OPERATING SYSTEM NOTES

OPERATING SYSTEM NOTES OFFLINE

Tech Zone App's · com.techzone.higher.os

Not rated yet 10K+ downloads v1.4.0.8 9 MB Android 5.0+ PEGI 3 · Everyone

Download APK 9 MB All versions

Same certificate as the other version checked Details

At a glance

Latest version: v1.4.0.8 (12)
Updated: Sep 24, 2024 (2 years ago)
APK size: 9 MB
Requires: Android 5.0+ (API 21)
CPU support: Any (no native code)
Category: Education (app)
Listed since: Feb 19, 2021 (at least)
Permissions: 9
Website: azadpri.com
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

OPERATING SYSTEM NOTES is an app by Tech Zone App's in the Education category, listed since at least February 2021. It has no native code, so it runs on any Android processor.

Since version 1.4.0.6, the APK grew from 5.1 MB to 9 MB and the minimum Android version rose from 4.4 to 5.0. It asks for 9 permissions, none of them sensitive. Compared with version 1.4.0.6, it adds 3 new permissions (“Access adservices ad id”, “Access adservices attribution” and “Access adservices topics”) and drops 1 (“Run at startup”). The app can read the advertising ID that ad and analytics services use.

What's new in v1.4.0.8

* New Release.

Description

From the listing uploaded by “appupdater”.

The operating system (OS) is the most important program that runs on a computer. Every general-purpose computer must have an operating system to run other programs and applications. This Application will teach you about Operating System in detail with it's Concept and you can easily understand these concept. The contents of this app that you will learn are followings: 1. Operating System INTRODUCTION 2. Operating System EVOLUTION 3. Operating System TYPES 4. Operating System PROCESS AND MULTI THREADING 5. Operating System PROCESS SCHEDULING 6. Operating System CPU SCHEDULING 7. Operating System THREADS 8. Operating System 9. Operating System PROCESS SYNCHRONIZATION 10. Operating System SYNCHRONIZATION PROBLEM 11. Operating System DEADLOCK 12. Operating System MEMORY MANAGEMENT 13. Operating System VIRTUAL MEMORY 14. Operating System FILE SYSTEM

Version history

2 versions are listed, going back to v1.4.0.6. Since v1.4.0.8 it requires Android 5.0+.

v1.4.0.8 LATEST Sep 24, 2024 9 MB TRUSTED v1.4.0.6 Jun 4, 2024 5.1 MB TRUSTED

All 2 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Certificate with Google's generic name Google Play App Signing gives the keys it manages this name, but anyone can put it in a certificate, so this alone proves nothing.
Same certificate as the other version checked

Store checks and file details

Developer signature verified Sep 24, 2024
Signed byCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Signing certificate (SHA-1)CC:21:76:CF:FD:D5:B9:6A:3B:30:BC:0A:58:0E:AE:B5:A4:AF:FB:77
File MD513a1a315534117edbe1a8ab25c1640d1
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (1 other version compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (9)

OPERATING SYSTEM NOTES requests 9 permissions, none of them sensitive.

Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
Access adservices topics android.permission.ACCESS_ADSERVICES_TOPICS
Advertising ID com.google.android.gms.permission.AD_ID
Full network access android.permission.INTERNET
Internal broadcast protection (app-defined) com.techzone.higher.os.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
Run foreground services android.permission.FOREGROUND_SERVICE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch

OPERATING SYSTEM NOTES APK: questions and answers

Is there a version of OPERATING SYSTEM NOTES for older Android phones?

The current version needs Android 5.0 or later. Version 1.4.0.6 is the newest listed build that installs on Android 4.4 and later. It is an old build: apps that rely on online services may no longer connect when they are this old. Get version 1.4.0.6 · All versions

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 NOTES APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. It is signed with the same certificate as the other version checked. After downloading, check that the file's MD5 is 13a1a315534117edbe1a8ab25c1640d1.