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1. OGICAL SYSTEMS INC DY an ae LDOS is a new generation of operating system for the TRS 80 computers It is a totally device independent system capable of device linking routing setting and filtering LDOS will support up to eight logical drives including 5 and 8 floppies single double density single double sided and up to 80 tracks all available step rates are supported Hard disks are supported up to 13 Megabytes as a single drive Hard drives may be partitioned to represent up to six logical drives depending on the number of heads on the drive True data transportability is now a reality Model IMI LDOS disks can be either single or double density and can be read or written on either machine Model ILDOS supports double density with the Lobo LX 80 interface or with the Percom Doubler II A complete Supervisory Call table is available in LDOS 5 1 This will allow assembly programs to be transported directly between machines on all Z 80 implementations of LDOS LDOS is completely documented in an extensive operating manual over 280 pages containing both user instructions and a large section with technical information Numerous examples are given to detail all operating functions Full customer support is provided and includes a toll free customer support number maintenance and enhancement updates a MicroNET bulletin board for feedback and messages a quarterly newsletter and a full time support staff To facilitate handl
2. Backup only those files that have been Modified Backup files by date or a range of dates Backup Visible Invisible or System files Backup only those files that do do not exist on the destination disk and Backup between drives of different sizes and configurations Backups between disks of different configurations will prompt for disk swaps if the destination disk becomes full CMDFILE A user oriented utility for handling system tapes and load module format disk files CMDFILE allows for concatenation and load offset of tape and disk files and will move files between disk and tape CONV A utility to move files from Model II TRSDOS 1 2 or 1 3 to an LDOS formatted diskette requires two drives FORMAT Format allows for the following disk parameters to be specified disk name and master password single or double density single or double sided number of tracks and the bootstrap step rate for system disks Format will also format hard drives and add system information to a hard drive that has been partitioned LCOMM An advanced communications package that allows machine to machine communications supporting the keyboard display printer and transmission and reception of disk files LOG Provides a way to log in a diskette configuration when using REPAIR Corrects certain information missing from Model I double sided disks in drive 0 TRSDOS 2 3 diskettes This makes these disks directly available for read write operati
3. 53092 414 241 8030 East MISOSYS 5904 Edgehill Dr Alexandria VA 703 960 2998 LDOS is a product of Logical Systems Inc 11520 N Port Wash Rd Mequon Wis 53092 414 241 3066 Specifications are subject to change without notice OGICAL SYSTEMS Ne COO Logical Systems Inc has spared no effort or expense in developing LDOS or in setting up ongoing support for its dealers and users Review thes special support features and compare them to what other operating systems offer their dealers and customers You will agree that LDOS is really ina class all by itself 1 gt TOLL FREE 800 NUMBER for dealer and customer service NOT an order line This phone number is only published in the LDOS user s manual so only existing customers and dealers will have it 2 gt ONE YEAR of maintenance comes with each LDOS The user may send in his original diskette with 5 00 as often as he wishes and receive the latest version of LDOS This service eliminates the need for the user to apply patches or enhancements himself although he may do so if he wishes 3 gt QUARTERLY NEWSLETTER for all registered LDOS users A newsletter containing useful information from other LDOS users as well as technical information and editorial content from our staff and distributors 4 gt MICRONET BULLETIN BOARD service sponsored by Logical Systems Inc and available for all LDOS users who are also MicroNET subscribers The LDO
4. S registration card contains a space for the customer to register his MicroNET user number with our customer service department He will then be logged into our bulletin board as a valid user The bulletin board will be maintained by our customer service personnel on a regular basis to answer questions and provide timely information 5 gt ONGOING SUPPORT will be provided to LDOS users After each year of ownership each LDOS user will have the opportunity to extend his LDOS support and services for a nominal annual fee This support includes access to all of the above services including the quarterly newsletter 6 gt COMPETITIVELY PRICED at a suggested retail of 169 00 which includes an extensive manual with a lengthy section dedicated to technical information Contact your local dealer or the distributor nearest you for additional information or to order your copy of LDOS Distributed by LOBO DRIVES INT GALACTIC SOFTWARE MISOSYS 354 S Fairview Ave 11520 N Port Washington Rd 5409 Edgehill Dr Goleta CA 93117 Mequon WI 53092 Alexandria VA 22303 805 683 1576 414 241 8030 703 960 2998 LDOS is a product of Logical Systems Inc Prices subject to change without notice 11520 N Port Washington Rd Mequon WI 53092 414 241 3066
