module 6 - compute storage

Which of the following are characteristics of solid-state drive (SSD) storage?

- uses same technology that is found in USB drives - Uses flash Tech - Has no mechnamically moving parts

Rank the following optical media by capacity with the smallest at the top

1. Compact Disc 2. Digital Versatile Disc (Single layer) 3. Digital Versatile Disc (double layer) 4. Blu-ray disc 5. Ultra Blu-ray Disc

Which of the following uses approximately 1 gigabyte of data?

20's music cds

Blu-rays provide approximately _____.

50 GB of data storage space.

A typical laptop has a storage capacity of approximately _____.

500 GB to 1 TB

Judy wants to purchase a Blu-ray disc that can be recorded on multiple times. She should choose discs that are labeled _____.

BD-RE

Match the following terms associated with optical media. - Blue-ray disc - DVD - CD

Blue-Ray: 50 gb, used to store HD movies DVD: 4.5 GB CD: 700 MB

Though it could theoretically hold terabytes of data for thousands of years in a microscopic space, ___ storage, using genetic material, is a distant storage option.

DNA

Match for following optical disc terms. DVD-ROM CD-R DVD-RW

DVD-ROM: cannot be burned CD-R disc that can be burned once DVD-RW: burned mulitple times

Which of the following are disadvantages of using cloud storage?

Data stored on someone else's server can be accessed by anyone who has administrator privileges to the server. Data are only available if you are online.

A laptop computer's memory capacity is measured in __ or terabytes of data.

Gigabytes

A refracted laser beam striking a photoreceptor from many different angles allows __ storage technology to retain petabytes of data within 1 cubic inch of space.

Holographic

Which of the following are video file compression formats?

MP4 AVI QuickTime

Categorize the following as either memory or storage. Memory Storage

Memory: Random access memory (RAM) -L3 Cache-Processor registers Storage: Solid-state drive (SSD) -universal serial bus (USB) drive- Blu-ray disc- Read only memory (ROM)

Which of the following are advantages of helium hard drives over traditional hard drives?

Platters stay cooler More platters can be placed in the same space Platters spin faster

When referring to digital storage, RAID stands for:

Redundant array of independent discs

Categorize the following as either storage device or storage media. Storage Device: Storage Media:

Storage device: Blu-ray player Optical drive External hard drive storage media: Dvd, Blue-ray disk, CD

One thousand gigabytes equals one _____________. That is enough capacity to store 40 (average-sized) Blu-ray movies!

TB

Because they use flash-based technology _____drives provide portable, fast, and reliable storage at a relative low price.

USB

Which of the following are characteristics of cloud storage?

Users can download files to other devices on the Internet. Servers act like giant hard drives. Files are backed up (stored on multiple servers).

Which of the following are characteristics of a CD?

Uses pits and lands to store data Holds approximately 700 MB of data

DVDs store data using _____.

a reflective coating that has pits and lands

CDs store data using:

a reflective coating that has pits and lands.

Which of these audio compression formats is used by Apple music?

advanced audio coding (AAC)

Some new laptops come with an L3 __ with a capacity of up to 8 MB: - hard drive - printer - cache

cache

Three important types of memory in your computer include registers, random access memory (RAM), and _____.

caches

E-mailing a file to yourself is an example of using _____.

cloud storage

Having your files stored on multiple online servers means there is minimal risk of your data being lost. This is a significant advantage of using

cloud storage

Solid-state drives store data using _____.

electronic circuits.

A significant advantage of using a solid-state drive instead of a traditional hard drive is that a solid-state drive uses

electronics w/ no moving parts

Most popular lossy image compression format is the Joint Photographic __ Group (JPEG, or JPG).

expert

Which 2 of the following are advantages of SSD storage over traditional (magnetic) storage?

faster, more durable

Blu-ray disks have pits and lands that absorb or reflect a laser beam and can store approximately 50 __ data

gigabytes

Most laptops have hard drive capacities measured in __ or terabytes

gigabytes

To allow hard disk drive platters to spin more smoothly and cooler, some manufacturers seal the platters in __ rather than air

helium

Using refracted laser light to store data on a photoreceptive substrate is essentially how ___ storage works. Theoretically, this could store gigabytes of data within a cubic millimeter.

holographic

A disadvantage of using the cloud to store your files is that to access them you have to be connected to the

internet

A short, plain text e-mail uses about a _____ of data.

kilobyte.

DVDs have pits and lands that absorb or reflect a __ beam. DVDs can store approximately 4.5 GB of data (single layer).

laser

Because a metal platter is physically spinning, hard drives have:

longer access times than solid state hard drives.

Because it reduces an audio file's sampling rate to save space, the MP3 format is a(n)__ compression format.

lossy

A large ____ can remove data from a traditional hard drive, but would not hurt a Blu-ray disc.

magnet

Because of its potential value in diagnosing health issues and because of the massive amounts of data it requires, one of the largest data storage requirements of the future will likely be for ___ .

mapping patients' genomes

One million bytes equals a __ of data. This is enough to store the text in approximately four books in plain text.

megabyte

One million bytes of data equals one:

megabyte

An electronic element that stores data by changing its resistance based on the current that has passed through it (similar to RRAM) is called a ___.

memristor

An electronic element that stores data by changing its resistance based on the current that has passed through it (similar to RRAM) is called a(n) _____.

memristor

Because it is small, energy-efficient, and fast, _____ cards/drives is/are often used to increase smartphone or digital camera storage capacity.

microSD

Flash technology provides fast access time since it uses no ___ parts.

moving

A popular lossy video and audio compression format is the ____ format.

mp4

A storage device that uses lasers to read CDs, DVDs, or Blu-ray discs is referred to as a(n) __ drive

optical

A storage device that uses lasers to read CDs, DVDs, or Blu-ray discs is referred to as a(n) _____.

optical drive

Server banks have capacities measured in _____.

petabytes.

Which of the following item comes in capacities measured in petabytes?

server bank

the ____ the access time, the faster your data will reach your processor.

shorter

The component of a computer that allows data to be retained after power is turned off is referred to as _____.

storage

A thousand gigabytes equals 1 ___.

terabyte

A significant data storage challenge is that nearly 700 hours of video are uploaded to ___ every minute!

youtube