Kosmos Astro

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Calculators: Handheld: Kosmos Astro

	Size (approx):	60-75mm x 120mm x 25mm (w,h,d) Weight 104g excluding batteries
	Power:	3.0V DC, 300mW, 2 x AA size batteries. Does not accept an adapter.
	Case:	Ground-breaking shape to allow for the circular display filter. Two piece matt black plastic case with a full front brushed aluminium panel. Black printed key labels. An oversized (and convex) blue tinted display filter is painted white with various guides. The on/off switch is on the left hand side, about half way up.
	Display:	8 digit blue VFD display with a ninth digit for negative and error signs. Also has four green and four yellow discrete LEDs as "astro indicators".
	Features:	Standard four functions only in calculator mode. See below for further description of astro functions.
	Age:	1979
	Manufacturer:	Kosmos, made in Taiwan, Serial number 108281.
	Comments:	A fabulous calculator that should be in everyone's collection! It was also available as the Radio Shack Astro, and is one of at least three different models they made. Very basic calculator that is riddled with errors and shaky logic - why did they even bother? There is an extensive instruction panel on the back - which is essential if you do not have the manual. The original case is soft blue plastic in the shape of the calculator with an open top.

Components:
Boards:
Construction:	Whilst the case has two "lever points" I think there is a screw under the back info panel which I am not willing to damage to open this calculator. Can any one verify this?

Logic comments:	The (C) key operates as a cancel entry function on the first press whilst a second press will clear the calculator
	Input overflow is suppressed, inputting a ninth digit is ignored
	Negative numbers are shown with a "-" in the far left (ninth) digit thereby allowing full eight digit negative numbers
	There is no constant function
	Divide by zero just results in zero with no error
	Overflow displays the result and "E" in the ninth (far left) digit with zero as the result and is not recoverable
	The astro functions invoke a pyrotechnic display of flashing digits for over ten seconds.
	The astro functions consist of: Personal Astrological Information, Compatibility of two people, In-depth Compatibility analysis, daily horoscope, In-depth analysis of daily trends and daily horoscope questionnaire - wow!