... software forpower sellers on platforms such as eBay/Amazon/cqout, and is a modular based software package that grows with your requirements, from basic invoice production, to stock control and accounts. After this comes OEMworld, supplying oem software for Windows computers along with a range of bespoke made computer, and accessories such as fans, memory, motherboards etc. Carter Brown Systems was established primarily online in 1999 and is a family run business, having won awards for e-commerce two years running.