The term 'abacus component' can be summarized as a BEAD, which is a four-letter word. A BEAD is a small, round object made of glass, wood, metal, or plastic, often with a hole through the middle so it can be strung on a thread or wire. Beads are commonly used in jewelry and other decorative items, and have been used for centuries as a form of counting and calculation. The abacus is an ancient counting device that uses beads to represent numbers, and the beads are an essential component of the abacus.