Transcript SOFTWARE - RMM ICT GROUP | sekadar luahan rasa

CONTENT
Introduction
Operating
System (OS)
Summary
Application
Software
Utility Program
Proprietary and Open Source Software
Summary
Introduction
 Do
you know what types of this
pictures are?
This lesson will be a walkthrough on
Software which basically divided into
2 categories :
Operating System
Application Software
Operating System (OS)
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Is a set of programs that schedule tasks, allocates storage
and presents a default interface to the user between
applications.
The functions of OS:
1. Starting a computer
2. Providing a user interface.
3. Managing data and programs.
4. Managing memory.
5. Configuring Devices.
Many of the OS were device-dependent and proprietary.
Various Types of OS in Different Platform
1.
PC Platform uses OS:
a) Disk OS (DOS)
- Used a command line interface when Microsoft 1st
develop.
- It’s a closed source software.
b) Microsoft Windows XP
- It’s operating environment is Graphical User
Interface (GUI).
- It’s a closed source software.
2.
Apple Platform uses OS:
a) Mac OS
- It’s a 1st commercial successful GUI.
- Used in home desktop and workstations.
b) Mac OS X
- It’s a multitasking OS.
- Used in home desktops, workstations and servers.
- Better security protection compared to Mac OS.
3.
Cross-Platform uses OS:
a) UNIX
- Multitasking OS.
- Offer command line interface and GUI.
b) LINUX
- Is a popular, free and UNIX-like GUI.
- Open source software.
Different Interface of OS
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User Interface is the part of an OS that you see and interact
with and by which users and programs communicates with
each other.
Importance of user interfaces are:
1. To assist users interacting with a software.
2. To control how a user enters data and instructions.
3. To control how information is displayed.
3 types of user interfaces are:
1. Command-line Interface
2. Menu-driven Interface
3. GUI
1.
Command-line Interface
- Requires user to type commands to enter data and
instructions that instruct the OS what to do.
- Difficult to use because it requires exact spelling, syntax
and a set of rules.
- Advantage : Help user to operate computer quickly
after memorizing the keywords and syntax.
2.
Menu-driven Interface
- Enable user to avoid memorizing keywords such as
copy, paste and syntax.
- On screen, it shows the options available at a given
point in a form of text-based menu.
- Easy to learn.
3.
GUI
- Makes use of computer’s graphics capabilities to make
the OS and programs easier to use (user-friendly).
- Used to create the desktop that makes user easily
differentiate between interface.
- Interact with menus and visual images such as buttons,
icons, and other graphical objects to issue commands.
Summary
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OS is a set of programs presents a default interface to the
user between applications.
The functions of OS is starting a computer, providing a user
interface, managing data and programs, managing memory
and configuring Devices.
Various types of OS that uses different platform:
a) PC Platform - Disk OS (DOS) and Microsoft Windows XP
b) Apple Platform - Mac OS and Mac OS X
c) Cross-Platform - UNIX and LINUX
User Interface is the part of an OS that you see and interact
with.
3 types of user interfaces are, Command-line Interface,
Menu-driven Interface and GUI.
Types of Application Software
1.
2.
3.
4.
The program that is designed to assist users with personal
Word Processing
– An office
application
that enable user
tasks is called
an application
software.
to create, edit, format and print
textual documents (Exp: MS Word).
Spreadsheet – A program that processes information in `
the form of tables. Table cells can hold
values and mathematical formulas
(Exp: MS Excel).
Presentation – Allow user to create visual AIDS or
presentation to communicate ideas,
messages and other information to a
group (MS PowerPoint).
Graphics – Program that edit digital representation or
non-text information such as drawings, charts
or photographs (Windows Movie Maker).
Utility Program
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Perform maintenance-type tasks related to the managing of
a computer, its devices and programs.
Enhance existing functions or provide services not supplied
by other software programs.
Most computer come with built-in utilities
Types of Utility Program
1.
File Manager
- Software used to manage files on a disk.
- Provide functions of delete, copy, moves and view the
file as well as create and manage folders, formatting
and identify the capacity of the storage medium.
2.
Diagnostic Utility
- Compiles technical information about a computer’s
hardware and prepares a report outlining any identified
problems.
- Example : User guide (Help Menu)
3.
File Compression Utility
- Removes redundant elements, gaps and unnecessary
data from a computer’s storage capacity.
- Also called zipped files.
- A compressed file must be unzipped to its original form
before being used.
- Example : WinZip
Proprietary and Open Source Software
1.
Proprietary Software
- Also called closed source software.
- Offers a stable system with support if the software fails
or malfunctions.
- Example
:
MS-DOS, Mac OS and UNIX.
2.
Open Source Software
- Provide for use, modifications and redistributions.
- Can download from internet for free and make
improvement by the user.
- Example
:
LINUX
Differentiate Between Proprietary and
Open Source Software
Proprietary Software
(Windows XP)
Advantage
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Runs on a wide range of
Hardware
Has largest market share
Has many built-in utilities
Open Source Software
(LINUX)
Advantage
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Disadvantage
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Security problems
Not sufficient as a server OS
Have to reboot every time a
network configuration changed.
Runs on a wide range of
Hardware
Has a largest number of a user
interface types
Can be used as server desktop
PC OS
Disadvantage
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Limited support for games.
Limited commercial applications
available
Can be difficult to learn
Summary
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1.
2.
3.
4.
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1.
2.
3.
There are 4 types of Application Software :
Word Processing
Spreadsheet
Presentation
Graphics
Utility Program perform maintenance-type tasks related
to the managing of a computer, its devices and programs.
3 types of Utility Program are :
File Manager
Diagnostic Utility
File Compression Utility