คอมพิวเตอร์, สีเขียว, แบบแผน, หน้าจอ, เทคโนโลยี, จอภาพ, อิเล็กทรอนิกส์, ฮาร์ดแวร์, ไม่มีรอยต่อ, พิมพ์ทั้งหมด, แกะสลัก
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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