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JS Terminology > 220-1101 Hardware 3.3 > Flashcards

220-1101 Hardware 3.3 Flashcards

1
Q

What is a HDD?

A

Hard Disk Drive(HDD). Are a form of mass storage device.

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2
Q

What is a Mass Storage Device?

A

Non-volatile storage device that holds the data when the system is powered down (GB or TB).

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3
Q

Types of Mass Storage?

A

Internal, and External.

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4
Q

Internal mass storage device.

A

Device that is placed inside the computer case or tower. Includes, hard disk drives, solid state devices, optical drives.

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5
Q

External mass storage device

A

Device that is placed outside the computer case or tower and connected to an external port. Includes external USB hard drive, or an eSATA drive.

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6
Q

Mass Storage Sizes

A

2.5in drive, 3.5in drives(these are reserved for internal HDDS and SDDs), and 5.25in drive(Reserved for optical drives, backup tape drives, and floppy disc drives.

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7
Q

Parts of a Hard Disk Drive(HDD)

A

Platter, Spindle, Read/Write Head, and Actuator.

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8
Q

Seeking and Retrieving data on a HDD?

A

Movement of the actuator and the read/write head to read data. Speed that is measured in revolutions per minute(RPM) gives better drive performance.

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9
Q

Hard Disk Drive Speeds

A

5400 RPM(Slowest Model), 7200 RPM(Faster performance), 10,000 RPM(High-performance gaming PCs), 15,000 RPM(Highest RPM, most expensive, don’t see a lot 15,000 hard drives

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10
Q

HDD Buffer Size

A

Internal buffer or cache on a hard disc drive(8 MB to 256 MB). The larger the buffer the better performance.

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11
Q

Connectors for HDD’s

A

7-pin(L-shaped data connector, 15-pin(L-shaped power connector). SCSI(supports either 7 or 15 devices in a daisy chain.

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12
Q

What is SDD?

A

Solid State Drive(SSD). Uses flash memory technology to implement persistent mass storage.

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13
Q

SSD Form Factor types?

A

2.5(used to replace a HDD inside a laptop or small desktop), 1.8(Used inside of small laptops), M2(Like a memory chip, small, sleek, and light to use in laptop. Is used more often for laptops then 1.8)

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14
Q

Connector types for SSD?

A

SATA(for old SSDs), mSATA, Non-volatile Memory Express(NVMe)

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15
Q

mSATA SSD Connector

A

Allows the SSD to be used as an adapter card that can be plugged into a combined data and power port on the motherboard. SSDs are faster than SATA speeds.

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16
Q

Non-Volatile Memory Express SSD Connector

A

A communication protocol used with the M2 form factor to plug directly into the motherboard.

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17
Q

What is a RAID?

A

Redundant Array of Independent Disks(RAID).Combination of multiple physical hard disks that is recognized by the operating system. Provide redundancy and high-availability.

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18
Q

Raid Types?

A

Raid 0, 1, 5, 6, 10

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19
Q

RAID 0

A

Striping. And is also great for speed but provides no data redundancy. And has no loss of space on the disks. 2 disks.

20
Q

RAID 1

A

Mirroring, and Redundancy, 2 disks.

21
Q

RAID 5

A

Parity. 3 or more disks, but minimum of 3 disks.

22
Q

RAID 6

A

Striping with Dual Parity, 4 disks

23
Q

RAID 10

A

Mirror and Striping. Good for speed and redundancy, but using 4 disks.

24
Q

RAID Configuration Categories

A

Failure Resistant, Fault Tolerant, Disaster Tolerant.

25
Q

Failure Resistant

A

Protection against the loss of erased data (RAID 1/RAID 5)

26
Q

Fault Tolerant

A

Raid can function even when a component fails (RAID 1/ RAID 5/RAID 6)

27
Q

Disaster Tolerant

A

RAID with two independent zones with full data access (RAID 10).

28
Q

Removeable Storage

A

Basically external storage. Any storage device that can be moved from computer to computer without having to open up the case to remove the storage device.

29
Q

Hot-Swappable

A

Capable of being removed or replaced without disruption or powering off the device. Hot-swappable drives are safe to remove without losing the data. This feature gives us the ability to add/remove additional storage.

30
Q

Hot-Swappable drive interface types?

A

USB, Thunderbolt, eSATA.

31
Q

What is ACHI?

A

Advanced Host Controller Interface(ACHI). Technical standard developed by intel that allows hot-swappable capability with SATA devices.

32
Q

What is a Drive Enclosure?

A

Takes an internal hard drive and puts it in an enclosure.

33
Q

What is an SD card?

A

Secure Digital(SD). The orginal secure digital cards had a maximum capacity of 2GB.

34
Q

Types of SD cards?

A

SD, Mini SD, Micro SD, CompactFlash, Memory Stick.

35
Q

What is a Tape Drive?

A

A tape drive uses a magnetic tape and is placed into a reader.

36
Q

Tape Drive types?

A

Standard Type(stores 140 GB of data), and LTO Ultrium Tap(stores 3 TB of data).

37
Q

Types of Optical Drives

A

CD(Compact Disc), DVD(Digital Versatile Disc), BD(Blu-ray Disc), CD-ROM/DVD-ROM/BD-ROM.

38
Q

Compact Disc(CD)

A

Oldest form of optical drive that stores 74 to 80 minutes of music(650-700MB)

39
Q

Digital Versatile Disc(DVD)

A

Stores 4.7 GB or 8.4 GB (DL). Could store a whole movie.

40
Q

Blu-Ray Disc(BD)

A

25 GB or 50 GB (DL). Again can store a whole movie.

41
Q

CD-ROM/DVD-ROM/BD-ROM

A

Are all read-only discs

42
Q

Versions of Optical Drives

A

Read-Only(ROM), Write-Once(R), Write-many/Erasable(RW/RAM/RE)

43
Q

Read-Only(ROM)

A

Can only read. CD, DVD, BD

44
Q

Write-Once(R)

A

Writing that cannot be erased. CD-R, DVD-R, DV+R, BD-R.

45
Q

Write-Many/Erasable(RW/RAM/RE)

A

Allows to write and erase the file to create a new one.

46
Q

Types of Write-Many/Erasable

A

CD-RW(allows to write and erase the file to create a new one. DVD-RW(Are similar to CD-RW). DVD-RAM(Are similar to DVD-RW but have different type of form factor). BD-RE(Has a write-many type of disc called erasable disc. Is similar to BD-RE.

47
Q

Optical drive speeds are measured using what?

A

X-rating. CD(1X=150KB/s), DV(1X=1.385 MB/s), and Blu-ray(1X = 4.5 MB/s).

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