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To learn the common secondary storage devices and


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To learn the common secondary storage devices and

  1. 1. LEARNING OBJECTIVES <ul><li>To learn the common secondary storage devices and </li></ul><ul><li>their basic characteristics. </li></ul><ul><li>To learn the common input devices and their basic </li></ul><ul><li>characteristics. </li></ul><ul><li>To learn the common output devices and their basic </li></ul><ul><li>characteristics. </li></ul><ul><li>4. To learn the types of computers by power and use. </li></ul>22
  2. 2. SECONDARY STORAGE DEVICES These storage devices are also Input/Output devices. 28
  3. 3. Secondary Storage Devices <ul><li>Secondary Storage </li></ul><ul><ul><li>Stores large amounts of data, instructions, and information more permanently than main memory. </li></ul></ul>Devices for secondary storage Magnetic tape Magnetic disks Compact Disk Read-Only CD-ROM CD-RW (Compact Disk-Read Write) Write Once Read Many - (WORM) DVD – Digital Video Disks RAID (Redundant Array of Inexpensive Disks) Flash memory Removable storage 22
  4. 4. Hard Drives (E-IDE = PATA) <ul><li>Hard drives </li></ul><ul><li>E-IDE = PATA </li></ul><ul><ul><li>Enhanced Integrated Drive Electronics </li></ul></ul><ul><ul><li>(PATA) </li></ul></ul><ul><ul><ul><li>Parallel Advanced Technology Attached. Very fast. </li></ul></ul></ul><ul><ul><li>Transfer Rate (Maximum) </li></ul></ul><ul><ul><ul><li>133 MB/S </li></ul></ul></ul><ul><ul><li>Capacity (Minimum/Maximum) </li></ul></ul><ul><ul><ul><li>10 - 750GB </li></ul></ul></ul><ul><ul><ul><li>Price:$19-$318 </li></ul></ul></ul><ul><ul><li>Access Time </li></ul></ul><ul><ul><ul><li>8-12 ms </li></ul></ul></ul><ul><ul><li>Maximum of 4 drives. </li></ul></ul><ul><ul><li>RPM </li></ul></ul><ul><ul><ul><li>Revolutions Per Minute </li></ul></ul></ul><ul><ul><ul><li>5400 to 7,200 </li></ul></ul></ul><ul><ul><li>2-16 MB Cache (buffer) </li></ul></ul>22 $19 to $318 OLD TECHNOLOGY
  5. 5. E-IDE (PATA) BUS Connection 22 E-IDE cable connection from drives to Motherboard. 4 drives max.
  6. 6. Hard Drives (SATA) <ul><li>Hard drives </li></ul><ul><li>SATA </li></ul><ul><ul><li>Serial Advanced Technology Attachment </li></ul></ul><ul><ul><li>Transfer Rate (Maximum) </li></ul></ul><ul><ul><ul><li>150MB/S TO 300MB/S </li></ul></ul></ul><ul><ul><li>Capacity (Maximum) </li></ul></ul><ul><ul><ul><li>40GB to 750GB </li></ul></ul></ul><ul><ul><li>Access Time </li></ul></ul><ul><ul><li>Price </li></ul></ul><ul><ul><ul><li>$31 to 318 </li></ul></ul></ul><ul><ul><ul><li>8-12 ms </li></ul></ul></ul><ul><ul><li>Number of Drives Supported </li></ul></ul><ul><ul><ul><li>One drive per port . </li></ul></ul></ul><ul><ul><li>RPM </li></ul></ul><ul><ul><ul><li>Revolutions Per Minute </li></ul></ul></ul><ul><ul><ul><li>5400 to 7,200 </li></ul></ul></ul><ul><ul><li>2 MB to 16MB Cache (buffer) </li></ul></ul>22 Additional Information 750GB $318
  7. 7. Hard Drives (SATA) 22 Four SATA cable connections for connecting drives to Motherboard. 4 drives max.
