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Oxford IT > Unit_04: Peripherals > Flashcards

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

A

IBM

25
Q

Areal density

A

The data capacity of a storage device measured in bits per square inch

26
Q

Moore’s law

A

Prediction that the number of transistors that can be incorporated into a processor chip will be doubled every 18 months

27
Q

Superparamagnetism

A

A phenomenon that threatens to make densely packed bits unstable in magnetic storage devices

28
Q

Terabit

A

1000 gigabits

29
Q

AFM

A

Atomic force microscopy

30
Q

Angstrom

A

The approx radius of an atom

31
Q

Predicted maximum storage of density of AFM is 400 gigabits per square inch (TRUE/FALSE)

A

TRUE

32
Q

First computer to use tape storage devices

A

Univac 1

Oxford IT (6 decks)

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