5. dify memory modify and input output to specified ports DEVICE Displays all currently enabled disk drives logical devices and user selected options along with I O directions routing and I O driver addresses DIR Displays disk drive directories Display parameters include full or partial file name and or extension including wildcard characters Mod date or range of dates Invisible files and System files The display output may be selected to show file space and record allocation logical record length protection status Modification date Modification status and may be sent to a line printer DO The Do command allows the system to compile and execute a predefined series of commands and keystrokes stored in a disk file A unique Job Control Language provides screen and audio alerts conditionals variables logic and user interaction during Do functions DUMP Dumps memory to a disk file in either load module format or as a pure image ASCII type file A special End of Text marker may be specified for ASCII dumps FILTER Allows all I O to a specified device to be passed through a filtering routine Several filter programs are provided with the LDOS system and examples of creating filtering routines are fully documented in the technical section of the manual FREE Displays the unallocated space and the number of free files for all enabled disk drives or a free space map of an individual drive showing used free and
6. e byte to allow an old end of text marker to be overwritten ATTRIB Sets or alters a file s password and protection status Also allows the disk s name master password and file protection to be changed AUTO Causes a specified command line to be executed on power up or reset Automatic Break key disable may also be specified BOOT Causes the disk in drive 0 to be booted into the system effectively a software reset BUILD Create ASCII or packed Hex format files or append to the end of existing files CLOCK Turns the real time clock display on or off COPY Copies from one file or device to another file or device If copying files dynamic defaults will be used for the filename extension and password Copy also supports files with logical record lengths of other than 256 and allows the correct transfer of passwords protection level and visibility Copy also provides for single drive copies between non svstem disks CREATE pre allocates file space in 1 gran blocks The file space is allocated in the most contiguous manner possible This file space will never shrink but will expand dynamically as needed DATE Sets or displays the current system date which remains intact until power down Any files created or updated will show this date as the date of last modification DEBUG Turns on the regular or extended debugger Debug features include program single stepping memory dump to a printer disk read write mo
7. gnored ROUTE Routes I O from one device to another or from a device to a disk file Route will also create new user specified logical devices RUN Loads a load module format file into memory and begins execution An X parameter is provided to run programs from non system disks in a single drive system SET Sets a new or existing logical device to a driver routine LDOS provides a Keyboard and an RS 232 driver program SPOOL Spools output to a device through memory and optionally through a disk buffer Output will continue even if the computer is performing other jobs SYSTEM allows for changing the configuration of the LDOS system Among the available features are Break key disable Blinking cursor Drive parameters step rate enable disable delay before read software write protect residing System modules and selecting the system drive These features along with most other device routing filtering and setting can be sysgened to disk and will automatically configure the system on power up or reset TIME Sets or displays the current time of the internal real time clock TRACE Displays the CPU s program counter on a real time basis VERIFY Causes read after write verification of all disk writes LDOS provides a complete package of utility programs BACKUP Backup allows for the following commands Backup only those files identified by full or partial filenames or extensions including wildcard characters
