Exam 3: Storage

____ optical discs can be recorded on,erased,and overwritten just like magnetic disks.

Internal hard drives are not designed to be removed,unless they need to be repaired or replaced.

A ____ is the hardware where data is actually stored.

____ devices are high-performance storage servers that are individually connected to a network to provide storage for the computers connected to that network.

Storage devices can be internal (located inside the system unit),external (plugged into an external port on the system unit),or remote (located on another computer).

The objective of disk mirroring is to increase ____________________.

Virtually all personal computers come with a(n)____ that is used to store most programs and data.

To avoid confusion with the tracks or songs on an audio CD,the track on an optical disc is sometimes referred to as a(n)____________________.

Users do not have to be concerned with how files are physically stored on a storage medium.

A smart card can store a prepaid amount of ____________________,which can be used for purchases at a smart card-enabled vending machine or computer.

SSDs are an especially attractive option for portable computers and mobile devices.

With rewritable optical media,the laser permanently alters the disc surface.

What kind of applications are holographic data storage systems suited for?

____________________ data refers to data stored on a device's storage medium that will still be there after you have powered off and on your device.

Some smart cards today store ____ data-such as the characteristics of a fingerprint-in the card and use that data to ensure the authenticity of the card's user before authorizing the smart card transaction.

Since retrieving data from memory is much faster than from the hard drive,disk caching can speed up performance.

With a CD,the storage medium and the storage device are permanently sealed together to form one piece of hardware called a fixed-media storage system.

RAM is volatile.

Traditionally,the magnetic particles on a hard disk have been aligned vertically,perpendicular to the hard disk's surface.

Media that allow random access are sometimes referred to as ____ media.