Learning objectives
Download
1 / 61

To learn the common secondary storage devices and - PowerPoint PPT Presentation


  • 739 Views
  • Uploaded on

LEARNING OBJECTIVES . To learn the common secondary storage devices and their basic characteristics. To learn the common input devices and their basic characteristics. To learn the common output devices and their basic characteristics.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'To learn the common secondary storage devices and' - flora


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Learning objectives l.jpg
LEARNING OBJECTIVES

  • To learn the common secondary storage devices and

  • their basic characteristics.

  • To learn the common input devices and their basic

  • characteristics.

  • To learn the common output devices and their basic

  • characteristics.

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

22


Secondary storage devices these storage devices are also input output devices l.jpg
SECONDARY STORAGEDEVICESThese storage devices arealso Input/Outputdevices.

28


Secondary storage devices l.jpg
Secondary Storage Devices

  • Secondary Storage

    • Stores large amounts of data, instructions, and information more permanently than main memory.

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


Hard drives e ide pata l.jpg
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 MBCache (buffer)

OLD TECHNOLOGY

$19 to $318

22


E ide pata bus connection l.jpg
E-IDE (PATA) BUS Connection

E-IDE cable connection from

drives to Motherboard.

4 drives

max.

22


Hard drives sata l.jpg
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)

750GB

$318

Additional Information

22


Hard drives sata7 l.jpg
Hard Drives (SATA)

Four SATA cable connections for connecting drives to Motherboard.

4 drives

max.

22


Cables sata vs eide l.jpg
CABLES (SATA VS EIDE)

(SATA) Device, Power

(PATA) Device, Power

22


Advantages sata vs pata l.jpg
ADVANTAGES (SATA VS PATA)

ADVANTAGES OF SATA OVER PATA:

1. FASTER

2. SMALLER CABLES AND CONNECTORS

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

3. LESS POWER CONSUMPTION

4. LOTS OF FUTURE IMPROVEMENTS.

5. ABOUT THE SAME RETAIL PRICE AS PATA.

22


Usb drives external l.jpg
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.

22


Hard drives of the future l.jpg
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>>


Usb drives external12 l.jpg
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."

22


Pocket usb drives external l.jpg
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.

22


Flash usb drives external l.jpg
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

22


Cd rom l.jpg
CD-ROM

  • CD-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

More Information

22


Cd r ecorder l.jpg
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


Compact disk readwrite l.jpg

40x /12x/48x

Compact Disk ReadWrite

650 - 800 MB

  • 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

22


Compact disk readwrite18 l.jpg

40x /12x/48x

Compact Disk ReadWrite

650 - 800 MB

  • HOW 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

22


Dvd read write dvd rw l.jpg

  • DVD – Digital Video Disk

  • DVD 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

40x /12x/48x

DVD Read-Write (DVD-RW)

4.7 GB

22


Digital video drive dvd l.jpg
Digital Video Drive (DVD)

  • DVD-ROMCD-ROM

  • Sides: one or two one

  • Layers: one or two one

  • Track pitch: .74 microns1.6 microns

  • Pit length: .40.83 microns

  • Near Future Storage

  • 17 GB

22


Dvd read write dvd rw21 l.jpg

40x /12x/48x

DVD Read-Write (DVD-RW)

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...

4.7 GB

650-800 MB

CD disk

DVD disk

22


Digital video drive l.jpg
Digital Video Drive

  • 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

22



Input l.jpg
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


Point of sale device pos magnetic strip barcode readers l.jpg
POINT OF SALE DEVICE (POS)MAGNETIC STRIP / BARCODE READERS

28



Keyboard l.jpg
KEYBOARD

Infrared Wireless Keyboard

28


Mouse trackball l.jpg
MOUSE/TRACKBALL

Mouse

Trackball

28


Drawing tablet l.jpg
DRAWING TABLET

Drawing Tablet

28


Game devices l.jpg
GAME DEVICES

Flight Yoke

Steering Wheel

Joy Stick

Game Pad

28



Fingerprint scanners l.jpg
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

28


Fingerprint scanners33 l.jpg
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.

28


Iris id scanners l.jpg
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.

28


Biokeyboard l.jpg
BIOKEYBOARD

Fingerprint

Smart Card

  • BIO-KEYBOARD

    • Security device

    • Fingerprint data and smart card data must match in

    • order to use computer.

28


Rfid radio frequency id l.jpg
RFID (RadioFrequencyID)

Transponder

Reader

  • 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.

28


Rfid radio frequency id37 l.jpg
RFID (Radio Frequency ID)

Mobile-Commerce Payment Mechanism with

Texas Instrument's RFID technology.

28


Rfid radio frequency id38 l.jpg
RFID (Radio Frequency ID)

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

28


Rfid radio frequency id39 l.jpg
RFID (Radio Frequency ID)

Corporations, government to track your every move.New book 'SPYCHIPS' sets out disturbing scenario using RFID technology

TI-RFID Web Site

Leading Journal on RFID

28


Rfid radio frequency id40 l.jpg
RFID (Radio Frequency ID)

Know this article

© 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.

28


Rfid radio frequency id41 l.jpg
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.

28


Rfid radio frequency id42 l.jpg
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.

28


Rfid radio frequency id43 l.jpg
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

28



Rfid radio frequency id45 l.jpg
RFID (Radio Frequency ID)

Play RFID-1 Radio Program

Play RFID-2-Implant

Play RFID-3-Sensor Demo

Play RFID-4-Door Latch

28


Hp scanner l.jpg
HP Scanner

  • Characteristics:

  • HP scanner

  • 1,200 dpi optical to

  • 999,999 dpi

  • interpolated

  • 36 bit color

  • USB

  • $59.00 to $499.00

28



Digital cameras l.jpg
DIGITAL CAMERAS

  • METHODS OF INPUT TO COMPUTER:

    • USB

    • Firewire

29


Micr device l.jpg
MICR Device

  • MICR

  • Magnetic Ink Character Recognition.

  • Used on checks.

30



Cathode ray tube monitor l.jpg
Cathode Ray Tube Monitor

Cathode Ray Tube -- CRT

Monitors of the Past & Present

31


Liquid crystal display lcd monitor l.jpg
Liquid Crystal Display (LCD) Monitor

  • 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

Monitors of the Present & Future

31


Computer projector l.jpg
COMPUTER PROJECTOR

  • COMPUTER PROJECTORS

  • 3 - 8 Pounds

  • $ 850-$3,500

31


Laser printer l.jpg
Laser Printer

  • 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.

32


Inkjet printer l.jpg
InkJet Printer

  • 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.

32


Inkjet printer56 l.jpg
InkJet Printer

  • 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

32


Miscellaneous items l.jpg
MISCELLANEOUSITEMS

30


Types of computer systems l.jpg
Types of Computer Systems

Personal Computers (PCs)

Small, inexpensive, often called microcomputers.

Workstations

Fit between high-end microcomputers and low-end midrange.

Network Computers

Used for accessing networks, especially the Internet.

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


Multimedia computer system l.jpg
Multimedia Computer System

  • Characteristics of Multimedia Computer:

  • Sound

  • Graphics

  • Text

  • Video

  • Even TV

37


Power backup l.jpg
POWER BACKUP

  • Power backup system

    • Used in case of power failure.

    • Pictured item runs for 16 minutes

    • $79 to $269.00

37


The end test next class l.jpg
THE ENDTest, Next class.

37


ad