8. ing large numbers of files all files created under LDOS carry their date of creation or last modification and are marked with a Mod flag if modified since their last backup Many LDOS commands and utilities can manipulate files by user specified file extension full or partial file name including the use of wildcard characters by Mod flag or by a date or range of dates The LDOS operating system comes with an extensive Job Control Language This is a compiled language that allows the user to input commands and Job Control conditionals and execution statements into a file which will control the computer s job stream Execution can be tied to the setting of the real time clock and can provide both visual and audio alerts Variables and labels may be assigned by the user at run time to select the actual Job Control execution and starting position in the JCL file LDOS comes complete with an RS 232 driver program a terminal utility including disk file send and receive 128 character keyboard Type Ahead a disk modifying Debug utility a program Patch utility a KeyStroke Multiply program for key re definition full printer Spooling to memory and or disk a printer output formatting program a feature to reside SYS Files for super fast operation and much much more An extensive set of Library Commands provide much of the system s versatility APPEND Appends two files together or a device to a file Optionally the first file may be backspaced on
9. locked out granules Either display may be sent to a line printer KILL Deletes a specified file or device from the system LIB Displays the primary and secondary LDOS command libraries LINK Links together input and output to from multiple logical I O devices This allows output to be sent to and input requests to be satisfied from multiple devices by linking these devices together LIST Displays a listing of a file Parameters include line numbering and tab expansion for ASCII files and record number and logical record length for hex formatted output Listings may also be sent to the printer LOAD Loads a load module format file into memory without execution An X parameter allows loading from non system disks in a single drive system MEMORY Display and or set memory protect address HIGHS allows direct modification of a memory address either I or 2 bytes allows a direct jump to a memory address and provides a way to clear memory PURGE Provides for selective deletion of all files on a disk regardless of password protection All files may be acted on or files may be specified by full or partial filename and or extension Mod flag status by date or range of dates and by file type Visible Invisible or System RENAME Renames a disk file using dynamic defaults for filename and extension RESET Resets a specified device to its normal power up driver If the device is non standard all I O to it will be i
10. n is also provided for use with line printers PR A filter for use with line printers It provides for the setting of lines per page physical page size line width line indent on wrap around constant indent of the left margin a one character translate feature tab expansion added linefeed and a hard form feed during pagination The following features will be found in Disk Basic LBASIC Upward compatible with Microsoft Basic Blocked variable length files are supported Single key commands to edit or list the current program line to list LDOS commands may be executed from Basic the next or previous program line or to list the first or last program line Built in string array sort Single character abbreviations for some commands New file modes files may be declared Old or New when opened A single step feature allows program execution to be paused and then single stepped statement by statement New statement Set EOF allows the user to adjust the End Of File marker for Random files and reclaim disk space beyond the new High speed load and save EOF marker Run multiple programs with common variables Programs may also New statement Restore nnnn Restores the Data pointer to a be Run starting at a specified line number specified line number For additional information contact West LOBO DRIVES 354 S Fairview Ave Goleta CA 93117 805 683 1576 Central GALACTIC SOFTWARE 11520 N Port Wash Rd Mequon WI
11. ons using LDOS PATCH Patch allows the alteration of disk files either by direct disk file modification or by memory load address Patches by memory may later be removed with the patch Yank feature The following Device Driver programs add still more features JL This driver will enable the LDOS Joblog feature The JobLog will send a list of all commands and error messages along with a time stamp to a specified file or device Certain other information such as filenames moved during a backup will also be logged KI This driver will enable certain keyboard related features such as Type Ahead Screen Print high speed key repeat and lt CLEAR gt key recognition used with other LDOS features RS232 An RS 232 driver which allows the operator to specify baud rate word length stop bits parity flags to set DTR and RTS and checking of the DSR CD CTS and RI signals either TRUE or FALSE conditions It can also detect simulated Break and Pause keys sent from a remote terminal Several Filter programs are provided KSM A keyboard filter routine that allows the KeyStroke Multiply feature of LDOS to read in predefined files assigning phrases or character strings to be used as keyboard input when the lt CLEAR gt and specified alphabetic key are pressed together MINIDOS A keyboard filter that provides constant access to certain LDOS commands such as Directory Free space Kill a file and Debug An immediate Top of Form functio

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