Computer Storage

Select the video file compression formats.

- AVI - MP4 - QuickTime - MP3

The text contained in about 4 books uses approximately _____ times more data than a short email.

1,000

Because they have no mechanically moving parts, _____ provide extremely fast, efficient storage.

SSDs

One type of storage device is a _____.

USB drive

A million bytes of data equals approximately 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(n) _____.

memristor

One of the largest data requirements of the future will likely be ____.

mapping patients' genomes

A million bytes of data equals approximately one ____

megabyte

Blu-ray stores data using _____.

pits and lands that are read by a blue spectrum laser beam

Select the reasons to compress a file.

reduce storage space requirements

When referring to digital storage, RAID stands for _____.

redundant array of independent discs

In general, the ____ the access time, the faster the hard drive.

shorter

A thousand gigabytes equals one _____.

terabyte

Select the optical drives

- Blu-ray player - DVD drive - hard disc - thumb drive

Select the advantages of helium hard drives over traditional hard drives.

- Platters spin faster. - Lasers can read platters more accurately through helium. - Platters stay cooler. - More platters can be placed in the same amount of space.

Select the characteristics of solid state drive storage devices.

- durable, no moving mechanical parts - uses electronic circuits to store data - uses laser to read data

Select the characteristics of a Blu-ray disc.

- holds approximately 25 GB of data - uses pits and lands to store data - a read/write head senses the magnetic charges

Select the characteristics of a CD.

- holds approximately 700 MB of data - uses pits and lands to store data - a read/write head senses the magnetic charges - uses capacitors and/or transistors to store data

Select the methods of using cloud storage.

- saving a photo on Flickr - purchasing online storage space - emailing a file to yourself - purchasing an external hard drive

What are some commonly used names for USB drives?

- thumb drives - flash drives - optical drives

Select the characteristics of a traditional hard drive.

- uses magnetically charged plates to store data commonly found in desktop computers - has a read/write head to detect magnetic charges - has physically moving platters - uses lasers to read data - uses solid state electronic circuitry to store data - reads with laters

Match the capacity with the storage device: 1. Typical tablet 2. DVD 3. Typical laptop

1. 500 GB-1 TB 2. 3-5 GB 3. 16-256 GB

Match the image compression formats: 1. Joint Photographic Experts Group (JPEG or JPG) 2. Portable Network Graphics (PNG) 3. Graphics Interchange Format (GIF)

1. most popular lossy image compression format 2. most popular lossless image compression format 3. legacy (outdated) lossless format

Match the following regarding file compression: 1. Lossless 2. Lossy 3. Zip

1. reduces space required by reducing redundancy within files 2. reduces space required by removing less valuable data 3. a lossless compression format

Blu-rays provide approximately ____ of storage space.

25 GB

A typical laptop has a storage capacity of approximately ____.

500 GB-1 TB

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

Which optical drive media stores approximately 700 MBs of data?

CD

The fact that data on servers is nearly always backed up onto other servers gives ____ storage a major advantage over other data storage methods.

cloud

One disadvantage of cloud storage is that

data is only available when you're online

Storage capacity for laptop hard drives is typically described in terabytes or ____.

gigabytes

Storage capacity for laptop hard drives is typically described in terabytes or _____.

gigabytes

To allow hard disk drive platters to spin more smoothly and cooler, some manufacturers seal the platters in ____ instead of air.

helium

To allow hard disk drive platters to spin more smoothly and cooler, some manufacturers seal the platters in _____ instead of air.

helium