I have scanned the files for viruses before posting them, and
believe them to be clean. As with anything you pull off of the
'Net, please scan them before you run them.
DATE_DIF allows people to compute the difference in days between two dates (ranging between January 1, 1900 and December 31, 2099 -- the same range of dates as used by Lotus 1-2-3 v2.3).
,
DATES.ZIP
(180K .ZIP archive, expands to two .EXE programs of about 200K
apiece).
BIG_HEX.ZIP
(103K .ZIP archive, expands to one .EXE program of about 254K).
It also contains 8 speed buttons to quickly set the scroll bars to any combination of the primary colors. Whichever mix is selected, you view the composite color in a small window (clicking on this window brings up the "about box").
As you blend colors, you see a text representation of the current color in the form required by the <BODY> section of an HTML web page. Clicking on the "Copy to Clipboard" button copies the text representation into the clipboard, which can then be copied into a text editor where an HTML web page is being written.
HTML_RGB.ZIP
(100K .ZIP archive, expands to an .EXE program of about 250K).
Since I wrote this program I have gone on to working with HTML forms and CGI scripts for automating the process of a student answering a quiz. This program DOES NOT DO THAT. It is a simple tool for creating HTML web page quizzes. The students must then manually compose and email their replies to the central site.
QuizWriter.zip
(186K .ZIP archive, expands to an .EXE program of about 417K).
Version 1.5 improves the string search and replace facility (internal clean-up, as well as adding the option to control case sensitivity in searching), and adds a "Go To Bottom" function (in addition to the already existing "Go To Top").
Version 1.75 contains a number of additions and corrections. UNDO is implemented, a Save As HTML function and a foreign language character entry key pad are now available, and a bunch of text tools dealing with case, tabs, blanks, diacritical marks, line breaks, etc. have been added.
Version 1.9 adds several more tools (including sorting selected lines and removing blank lines), and fixes a couple of nagging bugs (including removing some odd behavior involving the clipboard and empty text selections), and finally implements printing in some coherent (working) form.
BigNotepad.zip
(218K .ZIP archive, expands to an .EXE program of about 427K).
IF_Writer.zip
(141K .ZIP archive, expands to an .EXE program of about 331K).
Quick_HTML.zip
(180K .ZIP archive, expands to an .EXE program of about 409K).
Years.zip
(150K .ZIP archive, expands to an .EXE program of about 337K).
Still functional, but incomplete and somewhat out-of-date.
NewYears.zip
(215K .ZIP archive, expands to an .EXE program of about 427K).
ColorBlend.zip
(150K .ZIP archive, expands to an .EXE program of about 281K).
ImageMap.zip
(275K .ZIP archive, expands to an .EXE program of about 495K).
BrowserSafe.zip
(142K .ZIP archive, expands to an .EXE program of about 288K).
TransparentGIF.zip
(156K .ZIP archive, expands to an .EXE program of about 304K).
Twin_Color.zip
(139K .ZIP archive, expands to an .EXE program of about 279K).
Push_Buttons.zip
(219K .ZIP archive, expands to an .EXE program of about 438K).
View.zip (version 1.0)
(245K .ZIP archive, expands to an .EXE program of about 478K).
View_V2_0.zip (version 2.0)
(248K .ZIP archive, expands to an .EXE program of about 483K).
View_V2_1.zip (version 2.1)
(250K .ZIP archive, expands to an .EXE program of about 492K).
View_V2_2.zip (version 2.2)
(252K .ZIP archive, expands to an .EXE program of about 497K).
View_V2_32.zip (version 2.32)
(252K .ZIP archive, expands to an .EXE program of about 499K).
ColorCube.zip (version 1.0)
(160K .ZIP archive, expands to an .EXE program of about 313K).
ColorCube.zip (version 1.5)
(161K .ZIP archive, expands to an .EXE program of about 315K).
LF_After.zip
(143K .ZIP archive, expands to an .EXE program of about 276K).
Snowflake.zip
(154K .ZIP archive, expands to an .EXE program of about 299K).
NOTE: If you still own any of the old B&W Connectix QuickCams that you don't know what to do with, I am interested in acquiring them for a reasonable fee or trade.
QuickCam.zip
(64K .ZIP archive, containing three sub-archives that expand to four .EXE programs,
two .PAS files, and documentation in .DOC and .RTF format,
totalling about 112K).
This program was written in Borland Delphi 3.0, and runs under Windows 95. It does NOT run under Windows 3.1 at all. It was written to allow users to explore Bezier curves, and design pretty shapes (to be saved as .BMP files) using them. Curves may be entered, edited, or deleted, and the resulting configuration saved to a file for later modification.
Version 1.1 actually adds the save-to-.BMP option and cleans up some program behaviour. Program now allows 1000 curves, instead of previous limit of 100.
