** v3.02 as listed on the side of the dBASE box is not
correct. dBASE IV v1.5 was actually certified on v4.00.
dBASE IV v1.5 QUESTIONS AND ANSWERS
IMPROVEMENTS AND COMPATIBILITY
I use my word processor/text editor with dBASE IV?
A. The TEDIT facility in dBASE IV version 1.5 permits the
installation of a third party word processor/text editor.
data field types does dBASE IV support?
A. dBASE IV v1.5 supports: character, numeric, floating
numeric, date, logical and memo (large text) data types.
dBASE III PLUS applications fully compatible with dBASE IV version 1.5?
A. dBASE III PLUS applications are compatible with dBASE
IV. dBASE IV was designed to be upwardly compatible with dBASE III PLUS. However, in order
to extend the functionality and include the internal compiler, some areas may require
do I convert files from dBASE II and dBASE III to dBASE IV?
A. Files from dBASE III and dBASE III PLUS are completely
upward compatible to dBASE IV. Files from dBASE II can be upgraded with the dCONVERT
utility which is provided in the product.
INSTALLATION AND MEMORY
you install dBASE IV v1.5 in less than 640K of RAM?
A. You can install dBASE IV v1.5 with as little as 450K of
memory available at the DOS prompt.
dBASE IV support Extended or Expanded memory?
A. Yes, if Extended memory is available. Upon installation,
dBASE IV v1.5 will automatically determine whether your system has extended or expanded
memory and install the appropriate files. dBASE IV will take advantage of that memory by
using its integrated disk cache to enhance performance. In addition, the dBASE IV Server
Edition is written to run in "Protected Mode" (Extended Memory) and can use up
to 15MB of memory for application space or performance. It has an integrated disk caching
facility that allows users to cache data and overlay files as well.
does the disk caching facility work in dBASE IV v1.5?
A. The integrated disk caching option in version 1.5 uses
extended or expanded memory for caching data and program overlays to reduce disk access
and improve system performance. The disk cache is installed as an option when installing
1.5. When installed, it is automatically loaded and then removed from memory when users
quit dBASE IV v.1.5 and has been improved over dBASE IV v1.1 making it more robust,
especially for use with Windows 3.x and DOS 5.0. The amount of memory used by the cache
can be controlled by setting parameters.
if I already have a cache program?
A. You may use your current disk cache program with dBASE
IV. However, the caching facility in dBASE IV 1.5 can only be used with dBASE IV.
ADDITIONAL PRINTER SUPPORT
dBASE IV v1.5 support Postscript printers?
A. dBASE IV v1.5 supports the Apple LaserWriter and other
fully compatible Postscript printers. In addition, XON/XOFF support for serial Postscript
printers is fully supported.
the Printer Driver Toolkit promised in the dBASE IV Developer's Edition version 1.0
included in 1.5?
A. The printer driver toolkit is available through Borland
Technical Support. We do not plan to ship this as part of dBASE IV v1.5.
NETWORK AND DISTRIBUTION ISSUES
should I get to put dBASE IV on a LAN?
A. A full system of dBASE IV version 1.5 needs to be
installed on a LAN, providing access to one workstation. Additional users can be added
with any number of dBASE IV version 1.5 LAN Packs and expanded to meet user needs. The
dBASE version 1.5 LAN Pack comes in either a 1 user count or a 10 user count.
you explain what a LAN version is?
A. The dBASE IV Lan Packs are expansion packs for dBASE IV
version 1.5. It allows either an additional one user or an additional 10 users to access
dBASE IV when it is isntalled on a file server on a network. They are EXPANSION pack and
not full dBASE IV systems. You must have a copy of dBASE IV v1.5 to use them.
Q. Do I
need a LAN Pack for RunTime?
A. No. The optional RunTime module allows developers to
create applications using RunTime to network without the necessity for a LAN Pack.
can I increase the performance of dBASE IV on a LAN? RunTime?
A. Owners of the dBASE IV v1.5 RunTime module are licensed
to distribute an unlimited number of copies with their applications, in accordance with
Borland' runtime license agreement. RunTime supports applications in both single-user and