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2010
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December
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- Power Buzzer
- Power Buzzer
- How Make Simple Battery Isolator
- How Make Simple Battery Isolator
- Overclocking
- Overclocking
- Try...Super Fast Shutdown
- Try...Super Fast Shutdown
- Simple Flaher Circuit Diagram (24V)
- New Extreme Keyboard
- New Extreme Keyboard
- New High Quality Printers
- New High Quality Printers
- Apple iOS Vs Google ANDROID
- Apple iOS Vs Google ANDROID
- Google Launches Google’s ebookstore
- Google Launches Google’s ebookstore
- Blinking LED Circuit Diagram
- How Restore Missing Folder without Tools
- How Restore Missing Folder without Tools
- Did You Know..???? Most sophisticated computer T...
- Did You Know..???? Most sophisticated computer T...
- TIPS for Computer fast and stable
- TIPS for Computer fast and stable
- WHAT Is Blu-ray Disc...??
- WHAT Is Blu-ray Disc...??
- The 2011 Computer Technology Preview...!
- The 2011 Computer Technology Preview...!
- Wow ...LAtest Technology Intel predicts 10GHz chip...
- Wow ...LAtest Technology Intel predicts 10GHz chip...
- Download Free Windows 7 Harry Potter Themes
- Download Free Windows 7 Harry Potter Themes
- Beware Worm Spread via spam on Facebook and MySpace
- Beware Worm Spread via spam on Facebook and MySpace
- Backup Your drivers with DriverMax
- Backup Your drivers with DriverMax
- How Disable hibernation and remove hiberfil.sys
- How Disable hibernation and remove hiberfil.sys
- How Fix NTLDR is missing error on Windows
- How Fix NTLDR is missing error on Windows
- Introduction to Android
- Introduction to Android
- Repair CD/DVD ROOM and Troubleshoting
- Repair CD/DVD ROOM and Troubleshoting
- Microsoft Releases Research Site HTML5
- Microsoft Releases Research Site HTML5
- Hiding IP Address By SwitchProxy
- Hiding IP Address By SwitchProxy
- Conducting Remote Desktop Connection With TeamViewer
- Conducting Remote Desktop Connection With TeamViewer
- Disable Autorun On USB
- Disable Autorun On USB
- Trusting Password: Network Authentication
- Trusting Password: Network Authentication
- To Ignorant Others With Netbus
- To Ignorant Others With Netbus
- How to Get Many Visitors Blog / Web Site Free Goog...
- How to Get Many Visitors Blog / Web Site Free Goog...
- JDownloader, Free Download Manager
- JDownloader, Free Download Manager
- Download AVG Antivirus Free Edition 2011 (Offline ...
- Download AVG Antivirus Free Edition 2011 (Offline ...
- Winstep Nexus, Docking System For Windows
- Winstep Nexus, Docking System For Windows
- Provide Variety Of Effects To Photos By FunPhotoBo...
- Provide Variety Of Effects To Photos By FunPhotoBo...
- Download Free McAfee Internet Security 2011
- Download Free McAfee Internet Security 2011
- UltraCopier, Enhance Copy Function In Windows
- UltraCopier, Enhance Copy Function In Windows
- Change File Format Online
- Change File Format Online
- Reading Books & Magazines Online With GooReader
- Reading Books & Magazines Online With GooReader
- Fishbowl, Up Client Application
- Fishbowl, Up Client Application
- Fishbowl, Up Client Application
- Backup And Restore Backup Data With EASEUS Todo
- Backup And Restore Backup Data With EASEUS Todo
- Software Cooler ( CPU Idle )
- Software Cooler ( CPU Idle )
- Firefox Vs Internet Explorer
- Firefox Vs Internet Explorer
- VOIP phone system working
- VOIP phone system working
- Now is VOIP Phone era
- Now is VOIP Phone era
- How GPS Receivers Work
- How GPS Receivers Work
- How File Compression Works ...?
- How File Compression Works ...?
- Duplicate Website and run offline
- Duplicate Website and run offline
- Install Windows From USB Flasdisk
- Install Windows From USB Flasdisk
- How To Reset Printer Canon MP258
- How UPC Bar Codes Work ( Read BARCOCE)
- How UPC Bar Codes Work ( Read BARCOCE)
- Know Your PC and Save your Money (Diagnose PC)
- Know Your PC and Save your Money (Diagnose PC)
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December
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CONTACT US
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Blog Archive
-
▼
2010
(297)
-
▼
December
(155)
- Power Buzzer
- Power Buzzer
- How Make Simple Battery Isolator
- How Make Simple Battery Isolator
- Overclocking
- Overclocking
- Try...Super Fast Shutdown
- Try...Super Fast Shutdown
- Simple Flaher Circuit Diagram (24V)
- New Extreme Keyboard
- New Extreme Keyboard
- New High Quality Printers
- New High Quality Printers
- Apple iOS Vs Google ANDROID
- Apple iOS Vs Google ANDROID
- Google Launches Google’s ebookstore
- Google Launches Google’s ebookstore
- Blinking LED Circuit Diagram
- How Restore Missing Folder without Tools
- How Restore Missing Folder without Tools
- Did You Know..???? Most sophisticated computer T...
