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I believe you have seen a lot of articles about difference between Windows 8 and Windows 7. Now I summarize three major differences between them.  Hope it could make you become more familiar with two present popular Windows operating systems, Windows 8 and Windows 7.

Windows 8 provides four different versions, Windows RT, Windows 8 Standard, Windows 8 Professional and Windows 8 Enterprise. Windows RT is designed for tablet, and other three versions are available for PC

Up to now, a lot of people still think that Windows 8 is the upgrade version of Windows 7. Actually, it is not true. So whatÕs the difference between Windows 8 and Windows 7?

Windows RT will be installed in tablet or PC with ARM processors. And Windows 8 Enterprise is mainly in the face of enterprise and their employees, which bound to a large number of enterprise applications. Therefore, for general computer users, if they want to upgrade Windows 7 to Windows 8, Windows Standard and Pro are the best choice.

2^ndDifference: Design Difference between Windows 8 and Windows 7 

If you have tried to use Windows 8, you should know design of Windows 8 is so different from previous Windows systems that we may think it should not be Windows OS for computer.

1. Compared to Windows 7, Windows 8 preview keeps the similar layout of the traditional interface.

Status bar of desktop still keeps the Aero Glass Affection. And the default background takes Beta fish into use which couldnÕt show technology period feel.

2. Start button is cancelled in Windows 8 at last.

3. Windows 8 will split the Control sidebar in the left button. And the traditional left button of the desktop will become a quick entrance to Metro surface.

4. Compared with developer preview, the consumer preview of Windows 8 enlarges button in control sidebar, which makes touch-based operation convenient.

5. In Windows 7, the composite keys of Win and Tab let us know about the layout of 3D effect. But in Windows 8 consumer preview, the page switch mode of the keys combination changes.

6. In the design of Ribbon sidebar, Windows 8 consumer preview make options more easy-to-use and rich like Office, at the same time, the developer version will become easier to use too.

7. In Windows 8 consumer preview, when users are ready to delete something, the system will not give users a hint just like Windows 7 to make a final decision. Instead it will be made by Empty Recycle Bin. This improves effect of Windows system.

8. In Windows 8 consumer preview, the label page of external device, such as USB, connecting with computer is similar to Metro UI experience.  

9. During the process of copy and paste in Windows 8, computer user could decide suspend the process, which becomes more humanized than in Windows 7.

10. Windows 8 consumer preview improves task manager by integrating simplify with graphicalization.

Whatever you think of it, Windows 8 isnÕt just a new interface slapped on top of Windows 7. Windows 8 has seen a lot of security improvements, including an integrated antivirus, an application reputation system, and protection from boot-time rootkits. There are also quite a few low-level security improvements under the hood. Microsoft hasnÕt spelled out all of them, but Windows 8 manages memory in a more secure way and includes features that make security vulnerabilities harder to exploit.

Windows 8 finally includes an integrated antivirus program. ItÕs named Windows Defender, but the interface will be immediately familiar to anyone thatÕs ever used Microsoft Security Essentials Ð this is Microsoft Security Essentials with a new name. You can easily install any other antivirus you prefer and Windows Defender will be automatically disabled if another antivirus is running, but the integrated antivirus is a capable product. Best of all, this ensures that all Windows users will finally have antivirus protection out-of-the-box.

In Windows 8, antivirus products can start earlier in the boot-up process to scan the systemÕs drivers for malware. This helps protect against rootkits that start before the antivirus program and hide from it. Windows Defender starts earlier in the boot process out-of-the-box, and third-party antivirus vendors can also add the Early-Launch Anti-Malware (ELAM) feature to their products.

Previously used only in Internet Explorer, the SmartScreen filter is now implemented at the operating system level. It will be used to scan EXE files you download from Internet Explorer, Mozilla Firefox, Google Chrome, and other programs. When you download and double-click an EXE file, Windows will scan the file and send its signature to MicrosoftÕs servers. If the application is known-good, such as the installer for iTunes, Photoshop, or another popular program, Windows will allow it to run. If itÕs known-bad, perhaps if it contains malware, Windows will prevent it from running. If itÕs new and Windows doesnÕt know what it is, Windows will warn you and allow you to bypass the warning.

This feature should help less-experienced users from downloading and running malicious programs from the Internet. Even new pieces of malware will be detected by the SmartScreen filter as an unknown new program that should be approached with caution.

On new Windows 8 computers that use the UEFI firmware instead of the old-style BIOS, Secure Boot guarantees that only specially signed and approved software can run at boot. On current computers, malware could install a malicious boot loader that loads before the Windows boot loader, starting a boot-level rootkit (or Òboot kitÓ) before Windows even launches. The rootkit could then hide itself from Windows and antivirus software, pulling the strings in the background.

On Intel x86 PCs, youÕll be able to add your own security keys to the UEFI firmware, so you could even have your system boot only secure Linux boot loaders that youÕve signed.

5. Memory Management Improvements

Microsoft has made a lot of under-the-hood improvements to the way Windows 8 manages memory. When a security hole is found, these improvements can make the security hole harder or even impossible to exploit. Some types of exploits that function on earlier versions of Windows wouldnÕt function at all on Windows 8.

Microsoft hasnÕt spelled out all of these improvements, but they have mentioned a few:

Apps for Windows 8Õs new Modern interface (formerly known as Metro) are sandboxed and restricted in what they can do on your computer.

