Timex Sinclair Public Domain Library Tape 1002

Developer(s): Tim Ward
Date: 198x
Type: Cassette
Platform(s): TS 1000

Tape 1002 of the Timex Sinclair Public Domain Library. Assembled by Tim Ward from many sources. Contains programs 10051–10121: 36 on side A and 35 on side B. Side A has arithmetic drills, geometry, photography and statistics programs, small games, and machine code routines and demos from Timex/Sinclair user groups, including the Fort Worth, Texas group. Side B mixes Christmas greetings, screen effects and games with a run of business and finance calculators.

Programs on the Tape

Side A

  • 10051 Math Quiz: arithmetic quiz with a choice of difficulty and number of questions (also #57028)
  • 10052 Life Expectancy: estimates life expectancy from lifestyle questions (also #57103)
  • 10053 Average: average of a list of numbers (also #57104)
  • 10054 Mid Range Number: mid-range of a list of numbers (also #57105)
  • 10055 Area -Geometry: areas of seven shapes (also #57106)
  • 10056 Photography: flash f-stop from the guide number and distance (also #57107)
  • 10057 Close-Ups: effective f-number for close-up photography (also #57108 Photo Close-Ups)
  • 10058 Math Flasher -Addition: addition drill (also #57109)
  • 10059 Math Flasher -Subtraction: subtraction drill (also #57110)
  • 10060 Math Flasher -Multiplication: multiplication drill (also #57111)
  • 10061 Math Flasher -Division: division drill (also #57112)
  • 10062 Exam Score Sorting: sorts exam scores into letter grades (also #57113)
  • 10063 Conversions: converts between light-years, kilometres and miles (also #57114 Astronomy Conversions)
  • 10064 Volumes -Geometry: volumes of six solids (also #57115)
  • 10065 Patterns: endless random block-graphic patterns (also #57116)
  • 10066 Space Scape: scrolling starfield (also #57117)
  • 10067 Gunner: shoot at two scrolling rows of letters from a moving cannon (also #57118)
  • 10068 Mini Breakout: small Breakout game (also #57119)
  • 10069 Kwik Plot: correlation coefficient and scatter plot for up to 100 pairs (also #57120)
  • 10070 Breakout: Breakout that moves the ball and bat by POKEing the display file (also #57121)
  • 10071 Dice: ten rolls of dice against the computer (also #57122)
  • 10072 Statistical Measures: descriptive statistics for up to 100 values (also #57123)
  • 10073 Banners: prints large banner letters on the ZX printer (also #57124)
  • 10074 TSUG Demo: user-group demo that runs eight machine code routines (also #57125)
  • 10075 Tape Read/Write Routines: machine code tape read and write routines held in REM lines (also #57126)
  • 10076 Peeker: memory viewer in decimal, hex or characters (also #57127)
  • 10077 Morse Code Sender: sends typed text as Morse code through a machine code routine (also #57128)
  • 10078 Digital Clock: digital clock with large digits drawn from the character ROM (also #57129)
  • 10079 Calendar Maker: monthly calendar for any year from 1752 (also #57130)
  • 10080 TSUG Ft Worth: block-graphic banner for the Fort Worth, Texas users group (also #57131)
  • 10081 TSUG Print: prints the Fort Worth users group banner (also #57132)
  • 10082 TSUG Demo: second copy of the user-group machine code demo (also #57133)
  • 10083 Disassembler: Z80 disassembler in BASIC that prints to the printer (also #57134 DISA-Z Disassembler)
  • 10084 Fast Tape Loading: machine code fast tape loading routine (also #57135)
  • 10085 Program Merge: merges BASIC programs in memory (also #57136)
  • 10086 Random Squares: random hollow squares (also #57137)

