Secondary

1

• Secondary
• Storage

2
Tape
Floppy
Magnetic
Disk
Hard
Storage
CD-ROM
CD-R
Optical
CD-RW
3
Tape
Floppy
Magnetic
Disk
Hard
Storage
CD-ROM
CD-R
Optical
Erasable
4

• Magnetic Tape

5
Tape
Floppy
Magnetic
Disk
Hard
Storage
CD-ROM
CD-R
Optical
Erasable
6

• Floppy Disk

7
Floppy Disk
8

• Floppy Disk

9
Tape
Floppy
Magnetic
Disk
Hard
Storage
CD-ROM
CD-R
Optical
Erasable
10

• Hard Disks

11

• Hard Disks

12

• Hard Disks

13

• Hard Disks

14

• Hard Disks

15

• Hard Disks

16
Tape
Floppy
Magnetic
Disk
Hard
Storage
CD-ROM
CD-R
Optical
Erasable
17

• CD-ROM

1 disk - 1 surface
18

• CD-ROM

Magnified x 2,500
19

• One CD-ROM can store up to 650 megabytes which
  is about the same amount of data as

20

• 260,000 pages of text
• 19,000 pages of images scanned _at_ 300 x 300 dpi
• 74 minutes of video
• 74 minutes of CD quality sound
• 465 high density 3.5 diskettes
• 90 hours or almost 4 days at 28,800 baud

21

• So what can be done with this enormous capacity?

22
By FRANK GREVE Knight-Ridder

• Text only

WASHINGTON - Until recently, the
governments 50 million monthly phone bill
ran to more than a mil- lion pages and
ended up boxed in a southern Illi- nois
warehouse. But in a development both
marvelous and omi- nous, those bills are now
available on six shiny CD-ROM discs.
Government bosses and investigators can identify
in 18 seconds - and without a court order - the
date, time, and duration of every long distance
call made from hundreds of thousands of federal
phones.
TELEPHONE RECORDS
23
Americas phonebook on CD-ROM Over 81 million
listings on five CD-ROMs. Find anyone, anywhere
as quickly as you can type in a name, address,
or even phone number. You can get a complete
listing with phone number, address, city, state,
and zip code. You can then auto dial the number
or print out a list or even mailing labels.

28.95

• Text only

24

• Graphics only

25

• Graphics only

4 years ago!!!
26

• Sound only

27

• Text
• and
• Graphics

28

• Multi-media

29
MULTIMEDIA
... in personal computing, software and
applications that combine
30
MULTIMEDIA
... in personal computing, software and
applications that combine text,
31
MULTIMEDIA
... in personal computing, software and
applications that combine text, high quality
graphics,
32
MULTIMEDIA
... in personal computing, software and
applications that combine text, high quality
graphics, sound ,
33
MULTIMEDIA
... in personal computing, software and
applications that combine text, high quality
graphics, sound , and animation or video.
34
MPC Level 3- Specifications

• 75 MHz pentium computer - 8 megabytes of RAM
• 540 megabyte hard drive
• CD-ROM (quad speed)
• SVGA Video monitor (640x480x16)
• 16 bit sound card with 3 watts per channel
  speakers
• MPEG 1 video playback in a 320 x 240 window _at_ 30
  fps
• Wavetable synthesis playback of MIDI files

35
Tape
Floppy
Magnetic
Disk
Hard
Storage
CD-ROM
CD-R
Optical
Erasable
36
Tape
Floppy
Magnetic
Disk
Hard
Storage
CD-ROM
CD-R
Optical
Erasable
37

• Performance

38
Volume
Floppy

39
Volume
Floppy
Hard
40
Volume
Floppy
Hard Optical
41
Volume
Floppy
Hard Optical
Speed
Floppy
42
Volume
Floppy
Hard Optical
Speed
Floppy
Optical
43
Volume
Floppy
Hard Optical
Speed
Floppy
Optical Hard
44

• As of last year, DVDs are now being sold.
  They store data seven times more densely than
  CD-ROMs and on both sides.

650 megabytes x 14 9.1 gigabytes!
45

• This is accomplished by using a higher density.

46
This section is finished