LOCAL.pptx

1. Submitted To: Mam Komal Fatima
Submitted By: Hina Asghar
Roll No: BSCS/FA19/552
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2. *
• Variable is a name of storage location.
• Used to store data temporarily.
• Variable will not have specific data type.
RULES:
• Variable names cannot contain spaces.
• Variable names must begin with a letter, an
underscore (_) or a dollar sign ($).
• Variable names can only contain letters, numbers,
underscores, or dollar signs.
• Variable names are case-sensitive.

3. *
Local variable
Global variable

4. *
• Variables declared within a JavaScript function,
become LOCAL to the function.
Scope:
• Local variables have local scope.
• They can only be accessed within the function.

5. *
• Since local variables are only recognized inside their
functions, variables with the same name can be used
in different functions.
• Local variables are created when a function starts,
and deleted when the function is completed.

7. • Security: iOS is a secure operating
system that includes a number of
features to protect user data.
• App Store: The App Store is a
digital distribution platform that
allows users to download and
install apps on their iOS devices.
• User interface: The user interface
of iOS is simple and easy to use.
• Hardware integration: iOS is
tightly integrated with Apple's
hardware, which results in a
smooth and responsive
experience.
• Updates: iOS is regularly updated
with new features and security
patches.
• Closed-source: iOS is a closed-
source operating system, which
means that only Apple can
develop software for it. This can
limit the availability of apps and
features.
• Price: iOS devices are typically
more expensive than devices that
run other mobile operating
systems.
• Customization: iOS is not as
customizable as other mobile
operating systems. This can be a
drawback for some users.
• Updates: iOS updates can
sometimes be slow and
disruptive.

8. *
Here are some of the features of iOS:
•Multitasking
•Notifications
•Security
•App Store
• iCloud

9. *iPhone OS:
•Apple iOS, formerly known as iPhone OS, is the mobile operating
system developed by Apple Inc.
•It is basically designed for iPhone, iPad, and iPod Touch.
•iPhone OS is based on Darwin OS, which is an open-source
operating system developed by Apple.
•In terms of security iOS is more secure than Android.
•The Apple iOS is not allowed to be used in third party systems, so
we will only be able to use it on products made by Apple.
•It comes with the Safari web browser for internet use, an iPod
application for playing music and Apple's Mail for managing
memos.
•The user interface is designed to be simple and easy to use, with
large buttons and icons
•According to apple according to some researchers iOS is packed
with tons OS security features.
•The iPhone supports more than a dozen file and image formats,
including PDF, Microsoft Word, Excel, PowerPoint,and iWork
attachments.

10. * Lack of apps: BlackBerry OS has a
limited app selection compared
to other mobile operating
systems, such as Android and iOS.
* Price: BlackBerry OS devices are
typically more expensive than
devices that run other mobile
operating systems.
* Design: BlackBerry OS devices
have a traditional design that
some people may find outdated.
* Updates: BlackBerry OS is no
longer being updated. This means
that BlackBerry OS devices are
not as secure or up-to-date as
devices that run other mobile
operating systems.
* Security: BlackBerry OS is known
for its security features. The
operating system uses a variety of
security measures to protect data,
including encryption,
authentication, and authorization.
* Productivity: BlackBerry OS is
designed for productivity. The
operating system includes a
variety of features that make it
easy to stay organized and get
work done, such as a built-in
calendar, email client, and text
editor.
* Keyboard: BlackBerry OS devices
typically have a physical keyboard,
which makes it easy to type
quickly and accurately.
* Battery life: BlackBerry OS devices
typically have good battery life.
This is due in part to the operating
system's power-saving features.

11. *BlackBerry OS:
• BlackBerry OS was a mobile operating system developed by RIM. It was
known for its focus on security, efficiency, and communication
capabilities. BlackBerry OS featured a physical QWERTY keyboard,
email integration, BlackBerry Messenger (BBM), and strong support for
corporate email and messaging systems. BlackBerry OS used a
combination of AES and DES to provide end-to-end encryption for user
data. It was used by businesses and governments around the world to
protect sensitive data.
Advantages:
• BlackBerry OS is a secure mobile operating system that uses a variety of
security measures to protect data.
• BlackBerry OS is a productivity-focused mobile operating system.
• BlackBerry OS devices have a physical keyboard for quick and accurate
typing.
• BlackBerry OS devices have good battery life thanks to power-saving
features
Disadvantages:
• BlackBerry OS has a limited app selection.
• BlackBerry OS devices are more expensive than devices that run other
mobile operating systems.
• BlackBerry OS devices have a traditional design that some people may
find outdated.
• BlackBerry OS is no longer being updated, which makes it less secure
and up-to-date than other mobile operating systems.

12. *Popular mobile operating systems:
• Apple iOS
• Blackberry OS
• Android OS
• Bada
• Blackberry OS
• Windows Mobile OS
• Symbian OS
• Palm OS
• Web OS
• Harmony OS

13. *Mobile operating
system:
Apple iOS is a mobile operating system developed by
Apple Inc.Designed for Apple hardware, such as the
iPhone, iPad, and iPod Touch. Based on Darwin OS, which
is an open-source operating system developed by Apple.
More secure than Android. Not allowed to be used in
third-party systems.Comes with built-in apps like Safari,
Mail, and Music.Supports more than a dozen file and
image formats, including PDF, Microsoft Word, Excel,
PowerPoint, and iWork attachments.
Popular mobile operating systems:
•Apple iOS
•Blackberry OS
•Android OS
•Bada
•Blackberry OS
•Windows Mobile OS
•Symbian OS
•Palm OS
•Web OS
•Harmony OS

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