Version 2.0 is a major update which includes the ability to draw and manage Quadratic Splines (two endpoints and ONE control point), simple Line Segments (two endpoints), and Points (one endpoint), as well as normal Bezier Curves (two endpoints and two control points). For each curve, program saves corresponding number of points (one, two, three, or four) to the .BEZ file.
Bezier.zip
(168K .ZIP archive, expands to an .EXE program of about 333K).
Bezier_V1_1.zip (version 1.1)
(171K .ZIP archive, expands to an .EXE program of about 341K).
Bezier_V2_0.zip (version 2.0)
(172K .ZIP archive, expands to an .EXE program of about 348K).
This program was written in Borland Delphi 4.0, and runs under Windows 95. It does NOT run under Windows 3.1 at all. It allows users to generate mazes as small as 3x3 and as large as 100x75, or any size in between. The mazes are generated as graphics on screen, which may be printed, copied to the clipboard, or saved to .BMP files. The mazes may be scaled to any size, with any desired margin, and with selectable line and background colors. Solutions for each maze may also be shown; the solutions are erased when colors or scales are changed, but may be redrawn at any time. Mazes are continuous (no islands) so that the left-hand rule or right-hand rules may be applied to always find the solutions.
Version 1.1 includes the default behavior of printing a maze automatically scaled up to fit the printer paper. This may be turned off and the maze printed at a user selected scale, as in the earlier version.
Mazes_Distribution_V1_0.zip
(208K .ZIP archive, expands to an .EXE program of about 407K).
Mazes_Distribution_V1_1.zip
(210K .ZIP archive, expands to an .EXE program of about 412K).
This program was written in Borland Delphi 4.0, and runs under Windows 95. It does NOT run under Windows 3.1 at all. It allows users to view text files (*.TXT) as distinct spots of color. This is a file viewer only, not a text editor. Source files must be prepared ahead of time in a program such as Windows Notepad.
This program was requested by a former student of mine studying synesthesia, or a condition where individual characters appear to people as distinct colors. In this program, the user may configure all of the uppercase and lowercase letters individually to be any valid 24-bit color (16,777,216 possibilities), and these settings are automatically saved upon exiting the program to the file SPOTTEXT.INI, in the same directory as the program. Starting the program again will reload these color settings from the .INI file.
The user may choose to view the text as normal characters (black Courier text on a white background), or as colored rectangles, with or without a 1-pixel black border. The user can select the point size of the text, which controls the size of the colored rectangles. Non-letter characters always appear on screen normally, as characters, so any arbitrary text file will appear as a mixture of colored blocks and special characters. The user may choose to see uppercase letters as large blocks and lowercase letters as small blocks, or as all large blocks (all uppercase). These settings are also saved to the .INI file.
The visible graphic image on screen may be copied to the clipboard or saved to a .BMP file for later editing in Paint, or the entire file may be printed (preferably to a color printer).
SpotText_Distribution_V1_0.zip
(215K .ZIP archive, expands to an .EXE program of about 420K and a 2K .INI file).
This program was written in Borland Delphi 4.0, and runs under Windows 95. It does NOT run under Windows 3.1 at all. It displays the operating speed of the computer's CPU in MHz (integer only). Clicking on the result label recomputes the speed, which takes one full second to perform. It may be necessary to compute the speed several times to get the correct speed, as other running programs may influence the sampling here. This process depends on a Pentium-specific instruction, which records the number of clock-ticks since power-on. If this program is run on a 486 (or earlier!) processor, the display will show "ERROR". Clicking anywhere else on the form besides the label will bring up the About box.
MHz_Distribution.zip
(176K .ZIP archive, expands to an .EXE program of about 333K).
This program was written entirely in 80x88 assembly language, and runs under DOS. It also runs as a DOS process in every version of Windows from Windows 3.1 up through and including Windows XP. It was developed in Turbo Assembler version 2.0 on a Windows XP laptop, and has been tested on 286, 386, 486, Pentium, Pentium II, Pentium III, Pentium IV, Pentium Pro, and Athlon processors. It should also work OK on old 8088 processors, but I haven't had a chance to test it yet. The minimum hardware requirement is an MCGA or VGA video card, capable of "Mode-13" (320x200, 256 color) graphics. The .EXE file is 139K, but most of that space consists of strings, data structures, and video buffer space; there is only about 14K of executable code.
