Very primitive computer?!

The plastic box, innovative colors and place on the desk are correct, but the technology appears to be rather primitive. What i like about it is there's no power source! A manual calendar: who'd a thunk it?

when i was younger, this calendar would have worked fine, but now i have to look at the calendar to find out the year as often as the month and day!

i tried to put this under 'Calendars', but couldn't find it. so i put it under 'Clocks' and will consider it a very slow, primitive clock.