to learn the common secondary storage devices and

61
1. To learn the common secondary storage devices and their basic characteristics. 2. To learn the common input devices and their basic characteristics. 3. To learn the common output devices and their basic characteristics. 4. To learn the types of computers by power and use. LEARNING OBJECTIVES 22

Upload: flashdomain

Post on 21-Jun-2015

357 views

Category:

Documents


1 download

TRANSCRIPT

Page 1: To learn the common secondary storage devices and

1. To learn the common secondary storage devices and their basic characteristics.

2. To learn the common input devices and their basiccharacteristics.

3. To learn the common output devices and their basiccharacteristics.

4. To learn the types of computers by power and use.

LEARNING OBJECTIVES

22

Page 2: To learn the common secondary storage devices and

SECONDARY STORAGEDEVICES

These storage devices arealso Input/Output

devices.

28

Page 3: To learn the common secondary storage devices and

Secondary Storage Devices

• Secondary Storage Stores large amounts of data, instructions,

and information more permanently than main memory.

Devices for secondary storageMagnetic tapeMagnetic disksCompact Disk Read-Only CD-ROMCD-RW (Compact Disk-Read Write) Write Once Read Many - (WORM)DVD – Digital Video DisksRAID (Redundant Array of Inexpensive Disks)

Flash memoryRemovable storage

22

Page 4: To learn the common secondary storage devices and

Hard Drives (E-IDE = PATA)

Hard drives• E-IDE = PATA

Enhanced Integrated Drive Electronics

(PATA) Parallel Advanced Technology

Attached. Very fast. Transfer Rate (Maximum)

133 MB/S Capacity (Minimum/Maximum)

10 - 750GB Price:$19-$318

Access Time 8-12 ms

Maximum of 4 drives. RPM

Revolutions Per Minute 5400 to 7,200

2-16 MB Cache (buffer)

22

$19 to $318

OLD TECHNOLOGY

Page 5: To learn the common secondary storage devices and

35

E-IDE (PATA) BUS Connection

22

E-IDE cable connection fromdrives to Motherboard.

4 drivesmax.

Page 6: To learn the common secondary storage devices and

Hard Drives (SATA)Hard drives

• SATA Serial Advanced Technology

Attachment Transfer Rate (Maximum)

150MB/S TO 300MB/S Capacity (Maximum)

40GB to 750GB Access Time Price

$31 to 318 8-12 ms

Number of Drives Supported One drive per port.

RPM Revolutions Per Minute 5400 to 7,200

2 MB to 16MB Cache (buffer)22Additional Information

750GB

$318

Page 7: To learn the common secondary storage devices and

37

Hard Drives (SATA)

22

Four SATA cable connections for connecting drives to Motherboard.

4 drivesmax.

Page 8: To learn the common secondary storage devices and

38

CABLES (SATA VS EIDE)

22

(SATA) Device, Power (PATA) Device, Power

Page 9: To learn the common secondary storage devices and

39

ADVANTAGES (SATA VS PATA)

22

ADVANTAGES OF SATA OVER PATA:1. FASTER2. SMALLER CABLES AND CONNECTORS

a. Small cables aid air flow inside the computer. Keeps parts cooler, thus they last longer.

3. LESS POWER CONSUMPTION4. LOTS OF FUTURE IMPROVEMENTS.5. ABOUT THE SAME RETAIL PRICE AS

PATA.

Page 10: To learn the common secondary storage devices and

22

USB drives (External)

USB External Hard drive• INTERFACE

• USB 2.0• STORAGE

• 80 GB TO 500 GB• TRANSFER RATE

• 60 MB/S• PRICE

• $65 TO $251• NEED EXTERNAL TRANSFORMER.• TYPICALLY USED TO BACK UP FILES.

Page 11: To learn the common secondary storage devices and

Hard Drives of the Future

Characteristics:•Company: SanDisk•Mostly for notebooks.•32GB flash memory•2,000,000 hours between failure•Access time: 0.12 milliseconds•Power: 0.4 to 1.0 watts•100 times faster than any hard drive for random access.•Uses older PATA •Cost: $600 •Main advantages: Fast, low failure rate, low power requirement, non-volatile, will replace hard drives in laptops, but can be used in desktops.

<<1.8 inches>>

Page 12: To learn the common secondary storage devices and

22

USB drives (External)USB External Hard drive

• BACKUP WITH NORTON GHOST

• GHOST CAN BACKUP INDIVIDUAL FILES OR THE ENTIRE C: DRIVE IMAGE.• 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....Thus, in a few minutes your "back in business."

Page 13: To learn the common secondary storage devices and

22

Pocket USB drives (External)Pocket USB Drives• STORAGE

• 5 GB TO 120 GB• SIZE

• ONE INCH TO 2.5 INCHES.• PRICE

•$60 TO $201• USED WHEN YOU NEED MORE STORAGE THAN A

FLASH DRIVE CAN GIVE.• TRANSFER RATE

•16 MB/S TO 32 MB/S• CACHE (BUFFER) SIZES

•4 MB TO 8 MB• USE ROTATING MAGNETIC DISKS, JUST LIKE THE BIG EXTERNAL EIDE/SATA DRIVES.

