Computer system servicing (CSS) is the process of maintaining, repairing, and installing computer hardware and software. It also involves setting up and configuring computer networks.

1. ADVANTAGES AND
DISADVANTAGES, ALSO KEY
FEATURES OF ANDROID OS AND
IPHONE OPERATING SYSTEM (IOS)
PRESENTED BY GROUP 2

2. Introduction
Android and iOS are the two dominant mobile operating
systems,
coming with their set of unique advantages and
disadvantages.
The open-source nature of Android allows for better
customization and various devices.
iOS, on the other hand, is known for its flawless
integration, security, and user-friendly ecosystem.

3. ADVANTAGES OF ANDROID OS
1. Open-Source Platform
Android is an open-source operating system (OS) that promotes innovation and
collaboration among developers across the globe.
2. Customization
Users can tailor Android devices comprehensively, from home screen
layouts to installation of tailored ROMs, providing a bespoke and unique
experience.
3. Various Devices
Android is compatible with a wide range of devices, offering users a broader
selection of smartphones, tablets, and other gadgets one can choose from.
4. App Diversity
The Google Play Store boasts an extensive range of apps that meet
various user needs and preferences across different categories.

4. ADVANTAGES OF ANDROID OS
5. Multitasking Capabilities
Android supports highly effective and robust multitasking, allowing users to run
numerous applications simultaneously and switch between them smoothly.
6. Integration with Google Services
Android flawlessly incorporates a suite of Google services, including Gmail, Google Drive,
and Google Maps, augmenting connectivity and productivity.
7. Affordability
Android devices come in various price points, making the platform accessible to users with varying budgets.
8. Customizable Widgets
Android enables users to add widgets to their home screens, providing swift access to information and improving
overall usability.
9. Google Assitant
Google Assistant, Android’s built-in virtual assistant, offers voice-controlled assistance, assisting users in
performing tasks, getting information, and controlling their devices hands-free.

5. ADVANTAGES OF ANDROID OS
10. Notification Management
Android provides powerful notification management, enabling users to tailor and prioritize notifications for a simplified
and efficient user experience.
11. File System Access
Android offers users direct access to the device’s file system, making it easy to transfer data, manage files, and organize
content.
12. Open Development Community
The Android platform reaps benefits from a massive and active developer community fostering constant improvements,
updates, and the creation of innovative apps.

6. DISADVNATGES OF ANDROID OS
1. Fragmentation
The open-source nature of the Android OS leads to fragmentation, leading to diverse device manufacturers
using various versions of the operating system, causing compatibility issues and delayed updates.
2. Security Concerns
Android faces more security threats compared to its counterparts. Its open ecosystem makes it receptive
to malware, viruses, and malicious software.
3. Slow Software Updates
Android users often experience delays when receiving recent software updates, as manufacturers and carriers should
customize and test updates before making them available. That results in a need for uniformity across various
devices.
4. Inconsistent User Interface
The various range of Android devices leads to inconsistencies in the user interface. Developers find it challenging to
build applications that provide a consistent and smooth experience across different devices.

7. DISADVNATGES OF ANDROID OS
5. Battery Life Variability
Due to the adversity in optimizations (hardware and software) across various Android devices, users may
experience different levels of battery performance, with some devices struggling to maximize power
consumption effectively.
6. Compatibility Issues
Applications on the Android platform may not be maximized for all devices, resulting in compatibility issues that
can lead to glitches, crashes, or diminished functionality.
7. Lack of Standardization
Unlike iOS, the Android operating system lacks strict standardization across devices, resulting in variations in design,
hardware capabilities, and features, making it difficult for developers to build applications catering to a constant user
experience.
8. Limited Software Support
Older Android devices may need support for up-to-the-minute software updates and features, leaving users with obsolete
technology and potential security vulnerabilities.

8. DISADVNATGES OF ANDROID OS
9. Bloatware
Commonly called bloatware, numerous Android devices come pre-installed with unrequired
applications. It consumes storage space and can impact system performance as well.
10. Privacy Concerns
Android has faced disapproval for its data collection practices, raising privacy concerns among users who
may not be comfortable with the amount of personal information shared with Google and third-party
applications.

