Exam 5: Data Storage Technology

Data is represented in the CPU as ____.

Wait states increase CPU and computer system performance.

Cost per unit decreases as an access method moves from serial to random to parallel.

____ is the most important characteristic differentiating primary and secondary storage.

Most optical storage media can retain data for decades because they aren't subject to magnetic decay and leakage.

List important characteristics among which storage devices and technologies vary.

What is an advantage of optical storage over magnetic storage?

SRAM has higher density then DRAM.

____ is a generic term for describing secondary storage data transfer units.

Magnetic disk drives have an advantage over SSDs in power consumption.

A ____ storage device stores and retrieves data items in a linear, or sequential, order.

____ is the time required to read the second of two adjacent sectors on the same track and platter.

The term ____ describes primary storage devices that are implemented as microchips, can read and write with equal speed, and can randomly access bytes, words, or larger data units.

In a CD, concave dents in the reflective layer that are used to represent bit values are called "____."

How is a storage device's data transfer rate computed?

____ is implemented entirely with transistors.

A single disk sector usually holds ____ or 4096 bytes.

​Each refresh operation in DRAM is called a(n) ____________________.

​A(n) ____________________ provides the interface between the storage device and system bus.

A disk with many program and data files scattered on it is said to be ____.