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This dedication activity is focused on solving the problems that become priority problems, namely the lack of application of appropriate technology tools that can accelerate the process of coloring art products, and good and standardized management and financial strategies and website creation. The partners involved in this activity are J-Art SMEs led by Mr. Faisal Walad. This UMKM is located at Jalan Umar Gg. Karsidi No.70, Glugur Darat I Village, Medan Timur District. The service activities referred to are the provision and assistance of the use of wind compressor machines and spray guns, good management assistance and assistance of manual and electronic financial reports and the provision of website branding. This activity also resulted in several outcomes in the form of TTG implementation, management and financial assistance and a commercial website.Keywords: Air Brush; Management; Finance; Website.

The process of sending data in a vulnerable network such thing damage or errors that occur due to several factors such as noise, interference or also tissue factor unfavorable, Go-Back-N is a method of mechanisms controlling this error referred as Automatic Repeat Request (ARQ) , Effects ARQ is to change the data path that is not reliably reliable, the processes analyzed by Go-Back-N form of the transmission time of the frame, when the transmission/reply, propagation speed (slow, medium or fast), the time interval 'timeout' on timekeeper source and the number of frames to be transmitted.