On the Windows desktop, applications had full access to your system. If you downloaded and ran a Windows game, it could install drivers on your system, read files from everywhere on your hard drive, and install malware on your computer. Even if programs run with limited credentials thanks to UAC, they typically install with Administrator privileges and can do anything they want during installation.

Windows 8 apps function more like web pages and mobile apps on other popular mobile platforms. When you install an app from the Windows Store, that app has limited access to your system. It canÕt run in the background and monitor all your keystrokes, logging your credit card number and online banking passwords like applications on the traditional Windows desktop can. It doesnÕt have access to every file on your system.

Apps for Windows 8Õs new Modern interface are also available only available through the Windows Store, which is more controversial. However, users canÕt install malicious Modern apps from outside the store. TheyÕd have to go through the Windows Store, where Microsoft has the ability to pull them if theyÕre discovered to be malicious.

Windows 8 is definitely more secure than Windows 7. An integrated antivirus and application reputation system, along with a tamed app ecosystem that replaces the wild-west nature of previous versions of Windows, will probably make the most difference for inexperienced users that may not have ran an antivirus or knew which applications were safe to install on previous versions of Windows. Low-level improvements to the way Windows manages memory will help everyone, even power users.

Security part refers to: 6 Ways Windows 8 is More Secure than Windows 7

• Windows 8 Security Knowledge Ð What You Should Know
• 10 General Secure Settings Options for Windows 8 
• Configure Windows 7 Security Settings and Deployment
• 10 New Features in Windows 8.1

 

Because of the tight relationship between BIOS and CMOS, they are recognized as the same program at most of time, just their name are different. Actually, they are different two things which are related with each other. So what is BIOS, CMOS? And what are the difference and relationship between BIOS and CMOS?

One: Concept Difference between BIOS and CMOS 

CMOS is Complementary Metal Oxide Semiconductor. Because of its characteristics of the read and write, CMOS is used to save data about computer parameters set in BIOS program on motherboard. So its main function is save data.

BIOS is one EPROM or EEPROM chip on computer motherboard. BIOS Setup program is stored in it, which saves important system information and system parameter.  

Actually, BIOS is Basic Input-Output system in microcomputer, whose content is integrated in a chip on microcomputer motherboard. The most important input and output program of microcomputer, system information setup, POST and bootstrap program are saved there.  

When computer is starting, motherboard will take a series check and test on systems and peripheral devices. If you set it Enabled, computer startup speed will improve.

2. Boot Up Floppy - Seek

When computer is starting, BIOS will check whether Floppy is available. If you choose Enabled, when BIOS find no floppy, it will prompt you that is wrong.

3. Boot Up NumLock Ð Status

Generally, the small keyboard in the right side of big keyboard is used as number keys default. If it is necessary, you can set it OFF, and small keyboard would become direction keys.

4. Security Option

There are two options between Security Option, if you set it as ÒSetupÓ, no password is needed to login computer, but password is needed to enter CMOS, which is set before. And only supervisor password could change parameters for CMOS. If you set it as ÒSystemÓ, you will need computer logon password, and only supervisor password could modify CMOS.

Two kinds of password settings are provided in CMOS for user, Supervisor/User Password). Follow the below:

Tips: When you set Security Option as ÒSystemÓ, you can type one of Supervisor password or User password to access Windows computer. And please remember back to main interface and press F10 and Enter to save these changes.

It is a programmable interface between software and hardware in microcomputer system. It makes application software functions appropriate link up to microcomputer hardware. The management on floppy, disk, CD-ROM, keyboard, displayer is based on BIOS system interrupt service program. And computer operator could call this program directly by accessing break point, such as INT5 and INT13 etc.

This program is used to set parameters for CMOSRAM. Just press boot key when you start computer and you will enter this program. And this process to set parameters for CMOS is also called BIOS settings.

When microcomputer is connected with power, POST will check equipment inside system. Once there is problem in check process, system prompt message will pops up for computer user.

After system POST completes, ROMBIOS will search for soft and hard disk drive, CD-ROM, Network Server according to setup sequence saved in CMOS settings. Read operational system boot record and give control privilege to boot record. Boot record will let system boot successfully.

Different from previous Windows operational systems, there are two main kinds of ways to login in to Windows 8, local accounts and Microsoft account.

Microsoft account is the special characteristic for Windows 8 and Windows 8.1. With it, computer user could access data and files in Windows 8 remotely. And just because of this feature, one more way is available for Windows 8 password reset.

Now this passage mainly introduces how to change Windows 8 logon way between local account and Microsoft account.

On Start Screen, you could see your account just singing into Windows 8. Click it and choose ÒSign outÓ option to turn to logon screen. Choose local user account or Microsoft account you want to login in to Windows 8 with.

For example, you change Windows 8 logon way from local user account to Microsoft account. Choose Microsoft account, generally taken with email address. Type in password and click OK.

Move the mouse to the right-upper side of window, choose Settings and select ÒChange PC SettingsÓ at the bottom side of window. On the PC settings window, click Users, you would see which kind of account you have used to login into Windows 8.

If you have signed in to Windows 8 with Microsoft account, there will be an option ÒSwitch to a local accountÓ.

 Click it and a window pops up. Current account password has to be typed in.



Click ÒNextÓ and ÒSign out and finishÓ, a new local account has been created and you can login in to Windows 8 with this new local account.