Page 14: To learn the common secondary storage devices and

22

Flash USB drives (External)FLASH DRIVE (USB)•STORAGE

•128MB TO 16GB•USES FLASH MEMORY•IS NON-VOLITLE

•TRANSFER RATE• 14 MB/S TO 19 MB/S

•PRICE• $15 TO $130

•ALSO CALLED•THUMB DRIVES•PENCIL DRIVES•KEYCHAIN DRIVES

Page 15: To learn the common secondary storage devices and

CD-ROMCD-ROMs (Read Only Memory)

• Used to store software you purchase, music, movies

• Compact Disk Read Only Memory

• 650 MB storage

• 56X Transfer rate (Max) (56 x 150 KBps) 6,750-7,800 KBps transfer

rate

• 80-90 ms access time

• $6 to $19

22More Information

Page 16: To learn the common secondary storage devices and

CD-Recorder

• CD-Recorder• Also called:a WORM• Write Once, Read Many• With a CD-ROM drive, you

can only READ.• With a CD-R drive, you can

WRITE once, and you can READ as many times as you want.

• Uses Ablative technique:• Laser burns .83 micron pits

into disk• 650 – 800 MB

22

Page 17: To learn the common secondary storage devices and

Compact Disk ReadWrite

22

CD-RW Drive• TYPICAL SPECS: 52X32X52X • 52x(Write first time) 32x(Rewrite) 52x(Read)•$28.00 to $45.00•Speed multiplier with CDs:

•x = 150 KBp

650 - 800 MB

Page 18: To learn the common secondary storage devices and

Compact Disk ReadWrite

22

650 - 800 MBHOW IT STORES DATA:•Uses a crystalline compound

•Heated then cooled: •Becomes crystalline

•Reflects laser (1bit)•Heated to a higher temperature then cooled:

•Becomes a amorphous •Does not reflect laser (0 bit)

More Information

Page 19: To learn the common secondary storage devices and

DVD Read-Write (DVD-RW)

22

4.7 GB

DVD – Digital Video DiskDVD SPEEDS:

•DVD-R/RW (16x8x16x)•DVD-Write 16x, DVD-ReWrite 8x, DVD-Read 16x

PRICE:•$45 to $200

Speed multiplier with DVDs:•x = 1.3 MBps

Page 20: To learn the common secondary storage devices and

Digital Video Drive (DVD)

22

DVD-ROM CD-ROM•Sides: one or two one•Layers: one or two one•Track pitch: .74 microns 1.6 microns•Pit length: .40 .83 microns

Near Future Storage•17 GB

Page 21: To learn the common secondary storage devices and

DVD Read-Write (DVD-RW)

22

4.7 GB

Smaller Pits, Narrower Track Pitch InsideOn 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 disk650-800 MB

Page 22: To learn the common secondary storage devices and

Digital Video Drive

22

DVD Applications•Music

•Higher sampling rate•More bits per sample

•Movies•Replacement for VHS tapes•80 cents vs $2.20 to manufacture•Software distribution•Computer system backup

Page 23: To learn the common secondary storage devices and

Input Devices

28

Page 24: To learn the common secondary storage devices and

Input

• Data entry The process by which human-readable data

is converted into a machine-readable form.

• Data input The process of transferring machine-

readable data into the computer system.

• Source data automation Capturing and editing data where the data is

originally created and in a form that can be directly input to a computer.

27

Page 25: To learn the common secondary storage devices and

28

POINT OF SALE DEVICE (POS)

MAGNETIC STRIP / BARCODE READERS

Page 26: To learn the common secondary storage devices and

28

TOUCH SCREEN

Page 27: To learn the common secondary storage devices and

28

KEYBOARD

Infrared Wireless Keyboard

Page 28: To learn the common secondary storage devices and

28

MOUSE/TRACKBALL

Mouse Trackball

Page 29: To learn the common secondary storage devices and

28

DRAWING TABLET

Drawing Tablet

Page 30: To learn the common secondary storage devices and

28

GAME DEVICES

Steering Wheel Flight Yoke

Joy Stick Game Pad

Page 31: To learn the common secondary storage devices and

28

TIME CLOCK

Page 32: To learn the common secondary storage devices and

28

FINGERPRINT SCANNERS

Fingerprint Scanner• $32.00 and up• ID < 1 second•Used with smart card

Fingerprint Scanner• $32.00 and up• ID < 1 second• Used with smart card

Page 33: To learn the common secondary storage devices and

28

FINGERPRINT SCANNERS

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.

Page 34: To learn the common secondary storage devices and

28

IRIS ID SCANNERS

IRIS Identification Scanner• $206.00• Less than 3 seconds to authorize.• The human iris is absolutely unique, even between twins or an individual's right and left eyes.

