Exam 4: Business Hardware

Although _________systems vary in sophistication,all receive voice input from a microphone or telephone and process it with software.

What factors make one computer more powerful than another?

Images on a monitor are made up of small dots called _________.

Why do people prefer to use ergonomic keyboards for additional comfort while typing?

Identify the four basic operations a computer must handle.

DAS,NAS,and SAN often include _________,whereby data is replicated on different disks to enhance processing speed and fault-tolerance.

The four functions performed by the CPU in every cycle are fetch,decode,execute,and_________ .

What are impact printers?

Two qualities to check when purchasing a laser or ink-jet printer are speed,measured in_________ ,and density,measured in dots per inch (DPI).

The control unit is the part of the CPU where all arithmetic and logic operations take place.

Optical bar recognition senses data encoded in the series of thick and thin black bars in bar codes.

_________are the most powerful computers at any given time,but are built especially for assignments that require arithmetic speed.

_________is the number of bits per second that the bus can accommodate.

The_________ is the maximum number of bits that the control unit can fetch from primary memory in one machine cycle.

Since_________ reduces the amount of paper in organizations,some of its most enthusiastic adopters are companies in paper-intensive fields such as law,retail,insurance,and banking.

One rough formula to help determine when to replace hardware is the ratio of the average age of hardware pieces to the average age of the operating systems running on the machines.

_________are typically used for computer-aided design (CAD),computer-aided manufacturing (CAM),complex simulation,graphical rendering,and scientific applications.

_________contain multiple processors that let them perform parallel processing and run at great speeds.

There are two basic types of access modes for data storage:_________ and direct (random) access.

Even if storage cost is not as attractive as that of CDs,portability and the fact that their ports are ubiquitous in PCs might push one toward selecting a _________.