OSAlgoCalculator — OS Algorithm Visualizer

A desktop application to visualize and solve core Operating System algorithms. Built with Java and JavaFX.

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📥 Downloads

Head to the Releases page to download the latest version:

File	Platform	Description
osalgocalculator_1.0_amd64.deb	Ubuntu / Debian	Native installer ✅ Recommended
OSAlgoCalculator-linux-portable.zip	Any Linux	No installation needed

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Features

Category	Algorithms
Process Scheduling	FCFS, Priority (Pre-emptive & Non Pre-emptive), SJF (Pre-emptive & Non Pre-emptive), Round Robin
Disk Scheduling	FCFS, SSTF, SCAN, C-SCAN, LOOK, C-LOOK
Memory Allocation	First Fit, Best Fit, Worst Fit
Page Replacement	FIFO, LRU, Optimal

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How to Install

Option 1 — Debian/Ubuntu Package (.deb) ✅ Recommended

For Ubuntu, Debian, Linux Mint and any Debian-based distro:

sudo dpkg -i osalgocalculator_1.0_amd64.deb

Once installed, search for "OSAlgoCalculator" in your application launcher and click to run.
No Java or JavaFX installation needed — everything is bundled.

To uninstall:

sudo dpkg -r osalgocalculator

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Option 2 — Portable ZIP (Any Linux)

For any Linux distribution. No installation required.

1. Extract the zip:

   unzip OSAlgoCalculator-linux-portable.zip

2. Run the application:

   ./OSAlgoCalculator/bin/OSAlgoCalculator

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How to Use

Input Format

All number inputs use space-separated values.
Example: 0 1 2 3 4 — each number followed by a space.

Screen	Field	Example Input
Process Scheduling	Arrival Time	0 1 2 3 4
Process Scheduling	Burst Time	5 3 8 2 6
Process Scheduling	Priority	2 1 4 3 5
Process Scheduling	Quantum Time (Round Robin only)	2
Disk Scheduling	Initial Head Position	50
Disk Scheduling	Request Queue	98 183 37 122 14 124 65 67
Memory Allocation	Memory Segments	100 500 200 300 600
Memory Allocation	Process Size	212 417 112 426
Page Replacement	Number of Frames	3
Page Replacement	Page Reference String	7 0 1 2 0 3 0 4 2 3

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System Requirements

• OS: Linux (64-bit)
• RAM: 256 MB minimum
• Java: Not required — bundled with the app

Note: The .deb and portable ZIP are Linux-only (amd64). Windows and macOS builds require separate packaging steps.

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Building from Source

Requirements: JDK 17+, JavaFX SDK 17+, IntelliJ IDEA

1. Clone the repository
2. Open in IntelliJ IDEA
3. Configure JavaFX SDK in File → Project Structure → Libraries
4. Set SDK path to your local JavaFX installation
5. Run Application.Main

To rebuild the distributable packages:

# 1. Compile and create the fat JAR (intermediate build artifact)
cd out/production/AlgorithmOS
jar cfm AlgorithmOS.jar MANIFEST.MF .

# 2. Copy JAR to jpackage input
cp AlgorithmOS.jar ../../../dist/jpackage-input/

# 3. Build .deb installer
jpackage --type deb --name OSAlgoCalculator \
  --input dist/jpackage-input --main-jar AlgorithmOS.jar \
  --main-class Application.Main --dest dist/

# 4. Build portable ZIP (app-image)
jpackage --type app-image --name OSAlgoCalculator \
  --input dist/jpackage-input --main-jar AlgorithmOS.jar \
  --main-class Application.Main --dest dist/app-image-out/
cd dist/app-image-out && zip -r ../OSAlgoCalculator-linux-portable.zip OSAlgoCalculator/

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License & Copyright

© 2026 BrainFreezed@amir — All rights reserved.

This software is provided for educational purposes.
Unauthorized redistribution or commercial use is prohibited
without explicit written permission from the author.