FREE WINDOWS 8.1 SERIAL KEYS AND ACTIVATORS

Windows 8.1 Pro

WHAT IS AN OPERATING SYSTEM?

What is an Operating System?

An Operating System (OS) is a software that acts as an interface between computer hardware components and the user. Every computer system must have at least one operating system to run other programs. Applications like Browsers, MS Office, Notepad Games, etc., need some environment to run and perform its tasks.

The OS helps you to communicate with the computer without knowing how to speak the computer’s language. It is not possible for the user to use any computer or mobile device without having an operating system.

History Of OS

  • Operating systems were first developed in the late 1950s to manage tape storage
  • The General Motors Research Lab implemented the first OS in the early 1950s for their IBM 701
  • In the mid-1960s, operating systems started to use disks
  • In the late 1960s, the first version of the Unix OS was developed
  • The first OS built by Microsoft was DOS. It was built in 1981 by purchasing the 86-DOS software from a Seattle company
  • The present-day popular OS Windows first came to existence in 1985 when a GUI was created and paired with MS-DOS.

Following are the Operating System examples with the latest Market Share

OS NameShare
Windows40.34
Android37.95
iOS15.44
Mac OS4.34
Linux0.95
Chrome OS0.14
Windows Phone OS0.06

Types of Operating System (OS)

Following are the popular types of OS (Operating System):

  • Batch Operating System
  • Multitasking/Time Sharing OS
  • Multiprocessing OS
  • Real Time OS
  • Distributed OS
  • Network OS
  • Mobile OS

Batch Operating System

Some computer processes are very lengthy and time-consuming. To speed the same process, a job with a similar type of needs are batched together and run as a group.

The user of a batch operating system never directly interacts with the computer. In this type of OS, every user prepares his or her job on an offline device like a punch card and submit it to the computer operator.

Multi-Tasking/Time-sharing Operating systems

Time-sharing operating system enables people located at a different terminal(shell) to use a single computer system at the same time. The processor time (CPU) which is shared among multiple users is termed as time sharing.

Real time OS

A real time operating system time interval to process and respond to inputs is very small. Examples: Military Software Systems, Space Software Systems are the Real time OS example.

Distributed Operating System

Distributed systems use many processors located in different machines to provide very fast computation to its users.

Network Operating System

Network Operating System runs on a server. It provides the capability to serve to manage data, user, groups, security, application, and other networking functions.

Mobile OS

Mobile operating systems are those OS which is especially that are designed to power smartphones, tablets, and wearables devices.

Some most famous mobile operating systems are Android and iOS, but others include BlackBerry, Web, and watchOS.

Functions of Operating System

Some typical operating system functions may include managing memory, files, processes, I/O system & devices, security, etc.

Below are the main functions of Operating System:

Functions of Operating System
Functions of Operating System

In an operating system software performs each of the function:

  1. Process management:- Process management helps OS to create and delete processes. It also provides mechanisms for synchronization and communication among processes.
  2. Memory management:- Memory management module performs the task of allocation and de-allocation of memory space to programs in need of this resources.
  3. File management:- It manages all the file-related activities such as organization storage, retrieval, naming, sharing, and protection of files.
  4. Device Management: Device management keeps tracks of all devices. This module also responsible for this task is known as the I/O controller. It also performs the task of allocation and de-allocation of the devices.
  5. I/O System Management: One of the main objects of any OS is to hide the peculiarities of that hardware devices from the user.
  6. Secondary-Storage Management: Systems have several levels of storage which includes primary storage, secondary storage, and cache storage. Instructions and data must be stored in primary storage or cache so that a running program can reference it.
  7. Security:- Security module protects the data and information of a computer system against malware threat and authorized access.
  8. Command interpretation: This module is interpreting commands given by the and acting system resources to process that commands.
  9. Networking: A distributed system is a group of processors which do not share memory, hardware devices, or a clock. The processors communicate with one another through the network.
  10. Job accounting: Keeping track of time & resource used by various job and users.
  11. Communication management: Coordination and assignment of compilers, interpreters, and another software resource of the various users of the computer systems.

WHAT IS WINDOOWS OPERATING SYSTEM?

