| Instruction | Brief description |
| ABS | Forms the absolute value of a number. |
| ACS | Arcus Cosinus function. |
| ADIN ON/OFF/STOP | Permit/prevent similar INTERRUPTS. |
| AIN | Decimal value of the similar level supplies. |
| ALARM$ | Determines alarm time and notification of emergency. |
| AREAD | Reads displayed value into a variable. |
| ARUN | A BASIC program starts automatically. |
| ASC | Supplies the ASCII code of a character. |
| ASN | Arcus sine function. |
| ATN | Arcus seaweed function. |
| AUTO ONE | Generate line numbers. |
| BEEP | Produces different tones. |
| BEEP ON/OFF/STOP | Switches the tone giver in or off |
| BLOAD | A machine Progra loads mm von Diskette. |
| BREAK ON/OFF/STOP | Effect of the BREAK key switches in/out. |
| BSAVE | Protects coded programs on diskette. |
| CALL | A coded program starts |
| CHAIN | A further BASIC program loads and starts it from a current BASIC program |
| CHR$ | The character of a ASCII code supplies. |
| CLEAR | All variables delete. |
| CLOAD | A BASIC program loads from cassette. |
| CLOAD? | Checks a loaded BASIC program. |
| CLOAD M | A coded program loads from cassette. |
| CLOSE | A file closes. |
| CLS | The display deletes. |
| COLOR | Selects the coloured pencil of the printer |
| COM$ | Supplies a stringer with the adjusted communication parameters. |
| COMn ON/OFF/STOP | Permitted or communication INTERRUPTS prevent. |
| CONT | A BASIC program interrupted with STOP/BREAK continues. |
| CoPy | Copies diskette files. |
| COS | Supplies the Cosinus of an angle. |
| CSAVE | Protects BASIC programs on cassette. |
| CSAVEM | Protects coded programs on cassette. |
| CSIZE | Determines the size of the characters. |
| CURSOR | Positions the cursor |
| DATA | Holds ready with READ to reading data |
| DATE$ | The current date contains. |
| DEG | Sexagesimal/Dezimal transformation of an angle. |
| DEGREE | Angle mode switches to old degrees. |
| DELETE | Deletes program lines. |
| DIM | Reserves workstation for variables and arrays |
| DMS | Dezimal/Sexagesimal transformation of angles |
| DSKF | The free diskette capacity displays. |
| END | Terminates a BASIC program. |
| Eof | Points to the end of a file |
| ERASE | Certain variables and array deletes |
| ERL | The number of the error-adhered line supplies. |
| ERN | Supplies the code of a pending error. |
| EXP | Exponential function. |
| FILES | Table of contents gives the diskette out |
| FOR..next | Permitted determined program loops. |
| GCURSOR | Positions the diagram cursor |
| GLCURSOR | Positions the pressure pin in the diagram mode. |
| GOSUB..return | Leads subroutines out |
| GOTO | Branched out to a certain line. |
| GPRINT | Diagram sample on the display draws. |
| DEGREE | Angle mode switches to Neugrad |
| GRAPH | Sets the printer into the diagram mode. |
| HEX$ | Supplies the Hex stringer of a number. |
| IF..then | Enabled caused program branches. |
| INIT | Initialize modules, diskettes and the receive buffer |
| INKEY$ | Character from the keyboard buffer gets. |
| INP | Supplies data of the processor port |
| INPUT | Permits the data input during a current BASIC program. |
| INPUT # | Reads data from a file. |
| INSTAT | Supplies the status of the control signals of an INTERFACE. |
| INSTR | Looks up a dividing ring within a given stringer. |
| INT | Supplies the whole proportion of a number. |
| KBUFF$ | Character writes into the keyboard buffer. |
| KEY ON/OFF/STOP | Switches function keys in/out. |
| KEY ACT | Set/deletes repeating/click functions of the keys. |
| KILL | A diskette file deletes. |
| LCURSOR | Induces printer pin to certain position. |
| LEFT$ | Supplies left justified dividing ring. |
| LEN | Determines the length of a stringer. |
| LET | Variable assigns values |
| LF | Provides for the line feed. |
| LFILES | A diskette table of contents prints. |
| LINE | Connects points of display with a line. |
| CUNNING | Lists program lines in the display. |
| LLINE | The connecting line of two points prints. |
| LLIST | Prints program lines. |
| LN | Supplies the Naperian logarithm. |
| LOAD | A file loads from diskette. |
| LOC | Record number of a file supplies. |
| LOCK / UNLOCK | MODE key switches in/out. |
| LOF | The file size supplies |
| LOG | Supplies the Briggs logarithm. |
| LPRINT | Transmits data to the printer or a serial INTERFACE. |
| MAX FILES | Determines the maximum's number of open files. |
| MEM | Number of free storage spaces supplies. |
| MERGE | Joins two programs in the memory. |
| MID$ | Supplies the center section of a stringer. |
| MOD | Supplies the remainder of an integer division. |
| MODE | Selects the display mode. |
| NAME | A file designates over |
| NEW ONE | Or points storage space deletes too |
| ON ADIN GOSUB | Branched out with similar INTERRUPT. |
| ON $COcMn GOSUB | Branched out with with serial INTERRUPT. |
| ON ERROR GOTO | Branched out with appearance of an error. |
| ON GOSUB | Required subroutine reference. |
| ON GOTO | Required program branch. |
| ON KEY GOSUB | Branched out with keyboard Interrunpt. |
| ON PHONE GOSUB | Branched out with modem INTERRUPTS. |
| ON TIME$ GOSUB | Branched out at specified time-of-day. |
| OPEN | Opens files for access options. |
| OUT | Writes data to a processor port. |
| OUTSTAT | Sets control signals of the RS-232-Interfaces. |
| PAPER | Sets type of paper and vertical pressure range. |
| PASS | Or resets a password (pass word) sets. |
| BREAK | Shows data for short time on |
| PCONSOLE | Format/EOL code for printer/INTERFACES sets. |