Desktop Calculator. Super large 12 digits, fluorescent display, two-color ribbon prints at 4.1 LPS. Has equal plus logic with left hand total key for users who prefer this keyboard layout. Two independent tax keys, four key memory, grand total, square root, delta percent of change, change sign (+/-), date/non-add, cost-sell-margin keys, clock/calendar feature displays and prints the current time or date, item count, automatic constants and backspace keys.