Side B

  • 10087 Word Wizard -RG: five-page text editor with save and print (also #57138 Word Wizard)
  • 10088 Sprite Editor: 8 × 8 grid editor for designing a sprite (also #57139)
  • 10089 Merry Christmas message: MERRY CHRISTMAS greeting driven by machine code (also #57140)
  • 10090 Car: arcade driving game (also #57141)
  • 10091 Merry Christmas / Happy New Year: scrolling Christmas and New Year greeting (also #57142)
  • 10092 Merry Christmas message: scrolling MERRY CHRISTMAS message (also #57143)
  • 10093 Screen routines: four machine code screen effects (also #57144)
  • 10094 Fire Works Black on white: flashing fireworks effect, black on white (also #57145)
  • 10095 Fire Works White on black: animated fireworks, white on black (also #57146)
  • 10096 3D Bar Graph: bar chart of entered values (also #57147)
  • 10097 Screen Scrolling Routine: machine code screen scrolling routines (also #57148)
  • 10098 Space background: starfield scrolled in four directions by machine code (also #57149)
  • 10099 Goblin -RG: collect coins and avoid goblins (also #57150 Goblin)
  • 10100 Brick Buster: Breakout-style brick game (also #57151)
  • 10101 Four Arithmetic Tables: addition, subtraction, multiplication and division tables up to a chosen number (also #57152)
  • 10102 Math Program: simple addition test (also #57153)
  • 10103 ZX Typer: types text in large block-graphic letters (also #57154)
  • 10104 Merry Christmas message -RG: animated Christmas tree and scrolling greeting (also #57155 Merry Christmas Message)
  • 10105 Peeker: scrolling hex memory dump (also #57156)
  • 10106 Temp Conversion Problem 1: temperature conversion exercise (also #57157)
  • 10107 Student Grade Average: average of five grades (also #57158)
  • 10108 Temp Conversion Problem 2: second temperature conversion exercise (also #57159)
  • 10109 Address: address book of ten entries (also #57160)
  • 10110 Space Shuttle: steer a shuttle by POKEing the display file (also #57161)
  • 10111 Effective Interest: effective annual interest rate on a loan (also #57162)
  • 10112 Compound Interest: compound interest daily, monthly, quarterly and annually (also #57163)
  • 10113 Inrate // Credit Rating: suggests a loan interest rate from eight scored criteria (also #57164 Credit Rating Interest Rate)
  • 10114 Break Even Analysis: break-even and profit calculator (also #57165)
  • 10115 Variable Budget: flexible budget calculator for cost accounting (also #57166)
  • 10116 Net Pay: gross pay needed for a chosen net pay (also #57167)
  • 10117 Markup Calculation: retail prices from a cost-based or sales-based markup (also #57168)
  • 10118 Financial Ratios: financial ratios from up to 23 accounting figures (also #57169)
  • 10119 Mintax // Incorporate: compares after-tax income as a corporation and as a sole proprietor (also #57170)
  • 10120 Depreciation and Income Taxes: straight-line and sum-of-years-digits depreciation with income tax (also #57171)
  • 10121 InvTax: compares FIFO and LIFO inventory costing and tax (also #57172)

The download has a TZX file, a plain-text listing (.b81) and screenshots for each program, in tape order by side, with the tape’s contents list (TS PDL 1002.txt) and photos of the cassette and its label. Program names follow that list; where it says “Unknown”, the name of the program’s own page is used.

Content

3D Bar Graph

Program

Enter your data values and watch this program render a labelled bar chart complete with diagonal tops, axis lines, and centred title — all using PLOT and UNPLOT.

Address

Program

A compact address-book utility that routes between Add, Change, Review, and Save modes using a single calculated GOTO driven by ASCII arithmetic.

Area - Geometry

Program

A compact geometry tool that calculates areas for seven different shapes, sharing code paths cleverly and using a π/4 approximation for the ellipse formula.

Astronomy Conversions

Program

A handy three-way astronomical converter handles light-years, kilometres, and miles using direct keypress input and some interesting branching logic worth examining closely.

Average

Program

A compact averages calculator that accepts any list of numbers, stops on zero, and instantly displays the arithmetic mean before resetting for the next calculation.

Banners

Program

Type any message and watch this BASIC program transform it into giant banner letters printed column-by-column using raw font data peeked straight from ROM.

Break Even Analysis

Program

A vintage financial tool that calculates break-even sales targets or net profit estimates using fixed costs, variable cost rates, and contribution margin formulas.

Breakout

Program

A brick-busting Breakout game that directly POKEs the display file for smooth bat and ball movement, with block-graphic walls and a persistent high score.

Brick Buster

Program

A breakout-style brick-busting arcade game driven entirely by an embedded machine-code engine — complete with configurable speed, serve control, and persistent high-score tracking.

Calendar Maker

Program

A Gregorian calendar program that uses a clever packed month-name lookup string and a Zeller-style formula to calculate and display any month from 1752 onward.

Car

Program

A block-graphics game where you steer a car left and right using keys 8 and 5, built with clever PRINT AT and USR system-variable tricks.

Compound Interest

Program

Enter a principal, rate, and term to instantly compare daily, monthly, quarterly, and annual compound interest results in a single formatted table row.

Credit Rating Interest Rate

Program

Loan assessment tool that scores eight financial factors and returns a recommended interest rate — simple branching logic turned into a working credit calculator.