9. Key features of Android OS include extensive customization options, a wide
variety of app choices due to its open-source nature, and integration with
Google services
Key Android Features:
Customization: Users can heavily personalize their home screens, launchers, and device appearance
with various themes and widgets.
Open Source: Allows for a diverse range of device manufacturers and app developers, leading to a
wide selection of apps and price points.
Google Integration: Tight integration with Google services like Gmail, Google Maps, Google
Assistant, and Google Play Store.

10. ADVANTAGES OF IOS
1. Security
iOS is well-known for its robust security architecture, with features such as Face ID, Touch ID,
and stringent app store policies, providing users with a safe environment for data and privacy.
2. Optimized Hardware and Software Integration
Apple manages hardware and software aspects ensuring seamless integration, amplifying
performance, and user experience across all iOS devices.
3. App Store Quality Control
The strict App Store review process leads to a curated selection of unparalleled
quality apps, minimizing the risk of malware and ensuring a trustworthy user
experience.
4. Prompt Updates
Apple delivers prompt and consistent software updates to all supporting devices. It ensures users can access the newest
features, bug fixes, and security improvements.
5. Ease of Use
iOS is known for its user-friendly and intuitive interface, which makes it simple for users to navigate and
operate their devices without a steep learning curve.

11. ADVANTAGES OF IOS
6. Regular Hardware and Software Integration
iOS devices receive constant updates, fostering uniformity that ensures users on older devices reap the benefits of the
recent software features.
7. iMessage and FaceTime
Seamless integration of iMessage and FaceTime across iOS devices streamlines convenient and unmatched quality
communication, leading to a cohesive ecosystem.
8. Improved Performance
Apple’s optimization of hardware and software leads to seamless and effective performance, on older devices,
providing a constantly satisfying user experience.
9.Unified Ecosystem
iOS integration with other Apple devices and services, including iCloud, allows for a smooth experience
across diverse platforms, boosting accessibility and productivity.
10.Developer Support
The iOS development environment is powerful and is supported by a large and engaged developer community,
resulting in numerous top-quality applications customized for iOS devices.

12. DISVANTAGES OF IOS
1. Limited Customization
iOS limits users to a predefined set of customization options, restricting personalization compared to Android.
2. Closed Ecosystem
Apple’s closed ecosystem makes it demanding to incorporate iOS devices into non-Apple products and services smoothly.
3. Costly Hardware
Apple devices are usually more costly compared to their Android counterparts, making them less
accessible to budget-conscious consumers.
4. App Store Restrictions
The stringent App Store policies can obstruct app developers and restrict the availability of certain apps on iOS.
5. File Management
iOS has a more limited file management system, which makes it less intuitive and flexible for users looking for
greater control over their files.

13. 6. Dependency on iTunes
IOS has been dependent on iTunes for various tasks, which can be viewed as a drawback to Android’s
simple file management.
7. Closed NFC Access
While Android allows greater access to NFC functionality, iOS restricts its use mainly to
Apple Pay, limiting the potential for other innovative apps
8. Less Intuitive Sharing
Sharing files between various applications on the iOS operating system can be less intuitive compared to the
flawless sharing capabilities that Android offers.
9. Default Apps Limitations
iOS limits users from setting third-party applications as default. This OS restricts the
seamless integration of non-Apple services.
10. Restricted Device Choice
The limited range of device options of Apple may not cater to various user preferences and needs,
seeking a broader selection.
ADVANTAGES OF IOS

14. iOS is known for its seamless ecosystem integration across Apple devices, strong security and
privacy features, and a curated app store with high quality applications, often prioritizing
performance and user experience consistency across devices.
Key ios Features:
Seamless Ecosystem Integration: Smooth data syncing across Apple devices like iPhones, iPads, Macs, and
Apple Watches
Strict App Review Process: Ensures high quality and security of apps available on the App Store
Privacy Focus: Strong built-in privacy features and controls over data sharing
Performance Optimization: Known for optimized performance on Apple hardware
Face ID and Touch ID: Secure biometric authentication methods for unlocking devices and authorizing payments