Xerox Xrx-230 Calculator [2021] -

Because the device lacks algebraic plotting, text storage, or programmable graphing channels, the basic 8-digit design complies with local standard exam guidelines. Students can use it during elementary algebra, geometry, and introductory science exams without violating anti-cheating regulations.

: Includes an automatic shut-off feature to conserve power. User Perspective xerox xrx-230 calculator

It features a bright, green vacuum fluorescent display (VFD), which was the gold standard for visibility in various lighting conditions before LCDs became common. Because the device lacks algebraic plotting, text storage,