Saturday, October 8, 2016

COMPUTER SOFTWARE


From the previous we have talk about computer software as well but this time, we supergirls gonna talk allot more about it! Without further due..... HERE WE GO


A diagram showing how the user interacts with application software on a typical destop computer. The application software layer interfaces with the operating system, which iin turn communication with the hardware. the arrow indicates information. 


Computer software, or simply software, is that part of a computer system that consists of encoded information or computer instructions, in contrast to the physical hardware from which the system is built.


Software release life cycle

Stage of development

  • Pre-alpha - phase to begin software testing 
  • Beta - beta testing is reducing impacts to users, often incorporating usability testing
  • Release candidate - A release candidate (RC) is a beta version with potential to be a final product, which is ready to release unless significant bugs emerge 

Once released, the software is generally known as a "stable release". The formal term often depends on the method of release: physical media, on-line release or a web application. 

  • End-of-life - When software is no longer sold or supported, the product is said to have reached end-of-life, to be discontinued, retired, or obsolete, but user loyalty may continue its existence for some time, even long after its platform is obsolete—e.g., the Atari ST and Sinclair ZX Spectrum
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Friday, October 7, 2016

MODES OF COMPUTER SYSTEM OPERATION

Operating systems enable the system they manage to operate in various modes. These include batch processing, time sharing, and real-time processing.
Batch processing Processing programs or transactions in batches, without a user's interaction.
Time Sharing Systems providing interactive processing by allocating a short time slice for the use of the server to each user in turn.
Real-time Processing Systems that respond to an event within a fixed time interval; used for example, in manufacturing plants or to collect data from several pieces of equipment in a laboratory.

With the move toward multiprocessors, in which several (or even many) processors are configured in a single computer system, multiprocessing operating systems have been designed to allocate the work to the multiple processors. These systems also support multiprogramming, which allows many programs to compete for the processors

OPERATING SYSTEM SOFTWARE


What Does an Operating System Do?

The operating system is the software that controls all the resources of a computer system. For example it:
1. Assigns the needed hardware to programs
2. Schedules programs for execution on the processor
3. Allocates the memory required for each program
4. Assigns the necessary input and output devices
5. Manages the data and program files stored in secondary storage
6. Maintains file directories and provides access to the data in the files
7. Interacts with the users

MANAGEMENT INFORMATION SYSTEM SOFTWARE




COMPUTER SOFTWARE OVERVIEW
Computer hardware is virtually useless without computer software. Software is the programs that are needed to accomplish the input, processing, output, storage, and control activities of information systems.
Computer software is typically classified into two major types of programs: system software and application software.

Systems software are programs that manage the resources of the computer system and simplify applications programming. They include software such as the operating system, database management systems, networking software, translators, and software utilities.
Application Software
Application software are programs that direct the performance of a particular use, or application, of computers to meet the information processing needs of end users. They include Aoff-the-shelf@ software such as word processing and spreadsheet packages, as well as internally or externally developed software that is designed to meet the specific needs of an organization.
Software trends have been away from custom-designed one-of-kind programs developed by the professional programmers or end users of an organization toward the use of Aoff-the-shelf or software packages acquired by en users from software vendors

Two types of packages are available:
















Monday, October 3, 2016

CHAPTER 1 : BUSINESS INFORMATION SYSTEMS IN YOUR CAREER




A management information system (MIS) focuses on the management of information systems to provide efficiency and effectiveness of strategic decision making. the concept may include systems termed transaction processing system, decision support system, expert system, or executive information system. the term is often used in the academic study of businesses and has connections with other areas, such as information systems, information technology, informatics, e-commerce and computer science; as a result, the term is used interchangeably with some of these areas.


  • Information technology is the hardware and software a business uses to achieve objectives.
  • information system is interrelated components that manage information to :                                               
         - support decision
         - help with analysis, visualization, and product  creation.

                                                 

    FUNCTION OF INFORMATION SYSTEM



    An information system contains information about an organization and its surrounding environment. three basic activities - input, processing, and output - produce the information organizations need. feedback is output returned to appropriate people or activities in the organization to evaluate and refine the input. Environmental actors, such as customers, suppliers, competitors, stockholders, and regulatory agencies, interact with the organization and its information system.

    THE ROLE OF INFORMATION SYSTEMS IN BUSINESS TODAY 

    WHAT'S NEW IN MIS?  
    • New technologies
    - cloud computing
    - software as a service (SaaS)
    - Mobile digital platform  

    • People and behavior changes
    - Managers use social networks
    - Employees have access to powerful decision aids.
    - virtual meetings are accepted and used.

    • Organizations
    - web 2.0 applications widely adopted
    - telework gains momentum
    - co-creation of value, collaboration across firms.

    GLOBALIZATION CHALLENGES AND OPPORTUNITIES :
                              A FLATTENED WORLD


    • internet and global communications have greatly reduced economic and cultural advantages of developed countries.
     - Drastic reduction of costs of operating and transacting on global scale.
     - competition for jobs, markets, resources, ideas.
     - Dependence on imports and exports.
     - Requires new understandings of skills, markets, opportunities.

    BUSINESS DRIVERS OF INFORMATION SYSTEMS
    • Business invest in IT to achieve six important business objectives.
                   (a) operational excellence
                   (b) New products, services, and business model
                   (c) Customer and supplier intimacy
                   (d) Improved decision making
                   (e) Competitive advantage
                    (f) Survival                                                  

    SUPER GIRLS


    Assalammualaikum dan haiiiiiiii~
    jomm ramai ramai kenal dengan akak akak gojess  2 BTMI.
    we are super girlssss dari 2 btmi . Yang depan sekali tanpa spect tuuu suraiyaa , yang sebelah suraiya yg pakai spect tu neesa, yg comel tudung purplee tu nikaaaa, yang kuning tuuu 'kakak mpp' panggil dia mek dan yang kelabu tuu kita panggil dia ecah . lastly, jum kenal kenal dengan akak yang tak ada dalam gambar ni nama dia Nor Atikah and u olls boleh panggil dia AB.