CGS2060 Computer Storage

Blu-rays provide approximately ____ of storage space.

25 GB

According to YouTube, approximately how much video is uploaded to its site every minute?

300 hours

CDs provide approximately ______ of storage space.

700 MB

Blu-ray stores data using: A. Pits and lands that are read by a blue spectrum laser beam B. A metal platter with a reflective coating C. A magnetic coating that is sensed by a read/write head D. Electronic circuits

A

One type of storage device is a: A. USB drive B. RAM C. Microphone D. CPU

A

One disadvantage of cloud storage is that: A. When a DVD gets scratched, data can be irretrievably lost B. Data is only available when you're online C. Over time, data stored on the cloud deteriorates D. Because of their small size, thumb drives can be easily lost

B

Solid state drives store data using _____: A. Laser markings B. Electronic circuits C. Reflective coatings D. Magnetically charged particles

B

The smallest unit of data storage is a _____.

Bit

One character of information, for example, a letter or a number, consists of one _____ of storage.

Byte

DVDs store data using _____: A. A magnetic coating that is sensed by a read/write head B. Electronic circuits C. A reflective coating that has pits and lands D.A blue spectrum laser beam

C

One of the largest data requirements of the future will likely be _____: A. Retinal scans B. Storing fingerprints C. Mapping patients' genomes D. Facial recognition data

C

Which optical drive media stores approximately 700 MBs of data?

CD

Because it allows their files to be accessed from any device on the Internet, many users like to back-up their files using ____ storage.

Cloud

Emailing a file to yourself is an example of using ______ storage.

Cloud

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

Cloud

CDs store data using: A. Electronic circuits (transistors and capacitors) that store data B. A blue spectrum laser beam C. A magnetic coating that is sensed by a read/write head D. A reflective coating that has pits and lands

D

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

DNA

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

Helium

A refracted laser beam striking a photoreceptor from many different angles allows _____ storage to retain many bits of data in the same location.

Holographic

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

The 2 most common audio file formats are WAV and ____.

MP4

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

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

Optical drive

Because of their capability of storing data in multiple hard drives, data warehouses use _____ technology to ensure redundant data storage.

RAID

When referring to digital storage, RAID stands for what?

Redundant Array of Independent Discs

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

SSDs

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

Shorter

A thousand gigabytes equals one ____.

Terabyte

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

storage