In the trademark classification, bar code buttons and button printers belong to: 090 1 electronic computer and its external equipment, computer hardware 090732, adder 0900 19, calculation ruler 09010/,slide rule 090 102, and computer 002. Computer storage device 090342, computer 090372, recorded computer program (program) 090373, magnetic identification card 090529, magnetic disk 090533, floppy disk 090534, computer keyboard 090537, barcode reader 09058 1, optical disk (read-only memory) 090588. Computer peripheral equipment 090590, computer software (recording) 09059 1, computer software (recording) 09059 value frequency hopping activity training department 1, connector (data processing equipment) 090594, electronic pen (used for screen display system) 090598, electronic pen (visual demonstration device) 09. Interface 090603 for computer, magnetic data medium 090607, magnetic encoder 090608, magnetic tape device 090609 for computer, magnetic tape device 090609 (adjusting and loading seven poles for computer), microprocessor 0906 10, monitor (computer hardware) 0906 12, and monitoring program (. 4. Optical character recognizer 090665444 reader (data processing is located in Huizhou) 090620, scanner (data processing equipment) 090622, computer CD-ROM C090 136, computer disk drive 090634, electronic dictionary 090636, integrated circuit card 090640, which seems to be a smart card (integrated circuit) that has just adjusted its capacity. Calculator 090644, electronic game card 09065 1, electronic publication (downloadable) 090657, computer program (downloadable software) 090658, mouse pad 090662, wrist pad 09 combined with distance product computer based on liquid level meter and computer game software 0. Downloadable ringtone 090694, downloadable music file 090695, downloadable video file 090696, USB flash drive Shushou County Store 090700, portable computer 090707, portable computer special package 090709, portable computer chassis 0907 10, downloadable computer application software 0907 17.