Overview Of The Operating Systems Computer Science Essay

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Windows 8 has been reimagined to be all about your customers. Put what matters most right on their Start screens. They can get instant access to people, apps, sites and more, spend less time searching and more time doing. Windows 8 is smooth, intuitive, and designed to let them do what they want, the way they want.

Top things to know and show your customers

Start screen and tiles Windows 8 lets you personalize your Start screen with live tiles that highlight information for the things you care about most.

Amazing apps Windows 8 includes amazing, built-in apps that work together seamlessly.

Cloud connected Windows 8 connects your favorite services to your Microsoft account. You get immediate access to your personal content through SkyDrive and your apps.

Be more productive Windows 8 offers the fun of a tablet, with the productivity of a PC-the best of both worlds.

Windows 8 : It's ready for business.

•Customers get more done with tablet mobility and PC power, all in a single device.

•Customers get it done faster and more securely from virtually anywhere with enhanced Wi-Fi and mobile networking.

•From power on to power off, customers' devices are more secure with Trusted Boot.

•Windows 8 is designed to work alongside existing Windows 7 systems, apps, and peripherals

2) Explanation of the major components of the Operating Systems

Metro UI

Metro is an internal code name of a typography-based design language created by Microsoft, originally for use in Windows Phone. A key design principle of Metro is better focus on the content of applications, relying more on typography and less on graphics ("content before chrome"). Early uses of the Metro principles began as early as Microsoft Encarta 95 and MSN 2.0, and later evolved into Windows Media Center and Zune. Later the principles of Metro were included in Windows Phone, Microsoft's website, the Xbox 360 dashboard update, and Windows 8.

Windows To Go

Windows To Go is a feature in Windows 8 Enterprise that allows Windows 8 Enterprise to boot and run from mass storage devices such as USB flash drives and external hard disk drives. It is a fully manageable corporate Windows 8 environment.It is intended to allow enterprise administrators to provide users with an imaged version of Windows 8 that reflects the corporate desktop and as such is aimed at enterprises. Creation of Windows To Go drives is not supported by other Windows 8 editions. However, flash drives set up by Microsoft were distributed to those who attended their BUILD developer conference held in September 2011.

3) Explanation of unique features of the Operating Systems.

Tablet support

Windows 8 is the first version of the OS to support certain types of tablets: those with a low-energy consumption ARM processor, such as Microsoft's Surface, as well as a selection of devices from Asus, Lenovo, Dell and Samsung, which will be able to run the alternative version of the new OS, dubbed Windows RT. It could be the first step in a new direction for the Redmond-based company. According to Bill Gates himself, Windows and Windows Phone could be fused into one single platform.

An overhauled interface

Windows 8 pro brand new user interface scrolls horizontally to reveal new dynamic tiles for specific programs, apps, files and shortcuts. It is based on the interface already in use on the Windows Phone. The Start button is gone, and the new environment takes a bit of time to get used to.

The Windows Store's grand opening

Microsoft is launching its app store, which was built on the same model as its well established rival, the Mac App Store. Users will be able to download apps designed for Windows 8 pro that will be seemlessly integrated to the desktop. Fewer than 3,000 apps will be made available at Windows 8's launch, and developers will surely try to gauge the OS's potential before contributing to improve the selection. Microsoft remains rather optimistic on that front, going so far as to announce the figure of 100,000 apps available 90 days after the launch of Windows 8.

Internet Explorer 10

The new version of the much maligned browser will launch on the same day as the OS, which will of course carry it. Internet Explorer 10 promises better support with internet standards such as HTML5, CSS3, and touch controls. The browser will host Flash, but it will only work with a restricted list of websites and other special uses, so as not to affect the device's performance or security. Internet Explorer 10 was totally overhauled to support touch controls, just like Windows 8.

4) Discussion of the pros and cons of any suggested application software.


Common user experience across devices- The new UI will help merge the tablet and pcs to benefit from touch capabilities.

Windows To Go- Windows 8 pro will run from a usb drive even when older version of windows are installed on the host.

Push button reset-IT departments will be able to correct issue that currently require remaining a pc

New log in options-Windows 8 pro will enable you to log in using gestures on a picture.

Faster boot time- The boot process will takes 8 minutes.

