Operating system app icon

Operating system

Operating system is an educational app for students.

SQSTECH · com.sqstech.operating_system

5.0 (1 rating) 100+ downloads v3.0.0 3 MB Android 4.4+ PEGI 3 · Everyone

Download APK 3 MB All versions

At a glance

Latest version
v3.0.0 (30000)
Updated
Sep 6, 2025 (1 year ago)
APK size
3 MB
Requires
Android 4.4+ (API 19)
CPU support
Any (no native code)
Category
Education (app)
Listed since
Apr 5, 2020 (at least)
Permissions
2
Website
sqstech.org
Developer contact
[email protected]
Privacy
Developer's privacy policy

About this APK

Operating system is an app by SQSTECH in the Education category, listed since at least April 2020. It has no native code, so it runs on any Android processor.

It asks for 2 permissions, none of them sensitive.

What's new in v3.0.0

Learn operating system

Description

From the listing uploaded by “catappult”.

Operating system one of important course of Computer science. Main Topics of App: What is an Operating System Why are Operating Systems Important Views of an Operating System Modern view: Virtual Machine Evolution of Operating Systems Time Sharing Systems Information Protection and Security Operating System Theory Brief OS History Real-Time OS Thank You :)

Security & authenticity

Security rating: Trusted

Signing certificate

  • Certificate issued to “sqstech” The developer's name — though anyone can put any name in a certificate.

Store checks and file details

  • Developer signature verified Sep 6, 2025
  • Antivirus scan passed Sep 6, 2020
  • Signed byC=92, ST=Sindh, L=Larkana, O=sqstech, OU=sqstech, CN=sqstech
  • Signing certificate (SHA-1)55:D7:65:03:05:2E:74:3C:3E:27:09:09:35:C1:F1:3B:D6:81:E7:0B
  • File MD542a9cc14d51524397b1955dcf2b975ca
  • Uploaded by “catappult” Platinum tier · 1,377 followers · uploading since 2018

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (2)

Operating system requests 2 permissions, none of them sensitive.

Required hardware & features

Operating system APK: questions and answers

Can I install this APK over the version I already have?

Only if it is signed with the same certificate as the copy on your phone and isn't an older version. If Android says “App not installed”, the certificates differ; uninstalling your copy first works but deletes its data unless it is backed up.

Is the Operating system APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. After downloading, check that the file's MD5 is 42a9cc14d51524397b1955dcf2b975ca.

Tags

sqstech operating_system education operating system

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