CGS Exam 1 - Computer Storage

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

300 hours

CDs provide approximately _______________ of data storage space.

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

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

MP4

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

SSDs

One type of storage device is a _______________.

USB drive

CDs store data using _______________.

a reflective coating that has pits and lands

DVDs store data using _______________.

a reflective coating that has pits and lands

The smallest unit of data storage is a _______________.

bit

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 data storage methods.

cloud

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

helium

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

holographic

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

optical drive

Which optical drive media stores approximately 700 MBs of data?

CD

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

RAID

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

byte

One disadvantage of cloud storage is that _______________

data is only available when you're online

Solid state drives store data using _______________.

electronic circuits

Because a metal platter is physically spinning, hard drives have _______________ access times than solid state drives.

longer

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

When referring to digital storage, RAID stands for _______________

redundant array of independent disks

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

shorter