Unified experience across devices -Microsoft claims that Windows 8 will offer a "no-compromise" experience on tablets, with tablets running Windows 8 pro offering the same functionality offering the same features as a PC version. With the variety of convertible tablet/pc hybrids shown at the launch, this will definitely improve productivity on-the-go. With Microsoft's Skydrive offering all the cloud storage needed, employees using tablets like the Surface will have an easy time getting adjusted to using Office 2013 on convertible PCs when away from the office.Also, once Windows 8 Phone devices are released, they will also offer security protocols that can coordinate with corporate Windows policies, offering more options to do work on the go.

Improved Security Protocols -The use of UEFI (Unified Extensible Firmware Interface) Secure Boot is a huge improvement over the old BIOS, as it only allows booting of operating systems components that have been digitally signed by the software vendor. This effectively eliminate malicious rootkits from being active, as they are usually started during the boot-up process, before any anti-malware processes have begun. Enterprises will find it crucial to enable this feature to protect their corporate data effectively.

Runs On Existing Architecture -IT managers will not have to worry about investing in expensive hardware to use Windows 8 pro, as it has been made to run on a wide range of architectures. According to Steven Sinofsky(President,Windows & Windows Live), "In building Windows 8 we set out to significantly reduce the overall runtime memory requirements of the core system"(MSDN Blog). He added that Windows 8 was designed to work on systems meeting requirements of Windows 7, and even older systems should be able to run it smoothly. Also, due to the efficient memory usage, power consumption in Windows 8 pro is much lesser than previous versions, Microsoft claims.


No start menu-Microsoft has pulled the start button off the legacy interface , complicating any windows 8 rollout in a corporate environment.

Need for massive training- This is such a revolution any version users will need a lot of training

Desktop Abandonment- Given windows 8 pro emphasis on mobile and touch ,the corporate desktop seems to be an of bought.

User-friendly on a desktop PC? -Let's face the fact. Most businesses are not going to move to touch-based systems anytime soon. And Windows 8 will not force that change either. Windows 8 and pro was designed with touch clearly in mind, and hence it performs awkwardly on a traditional desktop. Using your mouse to "slide" apps around and having to switch between desktop and "metro" screens constantly will be a gigantic pain point for corporate work.

5) Description of the user interface of the Operating Systems with some screen shots.

Start Screen

All the preceding versions of Windows were designed to immediately take you to the desktop after Windows logon. However, no longer such is the case in Windows 8, as whenever you sign in to your account, you're presented with an all new Start Screen that is designed to arrange all your apps as Tiles - yep, a term that sounds familiar, especially if you're a Windows Phone user. Your User Profile name appears at the top right of the screen, clicking which reveals further account-related options. Akin to Windows Phone, some of the tiles are dynamic - which means they swivel around various visual information such as news, podcasts etc.

Since Windows 8 fully supports touchscreen devices such as tabs and ultrabooks, these blocks provide better interaction via touch screen than selecting miniscule icons. One thing that didn't fancy us however is that, you may somehow end up making the Start Screen look cluttered later down the road. The reason being, almost all the apps that you install pin their own tile to the Start Screen, making it feel clunky and less ergonomic. The Start Screen is loaded with various stock apps, such as Calendar, Mail, People, Messaging, Desktop (yes, Desktop is an app now), Maps, SkyDrive etc., and is scrollable across left and right of the screen.


Clicking the miniscule (-) button at the bottom right zooms out the tiles, so that you can easily categorize the apps into groups. In order to group multiple apps in a container, right click the apps section and select Name group option from the bottom to give the selected group an appropriate name.

start screen groups

The bottom menu, which slides up upon right-clicking anywhere on the Start Screen, contains an All apps option that when clicked provides a list of all installed and system applications. While in Start Screen, you may access a couple of Tiles options by clicking Settings in the Charms Bar. It allows to toggle Administrative tools on/off and clear personal info regarding the tiles.