Depreciation and Income Taxes

Program

Compare straight-line and sum-of-years-digits depreciation year by year, complete with a five-bracket income tax calculation straight from vintage US tax law.

Dice

Program

Press ENTER to freeze a spinning die and outscore the computer across 10 rounds in this animated text-mode dice challenge.

Digital Clock

Program

A self-contained digital clock that reads digit shapes straight from ROM and ticks through 24 hours using a single PAUSE-based timing loop.

DISA-Z Disassembler

Program

A full Z80 disassembler in BASIC that decodes every prefix, resolves relative jump targets, and prints annotated mnemonics — with a single flag to switch between two character sets.

Effective Interest

Program

Loan calculator that uses a classic actuarial formula to instantly reveal the true effective interest rate hiding inside any installment payment plan.

Exam Score Sorting

Program

A classroom-ready score analyser that tallies letter grades and tracks the high and low marks from a stream of entered exam results.

Fast Tape Loading

Program

A self-installing machine code loader hides inside a REM statement, rewrites RAM, then wipes itself — leaving only the code it delivered behind.

Financial Ratios

Program

A complete 18-ratio financial analysis tool that walks you through 23 accounting inputs and prints a neatly aligned balance-sheet and profitability report.

Fire Works Black on White

Program

A relentless display-file painter that floods three screen positions and their neighbours with cycling character codes, looping forever to animate the result.

Fire Works White on Black

Program

Watch randomly placed explosions bloom across a starfield in this compact BASIC animation using expanding eight-directional burst rings and block graphics.

Four Arithmetic Tables

Program

Enter a number N and this program prints every multiplication, division, addition, and subtraction combination from 1 to N in a neat side-by-side layout.

Goblin

Program

Navigate a character through a maze of hidden goblins, collecting 25 coins without getting caught — high scores survive between games.

Gunner

Program

A scrolling-gallery shooter where alphabetic targets race across the screen and a mystery symbol spells game over if you let it escape your cannon's sight.

InvTax

Program

This accounting program calculates FIFO vs. LIFO inventory costs and progressive income taxes across three years, revealing exactly how your costing method affects the tax bill.

Kwik Plot

Program

A statistics tool that calculates Pearson's correlation coefficient from your data and then plots a scatter graph—with overplot counting—right on your screen.

Life Expectancy

Program

Answer a handful of lifestyle questions and this BASIC program calculates your estimated age at death — separately for men and women.

Markup Calculation

Program

A handy retail pricing tool that calculates selling prices using either cost-based or sales-based markup — two different formulas with a single percentage input.

Math Flasher: Addition

Program

A never-ending mental arithmetic drill that flashes inverse-video feedback and keeps score only in your head — how long can you keep up?

Math Flasher: Division

Program

A drill program that quizzes you on exact integer division, rejecting any problem that would produce a remainder before it ever appears on screen.

Math Flasher: Multiplication

Program

A rapid-fire multiplication quiz that flashes inverse-video "CORRECT" or "WRONG" feedback and loops endlessly through random single-digit problems.

Math Flasher: Subtraction

Program

A no-frills subtraction quiz generates endless random problems, rejects negative results, and flashes your answer back in inverse video — simple drill software at its most direct.

Math Program

Program

A personalised addition-quiz program with retry loops — but a missing line number means correct answers never actually get praised.

Math Quiz

Program

A customisable arithmetic quiz that encodes its operators as characters and evaluates answers with VAL — with difficulty scaling and a built-in modification guide hidden in REM lines.

Merry Christmas / Happy New Year

Program

A festive greeting program scrolls Christmas and New Year messages up and down the screen, driven by a machine code routine hidden inside a REM statement.

Merry Christmas Message

Program

A festive Christmas card program combines scrolling inverse-video text, block-graphic decorations, and embedded machine code routines for smooth animated effects.

Merry Christmas Message

Program

A festive "MERRY CHRISTMAS" greeting driven by a self-modifying Z80 machine code routine tucked inside a REM statement — see how it works.

Merry Christmas Message

Program

A festive "MERRY CHRISTMAS" message scrolls and bounces across the screen in inverse video, using clever substring tricks to create a smooth corner-wrap effect.

Mid Range Number

Program

Enter a series of numbers and this program instantly finds the mid-range — the exact midpoint between the smallest and largest values you've typed in.

Mini Breakout

Program

A compact Breakout clone uses PEEK-based display-file collision detection and inverse-video graphics to deliver brick-smashing action in pure BASIC.

