Intermec 6100 참조 가이드

R

The integrityĆprotection feature is an implementation that protects RAM from

instructions that might improperly try to write data to the wrong location.  If

data were written to the wrong location, a corrupted data file, or even a lockup,

could occur.  In the PEN*KEY 6000 Series Computer, the RAM drive is protected

from that situation.  This protection is implemented in the system software

(BIOS).  Even in the event of a reboot, the RAM drive is protected from loss.

This feature enhances the failĆsafe operation of the computer.

All implementations of software systems on the PEN*KEY 6000 Series ComputĆ

ers are diskĆbased.  If a specific application is written in PenPal, for example, the

same information shown previously in Figure BĆ2 through Figure BĆ5 still holds

true.  The only difference is that, instead of Windows being loaded over DOS,

components of the PenPal runtime software are loaded.

This part of the Guide serves two purposes.  First, it presents a description of the

Microsoft Windows environment to help you to become acquainted with the variĆ

ous Windows components.  Second, it describes an approach to determining the

memory requirements for a WindowsĆbased PEN*KEY 6000 Series system.

The design for the Windows environment was made for a better user interface.

The Macintosh environment had gained significant popularity with many potenĆ

tial customers who felt that the DOS user interface was clumsy and hard to

learn.  While the Macintosh environment was built without concern for existing

applications from previous Apple products, the Windows designers knew that, to

succeed within the PC world, the Windows environment must address both the

existing DOS applications and the Windows applications being planned.  FurĆ

ther, to accumulate the largest audience, the Windows environment must operĆ

ate on machines that are already installed with the DOS operating system.
While the Windows version 3.0 environment was considered by many to be the

first real version of Windows (because it worked!), two previous versions had

been previously built and released.  These versions (versions 1.0 and 2.0) were

slow and poorly designed.  Windows 3.0 combined an acceptable user interface

for the nonĆtechnical user who had the ability to use the full capability of the InĆ

tel 386 processor.  It was in this environment that Windows gained great popuĆ

larity and success.  The main lesson learned by many who adopted Windows earĆ

ly was that Windows required tremendous system resources in terms of processor

speed, RAM, disk space, and video capability.
As you become more involved with products like the PEN*KEY 6000 Series ComĆ

puter, you will find that a working knowledge of the Windows environment is

critical to your success in implementing these systems.