  8. 8. CABLES (SATA VS EIDE) 22 (SATA) Device , Power (PATA) Device , Power
  10. 10. USB drives (External) 22 <ul><li>USB External Hard drive </li></ul><ul><ul><li>INTERFACE </li></ul></ul><ul><ul><ul><li>USB 2.0 </li></ul></ul></ul><ul><ul><li>STORAGE </li></ul></ul><ul><ul><ul><li>80 GB TO 500 GB </li></ul></ul></ul><ul><ul><li>TRANSFER RATE </li></ul></ul><ul><ul><ul><li>60 MB/S </li></ul></ul></ul><ul><ul><li>PRICE </li></ul></ul><ul><ul><ul><li>$65 TO $251 </li></ul></ul></ul><ul><ul><li>NEED EXTERNAL TRANSFORMER. </li></ul></ul><ul><ul><li>TYPICALLY USED TO BACK UP FILES. </li></ul></ul>
  11. 11. Hard Drives of the Future <ul><li>Characteristics: </li></ul><ul><li>Company: SanDisk </li></ul><ul><li>Mostly for notebooks. </li></ul><ul><li>32GB flash memory </li></ul><ul><li>2,000,000 hours between failure </li></ul><ul><li>Access time: 0.12 milliseconds </li></ul><ul><li>Power: 0.4 to 1.0 watts </li></ul><ul><li>100 times faster than any hard drive for random access. </li></ul><ul><li>Uses older PATA </li></ul><ul><li>Cost: $600 </li></ul><ul><li>Main advantages: Fast, low failure rate, low power requirement, non-volatile, will replace hard drives in laptops, but can be used in desktops. </li></ul><<1.8 inches>>
  12. 12. USB drives (External) 22 <ul><li>USB External Hard drive </li></ul><ul><ul><li>BACKUP WITH NORTON GHOST </li></ul></ul><ul><ul><li>GHOST CAN BACKUP INDIVIDUAL FILES OR THE ENTIRE C: DRIVE IMAGE. </li></ul></ul><ul><ul><li>If your C: drive completely fails, using Ghost you can copy the complete C: drive image onto the new drive from the external drive that has the image, and go.... </li></ul></ul><ul><ul><li>Thus, in a few minutes your &quot;back in business.&quot; </li></ul></ul>
  13. 13. Pocket USB drives (External) 22 <ul><li>Pocket USB Drives </li></ul><ul><li>STORAGE </li></ul><ul><ul><li>5 GB TO 120 GB </li></ul></ul><ul><li>SIZE </li></ul><ul><ul><li>ONE INCH TO 2.5 INCHES. </li></ul></ul><ul><li>PRICE </li></ul><ul><ul><li>$60 TO $201 </li></ul></ul><ul><li>USED WHEN YOU NEED MORE STORAGE THAN A FLASH DRIVE CAN GIVE. </li></ul><ul><li>TRANSFER RATE </li></ul><ul><ul><li>16 MB/S TO 32 MB/S </li></ul></ul><ul><li>CACHE (BUFFER) SIZES </li></ul><ul><ul><li>4 MB TO 8 MB </li></ul></ul><ul><li>USE ROTATING MAGNETIC DISKS , JUST LIKE THE BIG EXTERNAL EIDE/SATA DRIVES. </li></ul>
  14. 14. Flash USB drives (External) 22 <ul><li>FLASH DRIVE ( USB ) </li></ul><ul><li>STORAGE </li></ul><ul><ul><li>128MB TO 16GB </li></ul></ul><ul><ul><li>USES FLASH MEMORY </li></ul></ul><ul><ul><li>IS NON-VOLITLE </li></ul></ul><ul><li>TRANSFER RATE </li></ul><ul><ul><li>14 MB/S TO 19 MB/S </li></ul></ul><ul><li>PRICE </li></ul><ul><ul><li>$15 TO $130 </li></ul></ul><ul><li>ALSO CALLED </li></ul><ul><ul><li>THUMB DRIVES </li></ul></ul><ul><ul><li>PENCIL DRIVES </li></ul></ul><ul><ul><li>KEYCHAIN DRIVES </li></ul></ul>
