4. OUTLINE
• What is software?
• Application software.
• Overview of Application software.
• Software Packages.
5. What is Software
Software consists of computer programs that
control the workings of the computer hardware
(statements to the computer) and program
documentation used to explain the programs to
the user.
6. Principles of Information
Systems, Eighth Edition
6
Why Learn About Software?
• Software is indispensable for any computer
system
• Systems software needed for input, calculations,
and output
• Application software aids in productivity
• Personal tasks using software
– Income tax preparation
– Keeping a budget
– Internet research
– Games
7. Overview of Software
There are two basic types of software:
• Systems Software is a set of programs that
support the computer system by coordinating
the activities of the hardware and the
applications. Systems software is written for a
specific set of hardware, most particularly the
CPU.
• Application Software is a set of programs that
solve specific user-oriented problems.
8.
9. Principles of Information
Systems, Eighth Edition
9
Application Software
• 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
10. Principles of Information
Systems, Eighth Edition
10
Application Software
• Primary function is to apply the power of the
computer to give individuals, workgroups, and
the entire enterprise the ability to solve
problems and perform specific tasks
• Application programs interact with systems
software; systems software then directs
computer hardware to perform the necessary
tasks
11. Types of Application Software
In-house developed Contract
Proprietary Software
In-house developed Contract
Customized Package Standard Package
Off-the-shellf Software
Application Software
12. Principles of Information Systems, Eighth
Edition
12
Overview of Application Software
(continued)
Figure 4.13: Types of Application Software
13. Principles of Information
Systems, Eighth Edition
13
Overview of Application Software
• Proprietary software: one-of-a-kind program
for a specific application, usually developed
and owned by a single company
• Off-the-shelf software: existing software
program that is purchased
