Chapter 3 :

Computer Software

Application Perspective

COM 1013

Application software(Application Perspective) is a defined subclass of computer software that employs the capabilities of a computer directly to a task that the user wishes to perform.

Application software is all the computer software that causes a computer to perform useful tasks (compare with Computer viruses) beyond the running of the computer itself. A specific instance of such software is called a software application, application or app.

Application Software: Application Software includes

programs that do real work for user.

Application software: helps users solve particular problems

In most cases, application software resides on the computer’s hard disk

Application software can also be stored on CDs, DVDs, and flash or keychain storage devices

Example: Payroll systems, Inventory Control, Manage student database, Word Processor, Spreadsheet and Database Management System etc.

General Purpose Application Programs / GENERAL PURPOSE

Software Suites o Software Suites Separate applications

bundled and sold together OR application suite consists of multiple applications bundled together.

o They usually have related functions, features and user interfaces, and may be able to interact with each other, e.g. open each other's files.

Web BrowsersThe Electronic Mail Electronic mail (e-mail) Designed as a

extension of traditional office memo.

The email software transmits a copy of the message to each recipient. Electronic mail systems are automated to permit more complex interactions Every user must be assigned an electronic mailbox.

The mailbox consists of a passive storage area. Each electronic mail box has a unique address, divided into two parts.

The first identifies a user mailbox.

Second identifies a computer on which the mailbox resides.

Ex: mailbox@computer .Sender uses the second part to select a destination. Recipient’s computer uses the first part to select a particular mailbox.

Word Processors

Spreadsheet

Database Management System (DBMS):

A DBMS is a software tool that allows multiple users to store, access, and process data into useful information.

Database programs are designed for these types of applications:

-> Membership lists

-> Student lists

-> Grade reports

-> Instructor schedules

All of these have to be maintained so you can find what you need quickly and accurately.

Graphic PresentationsThe presentation programs can make giving

presentations and using overheads easier. Other uses include :

>> Slide Shows

>> Repeating Computer Presentations on a computer monitor

>> Using Sound and animation in the slide show

The most recognized graphic presentation programs are Microsoft PowerPoint.

Personal Information Management (PIM)

Personal information management (PIM) refers to both the practice and the study of the activities people perform in order to acquire, organize, maintain, retrieve and use information items such as documents (paper-based and digital), web pages and email messages for everyday use to complete tasks and fulfill a person’s various roles.

APPLICATION SPECIFIC PROGRAM / SPECIFIC PURPOSE SOFTWARE

Uses only specific field / area

The operating system itself can be considered application software when performing simple calculating, measuring, rendering, and word processing tasks not used to control hardware via command-line interface or graphical user interface. This does not include application software bundled within operating systems such as a software calculator or text editor.

Enterprise software addresses the needs of an entire organization's processes and data flow, across most all departments, often in a large distributed environment. (Examples include financial systems, customer relationship management (CRM) systems and supply chain management software). Departmental Software is a sub-type of enterprise software with a focus on smaller organizations and/or groups within a large organization. (Examples include travel expense management and IT Helpdesk.)

• Enterprise infrastructure software provides common capabilities needed to support enterprise software systems. (Examples include databases, email servers, and systems for managing networks and security.)

• Information worker software lets users create and manage information, often for individual projects within a department, in contrast to enterprise management. Examples include time management, resource management, documentation tools, analytical, and collaborative. Word processors, spreadsheets, email and blog clients, personal information system, and individual media editors may aid in multiple information worker tasks.

• Content access software is used primarily to access content without editing, but may include software that allows for content editing. Such software addresses the needs of individuals and groups to consume digital entertainment and published digital content. (Examples include media players, web browsers, and help browsers.)

• Educational software is related to content access software, but has the content and/or features adapted for use in by educators or students. For example, it may deliver evaluations (tests), track progress through material, or include collaborative capabilities.

• Product engineering software is used in developing hardware and software products. This includes computer-aided design (CAD), computer-aided engineering (CAE), computer language editing and compiling tools, integrated development environments, and application programmer interfaces.

• Simulation software simulates physical or abstract systems for research, training or entertainment purposes.

• Media development software generates print and electronic media for others to consume, most often in a commercial or educational setting. This includes graphic-art software, desktop publishing software, multimedia development software, HTML editors, digital-animation editors, digital audio and video composition, and many others.

• Product engineering software is used in developing hardware and software products. This includes computer-aided design (CAD), computer-aided engineering (CAE), computer language editing and compiling tools, integrated development environments, and application programmer interfaces.