  15. 15. CD-ROM <ul><li>CD-ROMs ( Read Only Memory ) </li></ul><ul><li>Used to store software you purchase, music, movies </li></ul><ul><li>Compact Disk Read Only Memory </li></ul><ul><li>650 MB storage </li></ul><ul><li>56X Transfer rate (Max) </li></ul><ul><ul><li>(56 x 150 KBps ) </li></ul></ul><ul><ul><li>6,750-7,800 KBps transfer rate </li></ul></ul><ul><li>80-90 ms access time </li></ul><ul><li>$6 to $19 </li></ul>22 More Information
  16. 16. CD-R ecorder <ul><li>CD-Recorder </li></ul><ul><ul><li>Also called:a WORM </li></ul></ul><ul><ul><li>Write Once , Read Many </li></ul></ul><ul><ul><li>With a CD-ROM drive, you can only READ. </li></ul></ul><ul><ul><li>With a CD-R drive, you can WRITE once, and you can READ as many times as you want. </li></ul></ul><ul><li>Uses Ablative technique: </li></ul><ul><ul><li>Laser burns .83 micron pits into disk </li></ul></ul><ul><li>650 – 800 MB </li></ul>22
  17. 17. Compact Disk ReadWrite 22 <ul><li>CD- RW Drive </li></ul><ul><ul><li>TYPICAL SPECS: 52X32X52X </li></ul></ul><ul><ul><li>52x( Write first time) 32x( Rewrite ) 52x( Read ) </li></ul></ul><ul><ul><li>$28.00 to $45.00 </li></ul></ul><ul><ul><li>Speed multiplier with CDs: </li></ul></ul><ul><ul><ul><li>x = 150 KBp </li></ul></ul></ul>650 - 800 MB 40x /12x/48x
  18. 18. Compact Disk ReadWrite 22 650 - 800 MB <ul><li>HOW IT STORES DATA: </li></ul><ul><li>Uses a crystalline compound </li></ul><ul><ul><li>Heated then cooled : </li></ul></ul><ul><ul><ul><li>Becomes crystalline </li></ul></ul></ul><ul><ul><ul><ul><li>Reflects laser ( 1bit ) </li></ul></ul></ul></ul><ul><ul><li>Heated to a higher temperature then cooled : </li></ul></ul><ul><ul><ul><li>Becomes a amorphous </li></ul></ul></ul><ul><ul><ul><ul><li>Does not reflect laser ( 0 bit ) </li></ul></ul></ul></ul>More Information 40x /12x/48x
  19. 19. DVD Read-Write (DVD-RW) 22 4.7 GB 40x /12x/48x <ul><li>DVD – Digital Video Disk </li></ul><ul><li>DVD SPEEDS: </li></ul><ul><ul><li>DVD-R/RW (16x8x16x) </li></ul></ul><ul><ul><li>DVD- Write 16x, DVD- ReWrite 8x, DVD- Read 16x </li></ul></ul><ul><li>PRICE: </li></ul><ul><ul><li>$45 to $200 </li></ul></ul><ul><li>Speed multiplier with DVDs: </li></ul><ul><ul><li>x = 1.3 MBps </li></ul></ul>
  20. 20. Digital Video Drive (DVD) 22 <ul><li>DVD-ROM CD-ROM </li></ul><ul><li>Sides: one or two one </li></ul><ul><li>Layers: one or two one </li></ul><ul><li>Track pitch: .74 microns 1.6 microns </li></ul><ul><li>Pit length: .40 .83 microns </li></ul><ul><li>Near Future Storage </li></ul><ul><li>17 GB </li></ul>
  21. 21. DVD Read-Write (DVD-RW) 22 4.7 GB Smaller Pits, Narrower Track Pitch Inside On the inside, a DVD is totally different. Its pits are half the size of CD pits ( 0.4µm vs. 0.83µm ), and it's tracks are spaced about twice as close together ( 0.74µm vs. 1.6µm ).   See following image...   CD disk DVD disk 650-800 MB 40x /12x/48x
  22. 22. Digital Video Drive 22 <ul><li>DVD Applications </li></ul><ul><li>Music </li></ul><ul><ul><li>Higher sampling rate </li></ul></ul><ul><ul><li>More bits per sample </li></ul></ul><ul><li>Movies </li></ul><ul><li>Replacement for VHS tapes </li></ul><ul><li>80 cents vs $2.20 to manufacture </li></ul><ul><li>Software distribution </li></ul><ul><li>Computer system backup </li></ul>