Mintax // Incorporate

Program

A tax-planning program that calculates your true take-home pay under two business structures, using real 1980s U.S. tax bracket tables in pure BASIC.

Morse Code Sender

Program

Type any text and this program encodes and transmits it as Morse code in real time, driven by a compact machine code routine hidden inside a REM statement.

Net Pay

Program

Enter your desired take-home pay, tax rate, and deductions to instantly calculate the exact gross salary you need to earn.

Patterns

Program

A hypnotic screen-filling pattern generator that randomly mixes inverse and normal block graphics, refreshing every two seconds in an endless loop.

Peeker

Program

This memory examination tool lets you peek at any address range and display the bytes in decimal, hexadecimal, or ASCII — with optional printer output.

Peeker

Program

A continuous hex memory-dump tool that converts raw addresses and byte values into readable hexadecimal, pausing on a keypress and scrolling indefinitely.

Photo Close-Ups

Program

A handy close-up photography calculator that derives your true working f/number from lens focal length and extension distance — essential for accurate macro exposure.

Photography

Program

Enter your flash guide number and subject distance to instantly calculate the correct f-stop aperture — a handy darkroom companion built in BASIC.

Program Merge

Program

A machine code utility hidden inside a REM statement that can merge two or more BASIC programs together, working with any memory size configuration.

Random Squares

Program

A restless block-graphics doodler that scatters hollow squares randomly across the screen until you tell it to stop — deceptively simple, visually hypnotic.

Screen Routines

Program

Four dazzling screen effects—border drawing, line scrolling, screen fill, and inversion—all driven by machine code hidden inside a single REM statement.

Screen Scrolling Routine

Program

Eight-directional movement powered by hand-assembled Z80 machine code hidden inside a REM statement — discover how four tight routines combine to cover every direction.

Space Background

Program

A four-directional scrolling starfield demo uses hand-assembled Z80 machine code hidden in a REM statement to blast the screen left, right, up, or down at full speed.

Space Scape

Program

A minimalist scrolling starfield demo uses a clever string-fill trick and random character placement to simulate the illusion of flying through space.

Space Shuttle

Program

A keyboard-controlled shuttle weaves through a procedurally generated obstacle course — all driven by direct display-file manipulation instead of PRINT statements.

Sprite Editor

Program

A compact 8×8 grid editor lets you paint and erase cells with keyboard controls, storing the grid state in a two-dimensional string array.

Statistical Measures

Program

A complete descriptive statistics suite — mean, median, mode, variance, and more — with interactive data entry and on-the-fly correction before crunching the numbers.

Student Grade Average

Program

A straightforward classroom tool that collects five test scores, computes the average, and prints a formatted summary report — then loops automatically for the next student.

Tape Read/Write Routines

Program

Two Z80 machine code routines tucked inside REM lines deliver custom tape read and write operations, triggered directly from BASIC with a single RAND USR call.

Temp Conversion Problem 1

Program

A menu-driven temperature converter that counts each conversion as a numbered "case" — with a subtle arithmetic trick hiding in the formula.

Temp Conversion Problem 2

Program

A two-way temperature converter with a polite but strict menu that tracks your mistakes and cuts you off after too many wrong inputs.

TSUG Demo

Program

A users' group banner demo cycles through eight Z80 machine-code screen effects, each triggered 32 times before clearing and moving to the next routine.

TSUG Demo

Program

Eight Z80 machine code screen-effect routines hidden inside a REM statement power this endlessly looping banner display for a user group meeting demo.

TSUG Ft Worth

Program

A single PRINT statement constructs an entire pixel-art club banner using block graphics — see how a user group immortalised itself in BASIC.

TSUG Print

Program

A loop-driven LPRINT banner program uses block graphics to render a users group logo in large pixel text, printing it 50 times on a thermal printer.

Variable Budget

Program

A cost-accounting flexible budget tool that projects factory expenses across four capacity levels — enter your figures once and get a formatted four-column report instantly.

Volumes: Geometry

Program

A handy geometry tool that calculates volumes for six different 3D shapes—cone, pyramid, prism, cube, cylinder, and sphere—with a clean input loop.

Word Wizard

Program

A full-featured five-page text editor with cut, paste, insert, delete, and printer support — built entirely in BASIC with its own cursor and buffer system.

ZX Typer

Program

Type any text and watch it rendered tall across the screen in chunky block graphics — each letter built from three rows of mosaic characters.

Image Gallery

Note: Type-in program listings on this website use ZMAKEBAS notation for graphics characters.

Tags

Downloadable TS 1000 Collection

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