Microsoft Windows, commonly referred to as Windows, is a group of several proprietary graphical operating system families, all of which are developed and marketed by Microsoft. Each family caters to a certain sector of the computing industry.

WINDOWS OS VERSIONS

Personal computer versions

NameCodenameVersion
Windows 7Windows 7NT 6.1
Windows 8Windows 8NT 6.2
Windows 8.1BlueNT 6.3
Windows 10 version 1507Threshold 1NT 10.0

Windows 8.1 product key is a unique 25-digit code you must provide to activate your copy of Windows

All Windows 8.1 serial keys on this post are genuine and free. We’ve included serial keys for both Ultimate and professional versions of windows 8.1.

You only need to use one Windows 8.1 serial key depending on the version your computer is running.

Windows 8.1 Ultimate Serial Keys

DNJXJ-7XBW8-2378T-X22TX-BKG7J

KKPMN-469HY-H6V43-T8VX2-8W8XV

T3NJK-3P683-2T7BJ-2X27F-8B2KV

TT4HM-HN7YT-62K67-RGRQJ-JFFXW

MNDGV-M6PKV-DV4DR-CYY8X-2YRXH

JMNMF-RHW7P-DMY6X-RF3DR-X2BQT

DFHJDU-QJH7K-FJDJ-FQJ24-DFJD

3FCND-JTWFM-24VQ8-QXTMB-TXT67

GX9N8-4H2FH-D987T-BQ9GK-XKT67

FJKDI-3DRJD-7D38SO-DFNDJ-FJKDI

DHJSU-V9KF6-FHJDU-KWBTC-DFJDU

Windows 8.1 Pro Serial keys

HMCNV-VVBFX-7HMBH-CTY9B-B4FXY

MBFBV-W3DP2-2MVKN-PJCQD-KKTF7

6RH4V-HNTWC-JQKG8-RFR3R-36498

4Y8N3-H7MMW-C76VJ-YD3XV-MBDKV

28VNV-HF42G-K2WM9-JXRJQ-2WBQW

XHQ8N-C3MCJ-RQXB6-WCHYG-C9WKB

34NH-RXG76-64THK-C7CKG-D3VPT

TT4HM-HN7YT-62K67-RGRQJ-JFFXW

FHQNR-XYXYC-8PMHT-TV4PH-DRQ3H

ND8P2-BD2PB-DD8HM-2926R-CRYQH

MHF9N-XY6XB-WVXMC-BTDCT-MKKG7

MNDGV-M6PKV-DV4DR-CYY8X-2YRXH

N4WY8-DVW92-GM8WF-CG872-HH3G7

NTTX3-RV7VB-T7X7F-WQYYY-9Y92F

KQWNF-XPMXP-HDK3M-GBV69-Y7RDH

MMRNH-BMB4F-87JR9-D72RY-MY2KV

GCRJD-8NW9H-F2CDX-CCM8D-9D6T9

FHQNR-XYXYC-8PMHT-TV4PH-DRQ3H
ND8P2-BD2PB-DD8HM-2926R-CRYQH
HMCNV-VVBFX-7HMBH-CTY9B-B4FXY
MHF9N-XY6XB-WVXMC-BTDCT-MKKG7
MBFBV-W3DP2-2MVKN-PJCQD-KKTF7

28VNV-HF42G-K2WM9-JXRJQ-2WBQW
XHQ8N-C3MCJ-RQXB6-WCHYG-C9WKB
6RH4V-HNTWC-JQKG8-RFR3R-36498
4Y8N3-H7MMW-C76VJ-YD3XV-MBDKV

NTTX3-RV7VB-T7X7F-WQYYY-9Y92F
KQWNF-XPMXP-HDK3M-GBV69-Y7RDH
MMRNH-BMB4F-87JR9-D72RY-MY2KV
GCRJD-8NW9H-F2CDX-CCM8D-9D6T9

34NH-RXG76-64THK-C7CKG-D3VPT
N4WY8-DVW92-GM8WF-CG872-HH3G7
TT4HM-HN7YT-62K67-RGRQJ-JFFXW
MNDGV-M6PKV-DV4DR-CYY8X-2YRXH

Insert the keys and enjoy.

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