Unit_04: Peripherals Flashcards

1
Q
Device: Fixed hard disk
R/W: ?
Speed: ?
Media Capacity: ?
Media Removable: ?
Cost/Mb: ?
A
Device: Fixed hard disk
R/W
fast
Media Capacity: High to very High
Media Removable: No
Cost/Mb: Low
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2
Q
Device: Removable hard disk
R/W: ?
Speed: ?
Media Capacity: ?
Media Removable: ?
Cost/Mb: ?
A
Removable hard disk
R/W
Medium to fast
Capacity: High
Removable:  Yes
Cost/Mb: Medium to high
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3
Q
Device: CD - ROM
R/W: ?
Speed: ?
Media Capacity: ?
Media Removable: ?
Cost/Mb: ?
A
CD-ROM
Read Only
Medium
Capa: Low
Removable: Yes
Cost: Low
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4
Q
Device: CD-/+RW
R/W: ?
Speed: ?
Media Capacity: ?
Media Removable: ?
Cost/Mb: ?
A
CD-/+RW
R/W
Medium
Capa: Low
Yes
Cost: Low
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5
Q
Device: DVD-ROM
R/W: ?
Speed: ?
Media Capacity: ?
Media Removable: ?
Cost/Mb: ?
A
DVD-ROM
Read only
Med
Capa: Med
Yes
CostL: Low
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6
Q
Device: DVD-/+RW
R/W: ?
Speed: ?
Media Capacity: ?
Media Removable: ?
Cost/Mb: ?
A
DVD-/+RW
R/W
Med
Capa: Med
Yes
Cost: Low
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7
Q
Device: Magnetic tape
R/W: ?
Speed: ?
Media Capacity: ?
Media Removable: ?
Cost/Mb: ?
A
Magnetic tape
R/W
Slow to Med
Capa: High to very High
Yes
Cost: Low
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8
Q
Device: Flash drive
R/W: ?
Speed: ?
Media Capacity: ?
Media Removable: ?
Cost/Mb: ?
A
Flash drive
R/W
Med
Capa: Low to Med
Yes
Cost: Med
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9
Q
Type: Ink-jet
Speed:
Text Quality:
Graphics Capability: 
Color Quality:
Cost:
A
Type: Ink-jet
Speed: Med to fast
Text Quality: Good to Excel
Graphics Capability: Good to Excel
Color Quality: Good to very good
Cost: Low
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10
Q
Type: Laser
Speed:
Text Quality:
Graphics Capability:
Color Quality:
Cost:
A
Type: Laser
Speed: Med to very fast
Text Quality: Excel
Graphics Capability: Good to Excel
Color Quality: Good in color laser printers
Cost: Med to High
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11
Q
Type: Thermal Transfer
Speed:
Text Quality:
Graphics Capability:
Color Quality:
Cost:
A
Type: Thermal Transfer 
Speed: Med to Fast
Text Quality: Excel
Graphics Capability: Good to Excel 
Color Quality: Good to Superior
Cost: Med to High
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12
Q
Type: Solid Ink 
Speed:
Text Quality:
Graphics Capability:
Color Quality:
Cost:
A
Type: Solid Ink
Speed: Med to Fast
Text Quality: Excel
Graphics Capability: Good to Excel
Color Quality: Good
Cost: Med to High
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13
Q
Type: Electro-static 
Speed:
Text Quality:
Graphics Capability:
Color Quality:
Cost:
A
Type: Electro-static 
Speed: Slow to Fast
Text Quality: Fair to Good
Graphics Capability: Fair to Good
Color Quality: Fair to Good
Cost: Low to High
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14
Q

What is Currie Munce’s main aim

A

Build bigger storage

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15
Q

How quickly areal density of hard disks increase 1990s

A

doubled every 18 months

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16
Q

How long magnetic recording technology continue to make rapid advances in capacity?

A

5-10 years (From March 200)

17
Q

problem he predict for magnetic storage

A

A phenomenon called Superparamagnetism threatens to make density packed bits unstable

18
Q

Predicted limit for discrete bit magnetic storage capacity

A

10 terabits per square inch (1 terabits = 1000 gigabits)

19
Q

What storage technologies might replace current magnetic systems

A

Atomic force microscopy (AFM) and holographic storage

20
Q

Advantage of holographic storage being three-dimensional ?

A

‘pages’ of data can be superimposed on a single volume

21
Q

What improvements are predicted due to the fast access rates and transfer times of holographic storage ?

A

lead to improved network searches, video on demand, high-end servers, enterprise computing, and supercomputing

22
Q

What is predicted to be the most important high capacity removable storage media in the next 10 years

A

CD-ROMs and DVDs

23
Q

What method of software distribution is likely to replace optical disks ?

A

online delivery

24
Q

Big Blue

25
Areal density
The data capacity of a storage device measured in bits per square inch
26
Moore's law
Prediction that the number of transistors that can be incorporated into a processor chip will be doubled every 18 months
27
Superparamagnetism
A phenomenon that threatens to make densely packed bits unstable in magnetic storage devices
28
Terabit
1000 gigabits
29
AFM
Atomic force microscopy
30
Angstrom
The approx radius of an atom
31
Predicted maximum storage of density of AFM is 400 gigabits per square inch (TRUE/FALSE)
TRUE
32
First computer to use tape storage devices
Univac 1