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In this study, a ranking of the handling of Covid-19 in Asian countries was carried out using the AHP-COPRAS hybrid method. The ranking process uses the COPRAS (Complex Proportional Assessment) method, while the determination of the weight value uses subjective weighting but the criteria weights through a validation process using pairwise comparison which is part of the AHP (Analytical Hierarchy Process) method. The ranking process uses six assessment criteria: test per population, to positive per test, positive per population, healed per positive, died per positive, active per positive. The final result of the ranking shows that countries with high death cases and low cure cases will make the country's ranking fall, because cases of death and healing cases have the highest weight in their role in forming utility values.

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..

Interest in buying a motorcycle is certainly caused by various criteria, from the criteria of brand, model, type, price, engine capacity, transmission, braking, year of manufacture and fuel consumption. Of the many criteria, of course, makes buyers get a variety of choices according to their wishes. However, in practice, there are difficulties in determining the criteria in the selection of motorcycles because many consumers do not understand the criteria for motorcycles. The weight of the assessment criteria for the COPRAS method for choosing motorcycles are namely price criteria weighing 40%, fuel consumption weighing 30%, engine capacity weighing 20% ​​and year of manufacture weighing 20%. The recommendation results from the selection of criteria for the Honda brand, type of scooter, automatic transmission and single disc braking, the recommendation results obtained are Beat Street with a value of 1,000, Genio with a value of 0.995, Scoopy with a value of 0.929, Vario 150 with a value of 0.866, PCX with a value of 0.812 and ADV with a value of value 0.796.