Skip to main content

1.1.6 Identify Open Source And Closed Source Operating Systems

1.1.6 Identify Open Source And Closed Source Operating Systems

1.1.6 Identify Open Source And Closed Source Operating Systems
Open dan Closed sourse software

Open-Source Software (OSS)

From Wikipedia Open-source software (OSS) is

computer software with its source code made available with a license in which the copyright holder provides the rights to study, change, and distribute the software to anyone and for any purpose. Open-source software may be developed in a collaborative public manner. Open-source software is the most prominent example of open-source development and often compared to (technically defined) user-generated content or (legally defined) open-content movements.

The open-source model, or collaborative competition development from multiple independent sources, generates an increasingly diverse scope of design perspective than one company development alone can sustain long term.

Closed Source Software (OSS)

From damicon,Close Software

Closed-source programs are owned by someone (or some organization) and distributed through a variety of retail channels including the owner's website. If the program is in the form of shareware, a fully functional version of the program can be installed and run. There may be a limited period of time after which the software will disable itself.

The concept of shareware started out as a way for independent software developers to distribute their programs and make some money off of their efforts. As the concept gained acceptance and as some of these developers became successful, some software development companies adopted the idea.

Another approach is to create a demonstration (demo) version of the software. Demo versions are usually designed to expire after some period of time and/or may have limited features to prevent full use of the software. Demos are usually distributed by commercial enterprises.

Comparison of Open Source And Closed Source Operating Systems


Open Source OS
Closed Source OS
- True-open-source development requires that a community of software engineers band together to work on the software.
- The idea is that more minds create better software.
- Owned by someone (or some organization) and distributed through a variety of retail channels including the owner's website.
 - If the program is in the form of shareware, a fully functional version of the program can be installed and run.
- There may be a limited period of time after which the software will disable itself
Include source code for those interested in peering into how the program does what it does and possibly contributing to the development effort.
The source code is not usually included. The buyer pays for the right to use the program but does not own it

Comments

Popular posts from this blog

3.1.1 Identify Between Resident And Transient Routines

Memory Management Memory management is concerned with managing: The computer’s available pool of memory Allocating space to application routines and making sure that they do not interfere with each other. 3.1.1 Identify between resident and transient routines The operating system is a collection of software routines. Resident routines Transient routines Routines that directly support application programs as they run Stored on disk and read into memory only when needed Example: routine that control physical I/O Example: routine that formats disks The operating system occupies low memory beginning with address 0. Key control information comes first followed by the various resident operating system routines. The remaining memory, called the transient area, is where application programs and transient operating system routines are loaded. Resident & transient routines structure

2.1.4 Distinguish between logical I/O and physical I/O

2.1.4 Distinguish between logical I/O and physical I/O logical input relate to hard disk Logical I/O an Physical I/O Physical" I/O is an actual fetch of data from a storage device such as a disk. Logical" I/O is a programmatic request for data satisfied by a memory (block, buffer) access. A logical I/O may cause a physical I/O in the first place, or a logical I/O may retrieve a part of a block (buffer) of data from memory. 2.1.5 Distinguish between directory management and disk space management. Directory management A directory is a hierarchical collection of directories and files.  The only constraint on the number of files that can be contained in a single directory is the physical size of the disk on which the directory is located. Disk management A hard disk is a rigid disk inside a computer that stores and provides relatively quick access to large amounts of data. It is the type of storage most often used with Windows. The system also supp

Operating Systems Definition and the Classification of OS

             OPERATING SYSTEMS ( OS ) What is an operating system? An operating system (sometimes abbreviated as "OS") is the program that, after being initially loaded into the computer by a boot program, manages all the other programs in a computer. The other programs are called applications or application programs. The application programs make use of the operating system by making requests for services through a defined application program interface (API). In addition, users can interact directly with the operating system through a user interface such as a command language or a graphical user interface (GUI). An operating system performs these services for applications:     In a multitasking operating system where multiple programs can be running at the same time, the operating system determines which applications should run in what order and how much time should be allowed for each application before giving another application a turn.     It manages the sharing of