The program is a "Programmer's Spreadsheet" with 26 columns (A through Z) and 99 rows (1 through 99). Each cell is a 16-bit integer, and supports normal arithmetic operations for signed integers (-32768..+32767) or for unsigned integers (0..65535). It also supports bitwise operations, including AND, OR, XOR, SHL (shift-left), SHR (shift-right), ROL (rotate-left) and ROR (rotate-right). Extended operators include both signed and unsigned division, and the result of a 16-bit by 16-bit multiplication can be the upper, lower, or middle 16-bits of the 32-bit product. Formulae are created and entered in a manner similar to that of Microsoft Excel. A small library of predefined functions is also part of this package, including functions such as SUM, AVERAGE, RANDOM, GCD, TIME, DATE, etc.
This program was designed to be used in an introductory computer science class on assembly language or data representation, but can also be used by people to test algorithms destined for microcontrollers (or modules such as the BASIC Stamp from Parallax).
The current version is a pre-release alpha version, which does not yet support printing functions (although you can capture the screen to a .BMP file) or proper handling of relative vs. absolute addressing in copy-paste operations.
Z99_Distribution_V0_1.zip
(17K .ZIP archive, expands to an .EXE program of about 139K).
Full documentation in .PDF format to follow shortly.
This program was written in Borland Delphi 3.0, and runs under Windows 95 or later. It does NOT run under Windows 3.1 at all. The program allows users to enter arbitrary decimal numbers with fractions, such as 17.1875, then converts that number to the closest possible Single-Precision (32-bit) Floating-Point approximation. The result is shown in hexadecimal, as a binary floating point number (sign bit / biased exponent / mantissa), and in decimal. The decimal value displayed may not be the same as the desired number entered by the user, illustrating the inherent problems of representing arbitrary real numbers in a fixed number of bits.
SinglePrecision_Distribution_V1_0.zip
(133K .ZIP archive, expands to an .EXE program of about 255K).
This program was written in Borland Delphi 4.0, and runs under Windows 95 or later. It does NOT run under Windows 3.1 at all. The program is a visual demonstration of the differences between an O(N) Linear Search, an O(Log2(N)) Binary Search, and a Binary Search with an Index. Sample text files are included with the distribution package. Educators will find this program useful for driving home the qualitative as well as the quantitative differences between the three searching techniques.
SearchAndSort_Distribution_V1_0.zip
(203K .ZIP archive, expands to an .EXE program of about 392K, plus two tiny data files).
This program was written in Borland Delphi 5.0, and runs under Windows 95 or later. It does NOT run under Windows 3.1 at all. This program allows users to fetch files from the World Wide Web without needing a traditional Web browser. The user types in a complete address from the http:// up to the name of the file (usually an .htm, .html, .jpg, or .gif file), and the program will fetch it from the Web, placing the file into a folder called C:\CLIPBOARDS\WEB (created if not already present; this folder is used by some of my other software). The status of the retrieval is shown in a memo box on the main screen. All that is needed for the program to run is a live connection to the Internet, and for the TCP/IP protocol to be installed on the user's computer.
WebFileFetcher_Distribution_V1_0.zip
(201K .ZIP archive, expands to an .EXE program of about 388K).
This program was written in Borland Delphi 5.0, and runs under Windows 95 or later. It does NOT run under Windows 3.1 at all. It is a simple, non-resizeable window that represents a 12-hour clock in binary-coded-decimal (BCD). The window always stays on top of other windows. Clicking on any on the binary digits brings up the About dialog box.
BinaryClock_Distribution_V1_0.zip
(208K .ZIP archive, expands to an .EXE program of about 353K).
This program was written in Borland Delphi 5.0, and runs under Windows 95 or later. It does NOT run under Windows 3.1 at all. It is a program that allows a user to watch multiple Web Cams (or other regularly updated .GIF, .JPG, or .BMP files on the Web) simultaneously. Install package contains a list of my favorite cams in Oregon, Wyoming, and Massachusetts, as well as a couple of on-line weather maps.
Version 1.1 adds a couple of functions, and fixes some minor timing bugs, but has not
been tested on a wide variety of platforms.
Version 2.0 contains a rewrite of the core web-fetch code, and cleans
up several behaviors, but no changes have been made to the interface.
Now (as of version 1.2, never released) the program can be configured
to run from a flash drive by editing the CamWatcher.PreINI file.
CamWatcher_Distribution_V1_0.zip
(387K .ZIP archive, expands to an .EXE program of about 821K).
CamWatcher_Distribution_V1_1.zip
(388K .ZIP archive, expands to an .EXE program of about 822K).
CamWatcher_Distribution_V2_0.zip
(396K .ZIP archive, expands to an .EXE program of about 839K).
This program was written in Borland Delphi 5.0, and runs under Windows 95 or later. It does NOT run under Windows 3.1 at all. It is a program that allows a user to explore the creation and graphing of any polynomial up to cubics. The graphs may be scaled up or down in size, saved to .BMP or .GIF files, printed, or configured to show major or minor grid lines, component curves, the equation itself drawn on screen, etc. The precision of the coefficients may range between 0 and 10 decimal places.