Page 35: To learn the common secondary storage devices and

28

BIOKEYBOARD

Fingerprint

Smart Card

BIO-KEYBOARD•Security device•Fingerprint data and smart card data must match in order to use computer.

Page 36: To learn the common secondary storage devices and

28

RFID (Radio Frequency ID)

How RFID works:• 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.

Transponder

Reader

Page 37: To learn the common secondary storage devices and

28

RFID (Radio Frequency ID)

Mobile-Commerce Payment Mechanism with Texas Instrument's RFID technology.

Page 38: To learn the common secondary storage devices and

28

RFID (Radio Frequency ID)

Best Buy will start using RFID in January or February of 2006

Page 39: To learn the common secondary storage devices and

28

RFID (Radio Frequency ID)

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

Page 40: To learn the common secondary storage devices and

28

RFID (Radio Frequency ID)

© 2005 WorldNetDaily.com "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."

– 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 "Big Brother," and according to the explosive new book "SPYCHIPS: How Major Corporations and Government Plan to Track your Every Move with RFID," 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

Page 41: To learn the common secondary storage devices and

28

RFID (Radio Frequency ID)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 "SPYCHIPS," 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 "Person Tracking Unit" 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.

Page 42: To learn the common secondary storage devices and

28

RFID (Radio Frequency ID)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 "Crowd Identification Device" 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 "SPYCHIPS" 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 "pacify" the public, co-opt public officials and develop spin to ensure the adoption of the RFID infrastructure.

Page 43: To learn the common secondary storage devices and

28

RFID (Radio Frequency ID)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. "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," say the authors

Page 44: To learn the common secondary storage devices and

28

RFID (Radio Frequency ID)

Page 45: To learn the common secondary storage devices and

28

RFID (Radio Frequency ID)

Play RFID-1 Radio ProgramPlay RFID-2-ImplantPlay RFID-3-Sensor DemoPlay RFID-4-Door Latch

Page 46: To learn the common secondary storage devices and

HP Scanner

28

Characteristics:•HP scanner•1,200 dpi optical to•999,999 dpi interpolated•36 bit color•USB•$59.00 to $499.00

Page 47: To learn the common secondary storage devices and

A PC Equipped with a Computer Camera

29

Page 48: To learn the common secondary storage devices and

DIGITAL CAMERAS

29

METHODS OF INPUT TO COMPUTER:•USB•Firewire

Page 49: To learn the common secondary storage devices and

MICR Device

MICR•Magnetic Ink Character Recognition.•Used on checks.

30

Page 50: To learn the common secondary storage devices and

Output Devices

28

Page 51: To learn the common secondary storage devices and

Cathode Ray Tube Monitor

31Monitors of the Past & Present

Cathode Ray Tube -- CRT

Page 52: To learn the common secondary storage devices and

Liquid Crystal Display (LCD) Monitor

31Monitors of the Present & Future

Samsung 912T• 19 Inch LCD• 700-1 contrast ratio (truer colors)• 250 cd/m2 (picture brightness)

•cd=Standard unit of luminance is candela per square meter (cd/m2).•candela= one candles luminance on an area of 1 square meter.

•1280 x 1024 pixels (resolution)•180 degree viewing area•Scanning frequency

•Horizontal 30-81 kHz•Vertical 56-75 kHz

• Built-in power; no need for wall-wart.• $199 to $419

More Info

Page 53: To learn the common secondary storage devices and

COMPUTER PROJECTOR

31

COMPUTER PROJECTORS•3 - 8 Pounds• $ 850-$3,500

Page 54: To learn the common secondary storage devices and

Laser Printer

32

Typical Characteristics:• 600 to 1,200 dpi (dots per inch)• 6 to 30 ppm (pages per minute)• $89 to $399• FAR CHEAPER TO OPERATE

THAN INKJETS.

Page 55: To learn the common secondary storage devices and

InkJet Printer

32

• Ink is infused with electrically charged particles.• Ink is heated, ink bubbles form, cool and collapse, shooting ink droplets out the nozzle toward the paper.• The spray is deflected horizontally and vertically by electrically charged deflection plates.

Page 56: To learn the common secondary storage devices and

InkJet Printer

32

Canon Pixma iP4200

•600 by 600 dots/inch (black&white)•9,600 by 2,400 dots/inch (color)•$79.00-$130•Color speed: 20 pages/min•USB 2.0

Page 57: To learn the common secondary storage devices and

MISCELLANEOUSITEMS

30

Page 58: To learn the common secondary storage devices and

Types of Computer Systems

Personal Computers (PCs)Small, inexpensive, often called microcomputers.

Network ComputersUsed for accessing networks, especially the Internet.

WorkstationsFit 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

Page 59: To learn the common secondary storage devices and

Multimedia Computer System

Characteristics of Multimedia Computer:•Sound•Graphics•Text•Video•Even TV

37

Page 60: To learn the common secondary storage devices and

POWER BACKUP

37

Power backup system•Used in case of power failure.•Pictured item runs for 16 minutes•$79 to $269.00

Page 61: To learn the common secondary storage devices and

THE END

Test, Next class.

37