Stock reports on purchases and sales of a period. useful for helping employees to assess the amount of inequality in the flow of purchases, monitor stock / inventory of goods, and provide reports both purchase reports, sales reports, stock condition reports, and profit / profit reports to management to determine further business policies The process of recording transactions in a conventional or paper-based manner is identical with several weaknesses, namely easily damaged, difficult / long when looking for stored data, difficult / long when it comes to generating reports. These weaknesses can be corrected by implementing computer-based monitoring applications. If the monitoring application is planned/made properly, the computer-based information system is relatively safer. The model to be developed refers to the Research and Development (R&D) model from Borg and Gall and the tools used and the tools used to design the system are use case diagrams, sequence diagrams, activity diagrams, and class diagrams. while the implementation of making stock/inventory monitoring applications is done with PHP web-based programming and databases using MySQL. This application can help and get more accurate information about the stock data of goods that have run out.

Almost every house already uses a Wifi network as internet access. With the help of this Wifi network, it is used as Middleware that can be controlled and monitored when outside the home. This study engineered data packet traffic using the ESP8266 wifi module on the Middleware device network to find out how fast the data packet capture time using wifi can be controlled and monitored when outside the home. Based on the analysis, the measurement results on the IoT device network to find out how fast the data time using wifi it reaches 2.95 kbps to 7.4 kbps.

SMK Kyai Ageng Pandanaran Semarang  is one of the private vocational high school that want to improve quality of teaching and learning to produce quality graduates. During these teaching and learning methods that are used less than maximum, students are easily saturated, study time is limited and there are no facilities for new teachers to learn service and auto repair material  efficiently. The authors develop a learning media services and auto repair expert system based that aims to resolve the issue.
Learning media is developed by prototype approach. Expert system technology advanced trace method is applied into the learning media through   the facilities of diagnosis and troubleshooting to help new teachers and student learning to identify the damage automobile. Database can be managed and updated by senior teachers by utilizing the MySQL database and PHP programming language. In addition, this learning media also features video demonstration of the *.swf file and the theoretical material in the form of a *.pdf file.
The results of the development has produced a new system of web-based expert system as a supplement learning media services and auto repair in the process of teaching and learning activities.

This research, in general, aims to improve the learning outcomes of class X MIPA 4 students of MAN 1 Grobogan in the 2018/2019 academic year by implementing multimedia learning. And specifically it aims to make students able to achieve the learning objectives by producing a minimum KKM score of 70 and at least 80% of the total students are able to reach this minimum limit. The research method used in this research is the Classroom Action Research Method or better known as the Classroom Action Research (PTK) method. The PTK method is a process of assessing learning problems in the classroom through self-reflection in an effort to solve these problems by taking planned actions in real situations and analyzing any effects of these treatments. The results of research conducted on class X MIPA 4 MAN 1 Grobogan, the application of multimedia presentation learning media on the basic laws of chemistry and stoichiometry with the concept of enjoyful learning can improve student learning outcomes. That the application of multimedia presentation learning media can improve student learning outcomes in chemistry, especially in the material of the basic laws of chemistry and stoichiometry

Abstract The try out process is an exam simulation exercise every year before the National Examination conducted by school institutions. The main objective of this exercise is as an effort of school institutions to prepare students to get maximum scores on the National Examination. Madrasah Working Group (KKM) of MTs 2 Demak is a body within the Ministry of Religion which fosters coordinative cooperative relations between Demak MTs 2 and private Madrasahs in the area of Demak 2 MTs. So far the Try Out system at the KKM level still uses manual procedures and is still off line using paper. As a result of this system, there are still delays in the distribution of questions and reports at the central level. In making Try Out questions, randomization of questions only uses the package method questions A, B and C, so there are still students who give each other answers. LCM (linear congruent method) is a method of generating random numbers on the Try Out. The principle of this method is where the form of the LCM number as the scrambler of the question, including increament (c), modulus (m), multiplier (a), and initial value (Z0), which has provisions: c = 0 ? c <m, m = 0 <m, a = 0 <a <m, and Z0 = 0 ? Z0 <m. Making this application using the PHP programming language and database used is MySql with the R & D system development method according to Borg and Gall, including: Research and information collecting, Planning, Develop prelminary form of product, Preliminary field testing, Main product revision, Main field testing , Operational product revision, Operational field testing, Final product revision, Dissemination and implementation. Madrasah Working Group (KKM) Demak MTs 2 in conducting a try out system still uses the manual offline method and the problem scrambler is only limited to packages A, B, and C, then with the Try Out Information System the web-based KKM level is expected to facilitate parties KKM and tighten students to avoid fraud.