blood glucose meter chip chips circuit coding computer computers glucometer glucose meter isolated medical medical engineering medical technology medicine technology microelectronics science system tech technology black electronics red resistor solder white capacity colorful coloring colors colourful colouring colours data data storage discs disks floppies floppy disks history it low capacity obsolete outdated outdated technology past small storage storage disks technological textures background backgrounds board color colors component electronic part parts power technologic cold energy factory fantasy future metal science fiction silver sky technique advice advising arrow blue communicating communication communications directing direction directional indication indicator satellite-station sign signs space space-technology tracking weathered wording words barred bars card operated card-key confine confined contained control controlled gate grille heavy key-card keyless lock locked modern padlock portable safety secure secured security solid cellphone mouse telecommunication
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