  23. 23. Input Devices 28
  24. 24. Input <ul><li>Data entry </li></ul><ul><ul><li>The process by which human-readable data is converted into a machine-readable form. </li></ul></ul><ul><li>Data input </li></ul><ul><ul><li>The process of transferring machine-readable data into the computer system. </li></ul></ul><ul><li>Source data automation </li></ul><ul><ul><li>Capturing and editing data where the data is originally created and in a form that can be directly input to a computer. </li></ul></ul>27
  26. 26. TOUCH SCREEN 28
  27. 27. KEYBOARD 28 Infrared Wireless Keyboard
  28. 28. MOUSE/TRACKBALL 28 Mouse Trackball
  29. 29. DRAWING TABLET 28 Drawing Tablet
  30. 30. GAME DEVICES 28 Steering Wheel Flight Yoke Joy Stick Game Pad
  31. 31. TIME CLOCK 28
  32. 32. FINGERPRINT SCANNERS 28 <ul><li>Fingerprint Scanner </li></ul><ul><ul><li>$32.00 and up </li></ul></ul><ul><ul><li>ID < 1 second </li></ul></ul><ul><ul><li>Used with smart card </li></ul></ul><ul><li>Fingerprint Scanner </li></ul><ul><ul><li>$32.00 and up </li></ul></ul><ul><ul><li>ID < 1 second </li></ul></ul><ul><ul><li>Used with smart card </li></ul></ul>
  33. 33. FINGERPRINT SCANNERS 28 Say goodbye to password hassles. Now you can log on to your computer and your favorite websites with the touch of your finger, without having to remember all those passwords - simply place your finger on the receiver whenever a password or username is required. Easy-to-use software makes replacing passwords with your fingerprint a breeze. The Registration Wizard helps you register fingerprints for each user. When you first visit a site that requires a password, just touch the Fingerprint Reader with your registered finger, enter your data, and then click OK. When you browse back to that website, you can simply log on with your fingerprint. You can also use the Fingerprint Reader to quickly switch between Windows user accounts without closing programs and files - and each user's personal content stays personal.
  34. 34. IRIS ID SCANNERS 28 <ul><li>IRIS Identification Scanner </li></ul><ul><ul><li>$206.00 </li></ul></ul><ul><ul><li>Less than 3 seconds to authorize. </li></ul></ul><ul><ul><li>The human iris is absolutely unique, </li></ul></ul><ul><ul><li>even between twins or an individual's right </li></ul></ul><ul><ul><li>and left eyes . </li></ul></ul>
  35. 35. BIOKEYBOARD 28 Fingerprint Smart Card <ul><li>BIO-KEYBOARD </li></ul><ul><ul><li>Security device </li></ul></ul><ul><ul><li>Fingerprint data and smart card data must match in </li></ul></ul><ul><ul><li>order to use computer. </li></ul></ul>
  36. 36. RFID ( Radio Frequency ID ) 28 <ul><li>How RFID works: </li></ul><ul><li>The transponder is energized by the reader. The transponder then sends the reader information that is stored in it, such as a product ID code. </li></ul>Transponder Reader
  37. 37. RFID (Radio Frequency ID) 28 Mobile-Commerce Payment Mechanism with Texas Instrument's RFID technology.
