DOS Introduction app icon

DOS Introduction

Disk Operating System Notes

Softied Apps · com.Softied.DOSIntro

Not rated yet 1K+ downloads v1.1.2 3.9 MB Android 4.2+ PEGI 3 · Everyone

Download APK 3.9 MB All versions
  • Signature matches the Google Play version Details

At a glance

Latest version
v1.1.2 (6)
Updated
Jan 8, 2026 (9 months ago)
APK size
3.9 MB
Requires
Android 4.2+ (API 17)
CPU support
x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
Graphics
OpenGL ES 2.0+
Category
Education (app)
Listed since
Mar 21, 2023 (at least)
Permissions
10 (3 sensitive)
Website
saadmehmood.com
Developer contact
[email protected]
Privacy
Developer's privacy policy

About this APK

DOS Introduction is an app by Softied Apps in the Education category, listed since at least March 2023. It includes native code for x86 32-bit, x86 64-bit, ARM 32-bit and ARM 64-bit, so it runs on practically every phone.

It asks for 10 permissions, 3 of them sensitive: approximate location, read phone status and identity and modify shared storage.

Description

From the listing uploaded by “appupdater”.

This app contains DOS basic notes. DOS is a platform-independent acronym for Disk Operating System, which was initially introduced by IBM for the System/360 mainframe and later became common shorthand for the popular family of disk-based operating systems for x86-based IBM PC compatibles. DOS primarily consists of Microsoft's MS-DOS and a rebranded IBM version under the name PC DOS, both of which were introduced in 1981. Later compatible systems from other manufacturers are DR DOS (since 1988 by Digital Research, later sold to Novell then spun into Caldera, Lineo, and finally DeviceLogics), ROM-DOS (since 1989 by Datalight), PTS-DOS (since 1993 by Paragon Technology and PhysTechSoft), Embedded DOS (by General Software), FreeDOS (1998), and RxDOS. MS-DOS dominated the IBM PC compatible market between 1981 and 1995. [Source: Wikipedia]

Security & authenticity

Security rating: Trusted

Signing certificate

  • Signature matches the Google Play version Checked by the source store on Jan 8, 2026.
  • Certificate issued to “gonapps” This is the certificate of the Google Play version.

Store checks and file details

  • Developer signature verified Jan 8, 2026
  • Validated against Google Play Jan 8, 2026
  • Signed byCN=gonapps
  • Signing certificate (SHA-1)EF:F1:F0:5F:49:79:32:48:83:1B:58:F1:2B:09:87:A0:BF:90:BE:DF
  • File MD51d285b321f072ab5b4da47ffdc32a5d5
  • 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. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (10)

DOS Introduction requests 10 permissions, 3 of them sensitive.

Required hardware & features

DOS Introduction APK: questions and answers

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

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the DOS Introduction APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. After downloading, check that the file's MD5 is 1d285b321f072ab5b4da47ffdc32a5d5.

Tags

softied dosintro education introduction

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