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SOFTWARE
`Consists of sequences of instructions called programs that can be
understood and executed by hardware.'
Software is classified as under different terms depending on what
tasks are needed, the image on the next slide will break it down.…read more

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Examples
Operating Windows7, Mac10.7
System `Lion'
System
Library
Programs
Firewall(Windows
Defender)
Utility
Programs
File Compression
Backup Software
Programming Assembler
Software
Language Compiler
Translators Interpreter
Microsoft Word,
General Purpose
Application Databases, Spread
Software sheets
Special Purpose Web browser, Maps,
Application
Application Software
Tills.
Bespoke BBC TV, Air Control,
Application Warehouse Dispatch
Software tracking…read more

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OPERATING SYSTEMS
Every computer needs a Operating system or
sometimes referred to as OS.
Operating systems act as an interface making it easier
for the user to manipulate the machine rather than
trying to manipulate the hardware directly.
Operating systems create a platform so that
application programs can run. Most of these are
written in different formats.
This means that certain things made for a PC using
Windows 7 won't work on a Apple Mac.…read more

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PROGRAM LIBRARY
This is a collection of compiled routines that allow
other programs to use.
Good example is Print routine. A spread sheet
make use the same routine as a word processing
program.
Different software can share the libraries…read more

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UTILITY PROGRAMS
These are programs that perform specific tasks related
to the working with computers.
For example you may want to backup your computer.
There is software that allows you to do this on the
computer.
Most the time, majority of Utility programs are
already installed. Others maybe allowed to install at a
later time.
Most of these Programs are found in the control panel
or settings of a computer.…read more

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