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Website merupakan salah satu sarana promosi alternatif untuk memasarkan produk atau jasa. Kedai Geulish merupakan suatu usaha perdagangan yang menjual berbagai macam masakan makanan dari daerah jawa barat. Karena kurangnya media informasi pada Kedai Geulish, masyarakat mengalami kesulitan dalam mencari informasi makan. Kedai Geulish berharap dapat lebih meningkatkan pelayanan di masa mendatang. Informasi-informasi yang berhubungan dengan Kedai Geulish di harapkan dapat lebih mudah di akses oleh para pelanggan. Sehingga terjadi hubungan yang erat antara pihak Kedai Geulish maupun pelanggan yang ingin mengetahui informasi makanan yang ada pada Kedai Geulish. Pada pembangunan sistem tersebut dibutuhkan data pendukung yang diperoleh menggunakan teknik pengumpulan data seperti: observasi, wawancara dan pustaka, sedangkan dalam pembangunan sistem menerapkan metode pengembangan software RAD (Rapid application Development). Metode ini sangat dibutuhkan untuk pembuatan sistem. Sistem tersebut dirancang menggunakan php dan mysql. untuk tahap akhir pengujian menggunakan black box testing yang menunjukkan hasil bahwa sistem yang dibangun sudah sesuai dengan analisa kebutuhan. Hasil dari penelitian adalah sebuah Website dengan nama domain kedaigeulish.com yang mana Website Kedai Geulish berisi tentang informasi yang ada pada Kedai Geulish tersebut dengan memiliki halaman yang saling untuk meningkatkan pelayanan informasi dan promosi pada Kedai Geulish.

PG were still using a manual system, especially the administration section which is handling information process that was not regulated in a good information base system, namely data processing.Procurement of heavy equipment which takes quite a long time from manual recording, preparation of reports, to searching for meaningful data on the company's heavy equipment, and can also assist the administration in searching for information contained in the procurement of heavy equipment. To overcome this problem, a program was created that could assist administration staff in managing data on heavy equipment procurement, speed up data collection on heavy equipment procurement, make it easier for administration to store data, assist in knowing financial income and expenditure transactions, help speed up data search and creation, reports and others. With the protoyping model (life cycle using prototyping) for the programming languages ​​used are PHP and MySQL. The result is to make it easier for CV. PG in the process of procuring heavy equipment data, and can also help the administration in searching for data that is in the procurement of heavy equipment.

Computer mining rigs are specially designed for only one purpose which is to mine crypto assets efficiently and effectively. Mining takes a lot of time, therefore it is very important to pay attention to computers for mining. The better the quality of the PC or computer, the faster the mining process will be. So far, consumers in choosing a mining rig computer only observe the mining rig computer without looking at special criteria such as price, motherboard, processor, VGA, power supply and RAM. COPRAS method assessment criteria include price criteria, motherboard, processor, VGA, power supply and RAM.. The system development method uses a prototype, the system design uses UML and the system manufacture uses PHP and MySQL. The results of the computer mining rig recommendations calculated using the COPRAS method are 12 GPUs 381 mh/s with a value of Ui = 1,000, Rig RTX 2060 with a value of Ui = 0,8157, Rig 6 x RTX 3060 with a value of Ui = 0,7108 and Rig RTX 2060 II with a value of Ui = 0.7014..