Types Of Software
How does a Multi-User system deal with the requests from multiple users?
'slices up' and divides resources such as memory and processing power between all the users
It is written ("hard-coded") to
A ROM chip
A collection of applications is called
A suite
suite examples
Adobe creative suite, application sofware
An operating system should (2):
Allow you to Copy and Paste from different applications
An operating system should:
Allow you to see the contents of any drive connected to your system
what type of application runs a computer?
An Operating system
examples of utility software:
Anti-Virus, Firewall, Anti-Spyware
cycle of how an operating system works
Application Software ¬> Operating system (OS) ¬> Hardware ^ <----¬
three main types of software
Application, operating, utility
examples of utility software (3):
Crash Protection, Device Driver, Copying/writing to CD
A single user OS has to:
Deal with the input of a single user at a time
examples of utility software (2):
Disk Checker, Internet Filter, File Recovery
what does the GUI do?
Gives users access to all the parts of the computer
what does GUI stand for?
Graphical User Interface
It is also called Firmware because:
It can not be arbitrarily edited by the user
Called firmware because
It is a piece of software that is tightly (firmly) linked to a specific type of Hardware
An operating system should (4):
Manage the memory (RAM)
Multi-User operating system such as Mainframes have to deal with:
Many people accessing and using the computer at once
Most popular OS?
Microsoft Windows
A NOS has to (2):
Monitor the number of people using the network and the resources they are using
What does NOS stand for?
Network Operating System
A single user OS has to (2):
Resources such as memory do not need to be shared between different users
Multi-tasking
Run more than one program at once. For example when copying something from one application to another
What does a Utility program look after?
Safe and proper running of the computer
when programs are ran in the background where is it loaded?
The RAM
Firmware updates can be carried out when
The device is connected to the internet
Extra RAM increases speed when working with multiple programs as:
The loaded processes running in the background are loaded into RAM therefore meaning the greater the amount of RAM the more taxing processes can be ran in the background
What manages this process?
The operating system
Firmware
The operating system of an embedded device such as a smartphone, DVD player, Digital Camera or media player
What does WIMP stand for?
Window Icon Menu Pointer
Examples of single user operating systems:
Windows, Mac OS, Linux
A NOS is a type of X OS
X= Multi-User
This hardware would be X without Firmware
X= useless
DTP, presentation,Database management system
application
Word Processor
application
graphics software
application
spreadsheet
application
web design, app, Animation software
application
An operating system should (3):
copy data from an external drive to an internal or other external drive
An operating system should (6):
detect and manage input and output devices that are attached to the computer
In comparison to desktop or laptop computers embedded computers crash..
less
A NOS has to (3):
maintain the security of the system by managing logins and passwords
An operating system should (5):
manage processor time
A NOS has to:
share out available resources with the current users
You can change options but you cannot change...
the programming, this ensures reliability