GraphPolynomials_Distribution_V1_0.zip
(336K .ZIP archive, expands to an .EXE program of about 715K).
These programs were written in Borland Delphi 5.0, and run under Windows 95 or later. They do NOT run under Windows 3.1 at all. The .ZIP archive contains a suite of programs that allow a user to create and edit standard Windows icons. The distribution package contains 12 related programs, each one tuned to a specific icon size and color depth (16x16, 32x32, 48x48, and 64x64 icons, with 1, 4, or 8 bits per color). Use whichever program edits icons of the appropriate size. For example, standard Windows XP icons are 32x32 with 4 bits per pixel (16 color). Also the "favicon.ico" used in Web pages is 16x16 with 4 bits per pixel. Icon transparency is fully supported. Both icons and the larger gridded editing area may be saved as .GIF or .BMP files.
EditIcon_Distribution_V1_0.zip
(4009K .ZIP archive, expands to 12 related .EXE programs of about 8Meg total).
This program was written in Borland Delphi 5.0, and runs under Windows 95 or later. It does NOT run under Windows 3.1 at all. It is a program that allows a user to create rectangular buttons for use in Web pages. The buttons may have bevels, captions, URL links, may be adjacent or separated by a gap, and may be surrounded by a border and margins. Buttons define regions in client-side image maps. When saving a design, the button definitions are saved to a .INI file for later editing, the graphic image of the buttons is saved to a .GIF file, and the HTML of the client-side image map (either a fragment or a complete Web page) is saved to a .HTML file. Users have complete control over button widths, heights, fonts, bevels, colors, etc. As each change is made, the graphic of the button panel is updated on screen.
MakeButtons_Distribution_V2_0.zip
(389K .ZIP archive, expands to an .EXE program of about 834K).
This program was written in Borland Delphi 5.0, and runs under Windows 95 or later. It does NOT run under Windows 3.1 at all. It is a program that allows a user to compute the resistance value of a dropping resistor for an LED (Light Emitting Diode), with an optional NPN driver transistor. The user specifies the source voltage, the voltage drop across the LED (varies with LED type and color, but is usually between 1.6 and 3.2 volts), the voltage drop across the driver transistor (set to zero to eliminate the transistor), and the desired current through the LED (usually 20ma). The program shows a diagram of the circuit, along with the required resistance, the voltage drop across the resistor, and the power dissipated by the resistor. The text of the solution can be copied to the clipboard, and the annotated graphic of the circuit with the component values may be either copied to the clipboard or printed directly. Illegal values (e.g., voltage drop across the LED greater than the source voltage) are shown as an error. The various input values may be entered on-screen through floating-point spin-edits, or through the menus with typical preset values. Here is a typical example of the output.
Version 2.1 contains new code to save the text of the solution to a .TXT
file, as well as print the text of the solution. It also contains the
code to save the annotated image of the solution directly to either a
.BMP or a .GIF file. Shortcut ^P now prints the text
of the solution by default, instead of the image. At this point both
the text of the solution and the annotated graphic can be directly copied to
the clipboard, printed, and saved to file.
LED_Driver_Distribution_V2_0.zip
(278K .ZIP archive, expands to an .EXE program of about 738K).
LED_Driver_Distribution_V2_1.zip
(339K .ZIP archive, expands to an .EXE program of about 850K).
This program was written in Borland Delphi 5.0, and runs under Windows 95 or later. It does NOT run under Windows 3.1 at all. It is a simple spreadsheet with 26 columns (A-Z) and 999 rows. The archive contains two .EXE files, which are functionally identical, but one uses 64-bit double-precision floating-point numbers internally, and the other uses 64-bit fixed-point numbers (32 bits of integer, 32 bits of fraction). The fixed-point version is primarily to instruct students in issues involving round-off errors, which are more readily exposed here than in the floating-point version. For most "real" problems users would want to use the floating-point version. Numbers may be displayed in different bases and formats (base 2, base 16, as dates or times, etc.). Z99 has infinite UNDO capability. The menus contain links to the common Windows Accessories (Notepad, Paint, etc.), plus a number of useful pop-ups are built in to the program under the Help menu entry.
This program was written in Borland Delphi 5.0, and runs under Windows 95 or later. It does NOT run under Windows 3.1 at all. It is a simple program to generate the Sierpinski Gasket using an iterative technique called the "Chaos Game". Drag the three corner points around screen, choose black-and-white or color for the points, a background color of black, white, or gray, and whether or not to show the corners. When the RUN button is clicked, the gasket starts being generated. The corners may be dragged around while running. Once the image has been generated, it may be copied to the clipboard or saved to a .BMP file.