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This manual is a valuable resource for those working with IBM Mainframe computers. It provides detailed information and instructions for using the FOCUS software from Information Builders. With this manual, you can learn how to effectively describe and report data, making it an essential tool for any user. The vintage quality of this manual provides a unique insight into the early days of computing and adds to its collectability. Whether you're a collector or a user of vintage IBM Mainframe computers, this manual is a must-have. Get your hands on this rare gem today!
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.