- Did You Know..???? Most sophisticated computer T...
- TIPS for Computer fast and stable
- TIPS for Computer fast and stable
- WHAT Is Blu-ray Disc...??
- WHAT Is Blu-ray Disc...??
- The 2011 Computer Technology Preview...!
- The 2011 Computer Technology Preview...!
- Wow ...LAtest Technology Intel predicts 10GHz chip...
- Wow ...LAtest Technology Intel predicts 10GHz chip...
- Download Free Windows 7 Harry Potter Themes
- Download Free Windows 7 Harry Potter Themes
- Beware Worm Spread via spam on Facebook and MySpace
- Beware Worm Spread via spam on Facebook and MySpace
- Backup Your drivers with DriverMax
- Backup Your drivers with DriverMax
- How Disable hibernation and remove hiberfil.sys
- How Disable hibernation and remove hiberfil.sys
- How Fix NTLDR is missing error on Windows
- How Fix NTLDR is missing error on Windows
- Introduction to Android
- Introduction to Android
- Repair CD/DVD ROOM and Troubleshoting
- Repair CD/DVD ROOM and Troubleshoting
- Microsoft Releases Research Site HTML5
- Microsoft Releases Research Site HTML5
- Hiding IP Address By SwitchProxy
- Hiding IP Address By SwitchProxy
- Conducting Remote Desktop Connection With TeamViewer
- Conducting Remote Desktop Connection With TeamViewer
- Disable Autorun On USB
- Disable Autorun On USB
- Trusting Password: Network Authentication
- Trusting Password: Network Authentication
- To Ignorant Others With Netbus
- To Ignorant Others With Netbus
- How to Get Many Visitors Blog / Web Site Free Goog...
- How to Get Many Visitors Blog / Web Site Free Goog...
- JDownloader, Free Download Manager
- JDownloader, Free Download Manager
- Download AVG Antivirus Free Edition 2011 (Offline ...
- Download AVG Antivirus Free Edition 2011 (Offline ...
- Winstep Nexus, Docking System For Windows
- Winstep Nexus, Docking System For Windows
- Provide Variety Of Effects To Photos By FunPhotoBo...
- Provide Variety Of Effects To Photos By FunPhotoBo...
- Download Free McAfee Internet Security 2011
- Download Free McAfee Internet Security 2011
- UltraCopier, Enhance Copy Function In Windows
- UltraCopier, Enhance Copy Function In Windows
- Change File Format Online
- Change File Format Online
- Reading Books & Magazines Online With GooReader
- Reading Books & Magazines Online With GooReader
- Fishbowl, Up Client Application
- Fishbowl, Up Client Application
- Fishbowl, Up Client Application
- Backup And Restore Backup Data With EASEUS Todo
- Backup And Restore Backup Data With EASEUS Todo
- Software Cooler ( CPU Idle )
- Software Cooler ( CPU Idle )
- Firefox Vs Internet Explorer
- Firefox Vs Internet Explorer
- VOIP phone system working
- VOIP phone system working
- Now is VOIP Phone era
- Now is VOIP Phone era
- How GPS Receivers Work
- How GPS Receivers Work
- How File Compression Works ...?
- How File Compression Works ...?
- Duplicate Website and run offline
- Duplicate Website and run offline
- Install Windows From USB Flasdisk
- Install Windows From USB Flasdisk
- How To Reset Printer Canon MP258
- How UPC Bar Codes Work ( Read BARCOCE)
- How UPC Bar Codes Work ( Read BARCOCE)
- Know Your PC and Save your Money (Diagnose PC)
- Know Your PC and Save your Money (Diagnose PC)
-
▼
December
(155)
Sunday, December 19, 2010
Hardisk Computer
Hard disks were invented in the 1950s. They started as large disks up to 20 inches in diameter holding just a few megabytes. They were originally called "fixed disks" or "Winchesters" (a code name used for a popular IBM product). They later became known as "hard disks" to distinguish them from "floppy disks." Hard disks have a hard platter that holds the magnetic medium, as opposed to the flexible plastic film found in tapes and floppies.
At the simplest level, a hard disk is not that different from a cassette tape. Both hard disks and cassette tapes use the same magnetic recording techniques described in How Tape Recorders Work. Hard disks and cassette tapes also share the major benefits of magnetic storage -- the magnetic medium can be easily erased and rewritten, and it will "remember" the magnetic flux patterns stored onto the medium for many years.
In the next section, we'll talk about the main differences between casette tapes and hard disks.
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- schema electronic
- New circuits and/or links are added regularly as a resource for beginners, hobbyists, engineers, inventors and consultants. Let us know what is missing or if you have a circuit to include in this collection.
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