1） Embroidery Definition:
Decorative stitching on fabric. Generally involves non-lettering designs but can also include lettering and/or monograms. Evidence of embroidery digitizing exists during the reign of Egyptian pharaohs, in the writings of Homer and from the Crusaders of the 12th century. Evolved from hand work to manual sewing machines and from hand-looms and schiffli machines with hundreds of needles to high-speed, computerized multihead machines.
2）Database Definition:
A set of related files that is created and managed by a database management system (DBMS). Today, DBMSs can manage any form of data including text, images, sound and video. As far as the hardware is concerned, it's all bits and bytes.
Embroidery Hoop is an embroidery digitizing device which is made from wood, plastic or steel with which fabric is gripped tightly between an inner ring and an outer ring and attached to the machine's pantograph. Machine hoops are designed to push the fabric to the bottom of the inner ring and hold it against the machine bed for embroidering.