Explanation of hard disk capacity | Lenovo Y560P, Y460P guide

Explanation of hard disk capacity

Dear user,

While using your computer, you may find that the nominal hard disk capacity indicated is somewhat different from the disk capacity displayed by the operating system. For example, a nominal 40GB hard disk will appear as less than 40GB in the operating system. This discrepancy is not an error in hard disk installation nor any other problem, but a normal phenomenon of computers. This phenomenon is primarily due to the following reasons:

I.Different standards used by the manufacturer and operating system when calculating hard disk capacity

Hard disk manufacturers use a radix of 1000, i.e., 1G = 1,000MB, 1MB = 1,000KB, 1KB = 1,000 bytes. However, when identifying hard disk capacity, operating systems use a radix of 1024, i.e., 1GB = 1,024MB, 1MB = 1,024KB, 1KB = 1,024 bytes. The standard adopted by your computer is that of the hard disk manufacturers. Since the standards adopted by the hard disk manufacturer and operating system are different, the hard disk capacity displayed by the operating system will be different from the nominal hard disk capacity.

For example, if the hard disk is nominally X G, even when it is completely

empty, the capacity displayed by the operating system will be: X × 1000 × 1000 × 1000/ (1024 × 1024 × 1024) ≈ X × 0.931 G

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Lenovo Y560P, Y460P manual Explanation of hard disk capacity

Contents

Lenovo IdeaPad Y460p/Y560p First Edition September Copyright Lenovo Respective Users Explanation of hard disk capacity Page Page Contents Contents Appendix C. Lenovo limited Appendix F. Features124 126 Important safety information Important safety information„ Read this first Iii Important safety information Unpack Important safety information Working place Important safety information On using Important safety information Vii Important safety information Service and upgrades Viii Getting to know your computer „ IdeaPad Y460p „ IdeaPad Y560p Getting to know your computer Speakers Power button Getting to know your computer IntegratedCamera Lenovo SlideNav RJ-45 port Left-side viewUSB port Right-side view „ IdeaPad Y460p „ IdeaPad Y560p Only Y560p AC power Getting to know your computer USB portESATA/USB Combo port ExpressCard Slot Y560p Optical drive Integrated wireless device switch Front view Bottom view „ IdeaPad Y560p Battery pack CentralProcessing Unit CPU/ Memory Compartment Hard disk drive „ Connect to the power Install the battery packLearning the basics „ Read the manuals „ Configure the operating system „ Turn on the computerLearning the basics Putting your computer into sleep state „ Shutting down your computer „ Checking battery status Using AC adapter and battery„ Charging the battery „ Removing the battery pack „ Handling the battery Using the touchpad Left click button Right click button „ Gestures Pinch zoomTwo-Finger Scrolling Rotating Learning the basics Three-Finger Flick Using the keyboard „ Numeric keypad „ Function key combinations Fn + Special keys and buttons OneKey Rescue System button Learning the basics Lenovo SlideNav bar Learning the basics Cap Sensor buttons OneKey Theater II button System status indicators Securing your computer „ Attaching a security lock not supplied „ Using VeriFace „ Using passwords Connecting external devices „ Using media cards not supplied Learning the basics Inserting a media card Removing a media card „ Connecting a Bluetooth device specific models only „ Connecting a universal serial bus USB deviceEnabling Bluetooth communications To change the GPU, do the following Using the Internet Wired connection „ Software configuration Using the Internet„ Hardware connection Cable Wireless connection Wi-Fi „ Using Wi-Fi/WiMax specific models only Enabling wireless connectionSoftware configuration Hardware connection OneKey Rescue System OneKey Rescue System„ Introduction OneKey Rescue System OneKey Rescue System Troubleshooting Frequently Asked Questions Troubleshooting Where are the recovery discs? What can I do if the backup process fails? Troubleshooting Display problems Problems on changing graphics processing unit GPU Computer is on Password problem Forgot my password Troubleshooting Keyboard problems Sleep or hibernation problems Computer does not return from sleep mode and does not work Troubleshooting Computer screen problems Sound problems Hard disk drive problem Troubleshooting Battery problemsStartup problem Troubleshooting OneKey Rescue System problems Other problems Connected external Replacing the battery Upgrading and replacing devices Upgrading and replacing devices Replacing memory Upgrading and replacing devices Upgrading and replacing devices Upgrading and replacing devices Replacing the hard disk drive Handling a hard disk drive Upgrading and replacing devices Upgrading and replacing devices Upgrading and replacing devices Upgrading and replacing devices Appendix A. Getting help and service Appendix A. Getting help and service Getting help on the Web Appendix A. Getting help and service Appendix A. Getting help and service Getting help around the world Appendix B. Use and care information „ Be careful about where and how you workCaring for your computer „ Notice of static-electricity Appendix B. Use and care information „ Be gentle with your computer „ Carry your computer properly „ For outdoor use „ Handle storage media and drives properly „ Take care in setting passwords „ Data safety„ Other important tips Appendix B. Use and care information Accessibility and comfort „ Ergonomic information „ What if you are traveling? „ Questions about vision? Maintenance „ General tips for maintenance Appendix B. Use and care information „ Cleaning the cover of your computer „ Cleaning your computer keyboard „ Cleaning your computer display Appendix C. Lenovo limited warranty „ What this warranty covers „ What your service provider will do to correct problems „ How to obtain warranty serviceAppendix C. Lenovo limited warranty Information „ Replacement of a product or part „ Your additional responsibilities „ Use of personal information „ What this warranty does not cover „ Limitation of liability „ Dispute resolution „ Other rights „ European Economic Area EEA „ Lenovo Turkey address Lenovo Technology B.V. Turkiye Istanbul Subesi Warranty information Productor machine type Country or region Purchase „ Types of warranty service Customer Replaceable Unit CRU Service Courier or Depot Service Appendix C. Lenovo limited warranty On-site ServiceCustomer Carry-In or Mail-In Service Product Exchange Service Appendix D. Customer replaceable units CRUs Appendix D. Customer replaceable units CRUs Appendix E. Notices 100 Appendix E. Notices „ Export classification notice 101 Energy Star model information 102 103 Windows „ Wireless interoperability 104 „ Usage environment and your health 105 „ Safety information related to Mobile Broadband 106 107 „ Products with television tuner options installed „ Note to Catv system installerTV tuner information Y560p only 108 „ Example of antenna grounding 109 110 Following notice applies to all countries and regions „ Federal Communications Commission FCC Statement Electronic emissions notices111 „ Industry Canada Class B Emission Compliance Statement 112 „ German Class B Compliance Statement „ Avis de conformité à la réglementation d’Industrie Canada113 114 „ European Union Compliance Statement Class B Compliance 115 116 „ Korea Class B „ Japan Compliance Statement for Power line Harmonics117 „ General recycling statement Weee and recycling statements118 EU Weee statements 119 Japan recycling statements 120 „ Disposing of a Lenovo Computer Components 121 122 123 Appendix F. Features and Specifications 124Machine Type 20076/4395 IdeaPad Y560p 20077/4397 Form Factor Y460p Appendix F. Features and Specifications Ports 125 Trademarks 126 Index 127 128 Index 129 Do not Return IT to the Store New World. New Thinking.TM