Charms Bar

Charms Bar is one of those features that makes Windows 8 stand-out from previous versions of Windows. It's been added to provide universal access to context-sensitive options. Moving the cursor to the top or bottom right of your desktop, or using Win+ C hotkey combination opens the charms bar at the right side of screen, containing options like Search (within the current app), Share (current items, such as news articles with contacts from Mail or People apps), Start (open the Start Screen), Devices (manage devices such as secondary monitors, printers), and Settings (related to the active app). Along with the bar, an information panel also appears at the bottom left area of the screen, showing you the current date and time, Wi-Fi connection and battery status.


The fact that each option of Charms Bar is context-sensitive greatly increases its usability. For instance, if you open Charms Bar in Windows Store, you can search the apps, share them with other people, and view its settings without opening any other dialog box. Having the options related to each app accessible directly from inside the app makes it easier for users to configure it according to their preferences.

Search Charms

Start Search

Start Search is like a detour to quickly access files or apps that you're looking for. You can either access it from Charms bar, or simply type an app, system settings or file name on Start Screen, to bring forward this menu. It lists down various categories to the right - including a list of apps. Your search results appear to the left, from where you can choose your desired item. It's worth mentioning here that if you right click an app from the list, further app related options are revealed at the bottom. These options include Unpin from Start, Pin to taskbar, Uninstall, Open new window, Run as administrator and Open file location.



Even though it's ripped down various notches, the good 'ol Desktop is still there (you can access it by clicking Desktop app tile from the Start Screen). It looks the same as it was before, with the absence of Windows Start Orb, thus entirely eliminating the Start Menu from existence. As Start Menu is replaced by the Start Screen, Microsoft decided to not include it altogether. So, the Desktop that we all knew and loved, doesn't feel the same as it used to in previous versions of Windows. If you hover the mouse pointer over the bottom left corner of the screen, you will see a Start Screen thumbnail preview, clicking which, takes you back to the Start Screen. Not much is already visible on Desktop, so you might need to fiddle around a bit to find some hidden functions, for instance, moving the mouse to the top or bottom corners to the right side of the screen reveals the Charms bar, a sleek bar that provides context-sensitive options like Search, Share, Start, Devices and Settings.


PC Settings

In the previous versions of Windows, users would open Control Panel to make system wide changes to installed hardware, connected peripherals and other major system components. Windows 8 still has the Control Panel, but a lot of new settings, as well as some old ones, have been shifted to a new system settings menu called "PC Settings".

In order to access PC Settings menu, open the Charms Bar, click Settings and select Change PC Settings from the lower right corner. It contains a number of configuration settings, organized into different categories. For instance, the Personalize category includes options related to the Lock Screen, Start Screen and Account Picture, allowing users to change the background image, select apps for notifications on lock screen and so on. Some of these settings are specifically added for tablets, while others are designed for PCs. Settings applied by a user can be synced with all Windows 8 machines using the same Microsoft Account, meaning that you can have the same experience on all Windows 8 devices.


The Devices category deals with the connected devices. The Wireless section contains toggles for Airplane mode and Wireless devices, the Ease of Access section includes contrast options, while the HomeGroup tab allows you to set permissions for sharing content with other homegroup members, such as Documents, Music, Pictures, Videos, Printers and Devices. In short, PC Settings offers a centralized systems console to let you easily personalize your accounts and set everything according to your preferences.

Screenshot (187)

6) Description of suitable environment to run the operating system

Windows 8 represents a significant evaluating milestone in windows development , principally to expand support to tablet devices and provide more unified experience across all of Microsoft's offerings: Pc,Tablet,Smarphones.

Windows Server 8 is the most cloud optimized operating system, providing choice and flexibility in configuring private, hybrid, and public cloud solutions

Processor: 1 gigahertz (GHz) or faster with support for PAE, NX, and SSE2 (more info)

RAM: 1 gigabyte (GB) (32-bit) or 2 GB (64-bit)

Hard disk space: 16 GB (32-bit) or 20 GB (64-bit)

Graphics card: Microsoft DirectX 9 graphics device with WDDM driver

7) Conclusion

OneTouch Ptd. Ltd company my request use windows 8 because building applications that target the new Windows 8 Metro platform. Microsoft has created a platform that allows you to develop using the language and design tool of your choice, implements complex interfaces in a simple way, and creates unprecedented interoperability between different applications. This coupled with new language features and a consistent experience that is easy to develop for the end user makes it a platform I believe most programmers will love.