Search the FAQ Archives

3 - A - B - C - D - E - F - G - H - I - J - K - L - M
N - O - P - Q - R - S - T - U - V - W - X - Y - Z
faqs.org - Internet FAQ Archives

PDP-8 Summary of Models and Options (posted every other month)
Section - What is a DECmate III+?

( Single Page )
[ Usenet FAQs | Web FAQs | Documents | RFC Index | Sex offenders ]


Top Document: PDP-8 Summary of Models and Options (posted every other month)
Previous Document: What is a DECmate III?
See reader questions & answers on this topic! - Help others by sharing your knowledge
Date of introduction:  1985
Date of withdrawal:    1990 
Also known as:
	PC24P-Ax/LH -- where x gave the monitor color A (B/W), J(Grn), S(Amb).
Price: $5,145

Technology:  Same as the DECmate II.

Reason for introduction:  This machine apparently represents the last
	gasp of the PDP-8, hunting for the remains of the ever-shrinking
	market niche that the earlier DECmates had carved out.  The
	market niche was not there, and the production runs for this
	machine were short enough that UV erasable EPROM technology was
	used where earlier DECmates had used mask programmed chips.

Compatability:  Same as the DECmate II, but the machine was unable to
	read 48 track per inch IBM formatted diskettes.  Again the
	printer port was fixed at 4800 baud.

Standard Configuration:  The DECmate III+ was sold with 32K of program
	memory, plus a second bank for dedicated control panel functions,
	an integral RX33 single 5 1/4 inch diskette drive with an 8751
	controller chip, a printer port, a data communications port and
	interfaces to the monitor and keyboard.  A hard disk controller
	compatable with the optional one on the DECmate II was included,
	supporting an integral ST-225 20 MB disk; it is likely that it
	can only handle up to 1024 cylinders, but it is otherwise
	compatable with the DECmate II.

Expandability: The same coprocessor option sold with the DECmate III was
	available, but because of the difficulty of adding a second floppy
	drive, this was rarely used (the Z80 was most likely to be used
	to run CP/M, but that system requires two drives to handle the
	installation procedure; an appropriately configured bootable
	image created on a DECmate II or III could run on a DECmate III+).

	The same graphics board as used on the DECmate III was also
	available.  The circuit traces and connectors for the Scholar
	modem are present, but this option was never sold on the
	DECmate III+.

Survival:  As with the other DECmates.

------------------------------

End of PDP-8 Summary of Models and Options (posted every other month)
*********************************************************************

User Contributions:

Comment about this article, ask questions, or add new information about this topic:

CAPTCHA




Top Document: PDP-8 Summary of Models and Options (posted every other month)
Previous Document: What is a DECmate III?

Single Page

[ Usenet FAQs | Web FAQs | Documents | RFC Index ]

Send corrections/additions to the FAQ Maintainer:
jones@cs.uiowa.edu (Douglas W. Jones)





Last Update March 27 2014 @ 02:11 PM