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

Which optical drive media stores approximately 700 MBs of data?

CD

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

RAID

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

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

byte

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

One disadvantage of cloud storage is that _______________

data is only available when you're online

Solid state drives store data using _______________.

electronic circuits

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

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

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

optical drive

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