AppleTrek was published in November 1978 by Wendell Sander (who later became head engineer of the Apple /// Team), on a software collection called The Apple Tapes-Introductory programs for the Apple II. It was written in Integer BASIC for the original Apple IIs which didn't have floating point BASIC. Pop quiz: How do you do trigonometry calculations when you don't have floating point nor a sin() function???
The object is simple: You are the captain of the E. You have been assigned a 3 year mission to seek and destroy K battle cruisers, with the help of Bs scattered across the galaxy.
```   :   :   :   :   :   :   :   :   :   :
:   :   :   :   :   :   :   :   :   :
:   :3  :2  :5  :   :   :   :   :   :
:   :14 :4  :8  :606:7  :   :   :   :
:   :3  :6  :404:4  :6  :   :   :   :
:   :   :6  :4  :4  :3  :   :   :   :
:   :   :   :   :   :   :   :   :   :

COMMAND?
1 YEARS               2.92
2 STARDATE            3424.0
*     K    3 CONDITION           RED
*          4 SHIELDS             50%
5 SHIELD ENERGY       2215
K   K *      6 AVAIL ENERGY        2470
K E7 PH TORPS            10
*            8 KLINGONS            43
1 2 3 4 5 6 7 8  BASES               2
COURSE NOT SET.
```
How to read the navigation array: The hundreds digits represent the number of Klingons occupying a sector, the tens digits are the starbases and the units are the stars.
You are equipped with photon torpedo tubes, phaser arrays, a navigation and tactical computer as well as a full complement of the best starfleet officers of the Federation.
A short help file found somewhere on Google:
```APPLE TREK COMMANDS  --  Compiled by Paula  --  Rev.3/80
--------------------------------------------------------

FIRING ANGLES
------------------
\ | /                2--Shield Energy
\|/                 3--Damage Report
270---E---90             4--Phasers
/|\                 5--Photon Torpedos        COMPUTER COMMANDS
/ | \                6--Load Photons         ---------------------
225 180 135             7--Ships Computer ----> 1--Compute Quadrant
8--Probe                2--Lock Phasers
9--Self Destruct        3--Lock Photon Torpedos
4--Lock Course
5--Compute Trajectory