  38. 38. RFID (Radio Frequency ID) 28 Best Buy will start using RFID in January or February of 2006
  39. 39. RFID (Radio Frequency ID) 28 Corporations, government to track your every move . New book ' SPYCHIPS ' sets out disturbing scenario using RFID technology Leading Journal on RFID TI-RFID Web Site
  40. 40. RFID (Radio Frequency ID) 28 © 2005 &quot; Can a microscopic tag be implanted in a person's body to track his every movement? There's actual discussion about that. You will rule on that – mark my words – before your tenure is over.&quot; – Sen. Joseph Biden, to Judge John Roberts at Supreme Court confirmation hearings, Sept. 12, 2005. Imagine a world of no more privacy, where hidden radio frequency scanners will be constantly pointed at you, wirelessly reading microchips embedded in your clothing, shoes, bank cards and even your own flesh. It's the ultimate in &quot;Big Brother,&quot; and according to the explosive new book &quot;SPYCHIPS: How Major Corporations and Government Plan to Track your Every Move with RFID,&quot; companies including Wal-Mart , Target , Gillette , Proctor & Gamble , Kraft, IBM and even the U.S. government have all invested in making such a scenario a reality within the next decade. Know this article
  41. 41. RFID (Radio Frequency ID) 28 Welcome to the world of Radio Frequency Identification, or RFID, where tiny computer chips smaller than a grain of sand will track everyday objects – and even people – keeping tabs on everything you own and everywhere you go. While it sounds far-fetched and futuristic, it's already here and documented in &quot;SPYCHIPS,&quot; written by Katherine Albrecht and Liz McIntyre. These two privacy advocates have uncovered extraordinarily detailed plans to use this new technology to watch U.S. citizens. Revelations in the book include IBM's blueprint for a &quot;Person Tracking Unit&quot; that scans the RFID tags on unwitting members of the public as they move through retail stores, airports, train stations, elevators, libraries, theaters and even public restrooms. They intend to follow your every move.
  42. 42. RFID (Radio Frequency ID) 28 Nokia is developing an RFID-reader cell phone that could be used to scan people and inventory their belongings as they walk past on the street. Bank of America has cooked up a &quot;Crowd Identification Device&quot; to scan RFID tags on the things people are wearing and carrying to pinpoint, identify and bombard them with targeted audio advertising messages . There is even an RFID armband that delivers a dose of paralyzing medication or an electroshock to subdue individuals. These are just a few of the patents and patent applications revealed in &quot;SPYCHIPS&quot; that major corporations and the U.S. government have planned. The book chronicles efforts to keep these plans a secret , revealing the contents of confidential industry documents and outlining plans to &quot;pacify&quot; the public, co-opt public officials and develop spin to ensure the adoption of the RFID infrastructure.
  43. 43. RFID (Radio Frequency ID) 28 The book also discusses the industry's more underhanded tactics, like a foiled plot by the Grocery Manufacturers of America to mount a smear campaign against author Katherine Albrecht. As the authors were researching the book, illegal efforts were made by unknown persons to gather intelligence on them, including siphoning telephone records and targeting bank records. Someone even contacted their friends and family to probe for information, the authors say. Hundreds of millions of dollars have already been invested in what global corporations are calling the hottest new technology since the bar code – and billions more are in the balance. Wal-Mart's top suppliers are already on board with RFID tracking, and high-level former government officials like Tommy Thompson and Tom Ridge have joined the boards of major RFID companies. In fact, Thompson, former secretary of health and human services, now sits on the board of the VeriChip human implant company and has publicly suggested RFID implants for us all. &quot; Spychips could strip away our last shreds of privacy and usher in a nightmare world of total surveillance – to keep us all on Big Brother's very short leash,&quot; say the authors
