable. Officers also cannot control the use of internet access. From these problems, the governance of free internet access was made on roose café using mikrotik rb 750.

SMS (Short Message Service) is used because it is cheap, easily accessible and a popular method to sent information by a text message using a mobile phone. However, the original SMS application on android phones are have no security features. A message sent is still in plain text form so easily be intercepted without unknown by the sender or the recipient. Therefore, proposed encryption algorithm RSA (Rivest Shamir Adleman) and Caesar Cipher to secure a text message sent. The results showed that the application can prevents the contents of SMS to intercepted or viewed by unauthorized people because the message that is sent is not in plain text, but the message has been encrypted (cipher text).