  44. 44. RFID (Radio Frequency ID) 28
  45. 45. RFID (Radio Frequency ID) 28 Play RFID-1 Radio Program Play RFID-2-Implant Play RFID-3-Sensor Demo Play RFID-4-Door Latch
  46. 46. HP Scanner 28 <ul><li>Characteristics: </li></ul><ul><li>HP scanner </li></ul><ul><li>1,200 dpi optical to </li></ul><ul><li>999,999 dpi </li></ul><ul><li>interpolated </li></ul><ul><li>36 bit color </li></ul><ul><li>USB </li></ul><ul><li>$59.00 to $499.00 </li></ul>
  47. 47. A PC Equipped with a Computer Camera 29
  48. 48. DIGITAL CAMERAS 29 <ul><li>METHODS OF INPUT TO COMPUTER: </li></ul><ul><ul><li>USB </li></ul></ul><ul><ul><li>Firewire </li></ul></ul>
  49. 49. MICR Device <ul><li>MICR </li></ul><ul><li>Magnetic Ink Character Recognition. </li></ul><ul><li>Used on checks. </li></ul>30
  50. 50. Output Devices 28
  51. 51. Cathode Ray Tube Monitor 31 Monitors of the Past & Present Cathode Ray Tube -- CRT
  52. 52. Liquid Crystal Display (LCD) Monitor 31 Monitors of the Present & Future <ul><li>Samsung 912T </li></ul><ul><li>19 Inch LCD </li></ul><ul><li>700-1 contrast ratio (truer colors) </li></ul><ul><li>250 cd/m2 (picture brightness) </li></ul><ul><ul><li>cd=Standard unit of luminance is candela per square meter (cd/m2). </li></ul></ul><ul><ul><li>candela= one candles luminance on an area of 1 square meter. </li></ul></ul><ul><li>1280 x 1024 pixels (resolution) </li></ul><ul><li>180 degree viewing area </li></ul><ul><li>Scanning frequency </li></ul><ul><ul><li>Horizontal 30-81 kHz </li></ul></ul><ul><ul><li>Vertical 56-75 kHz </li></ul></ul><ul><li>Built-in power; no need for </li></ul><ul><li>wall-wart. </li></ul><ul><li>$199 to $419 </li></ul>More Info
  53. 53. COMPUTER PROJECTOR 31 <ul><li>COMPUTER PROJECTORS </li></ul><ul><li>3 - 8 Pounds </li></ul><ul><li>$ 850-$3,500 </li></ul>
  54. 54. Laser Printer 32 <ul><li>Typical Characteristics: </li></ul><ul><li>600 to 1,200 dpi (dots per inch) </li></ul><ul><li>6 to 30 ppm </li></ul><ul><li>(pages per minute) </li></ul><ul><li>$89 to $399 </li></ul><ul><li>FAR CHEAPER TO OPERATE </li></ul><ul><li>THAN INKJETS . </li></ul>
  55. 55. InkJet Printer 32 <ul><li>Ink is infused with electrically charged particles. </li></ul><ul><li>Ink is heated, ink bubbles form, cool and collapse, shooting ink droplets out the nozzle toward the paper. </li></ul><ul><li>The spray is deflected horizontally and vertically by electrically charged deflection plates. </li></ul>
  56. 56. InkJet Printer 32 <ul><li>Canon Pixma iP4200 </li></ul><ul><ul><li>600 by 600 dots/inch (black&white) </li></ul></ul><ul><ul><li>9,600 by 2,400 dots/inch (color) </li></ul></ul><ul><ul><li>$79.00-$130 </li></ul></ul><ul><ul><li>Color speed: 20 pages/min </li></ul></ul><ul><ul><li>USB 2.0 </li></ul></ul>
  58. 58. Types of Computer Systems Personal Computers (PCs) Small, inexpensive, often called microcomputers. Network Computers Used for accessing networks, especially the Internet. Workstations Fit between high-end microcomputers and low-end midrange. Midrange Computers Size of a three drawer file cabinet and accommodates several users at one time. Mainframe Computers Large and powerful, shared by hundreds concurrently. Supercomputers Most powerful with fastest processing speeds. 33
  59. 59. Multimedia Computer System <ul><li>Characteristics of Multimedia Computer: </li></ul><ul><li>Sound </li></ul><ul><li>Graphics </li></ul><ul><li>Text </li></ul><ul><li>Video </li></ul><ul><li>Even TV </li></ul>37
  60. 60. POWER BACKUP 37 <ul><li>Power backup system </li></ul><ul><ul><li>Used in case of power failure. </li></ul></ul><ul><ul><li>Pictured item runs for 16 minutes </li></ul></ul><ul><ul><li>$79 to $269.00 </li></ul></ul>
  61. 61. THE END Test, Next class . 37