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From: byrnes@ge-dab.GE.COM (Arthur J. Byrnes)
Newsgroups: comp.sys.ibm.pc,comp.sys.att
Subject: Re: PC Jr. Questions
Message-ID: <661@ge-dab.GE.COM>
Date: Sun, 26-Jul-87 00:49:46 EDT
Article-I.D.: ge-dab.661
Posted: Sun Jul 26 00:49:46 1987
Date-Received: Tue, 28-Jul-87 01:29:30 EDT
References: <2275@oliveb.UUCP>
Reply-To: byrnes@ge-dab.UUCP (Arthur J. Byrnes)
Distribution: na
Organization: GE Simulation & Control Systems Dept., Daytona Beach, FL
Lines: 27
Keywords: disk display memory configuration XT-compatibility
Xref: mnetor comp.sys.ibm.pc:6075 comp.sys.att:832

>
>	Pardon my ignorance.
>	I want to know if PC Jr.'s can read and write MS-DOS 5.25" floppies.
>	Also, can PC Jr.'s work with programs expecting  Color Graphic Adapter.
The PCJr writes IBM standard double sided 360k floppies.  
The graphics adapter is fully compatable with the CGA card on an xt/pc.
Be sure to use the bios interface when programming, (this is great aadvice
to any programming done for the IBM and clones.)
The "standard" configuration for the jr is 128k memory. It can be 
expanded to the full dos limit, 640k, but only using special add ons
which may or may not still be available.

>	What other incompatibilities to PC XT that you know about.
The XT has very poor sound when compaired to the Jr.
But if the programmer has done his job properly, and not tried to
prove how well he can avoid the bios 1/3 :-), any program should 
run on either machine. 

>	Thanks for your help.
You're Welcome.

                                             Arthur J. Byrnes 
UUCP:   ...!mcnc!ge-rtp!ge-dab!byrnes        General Electric
GEnet:  advax::byrnes                        1800 Volusia Ave, Rm 4412
Voice:  +1 904 258 2507                      Daytona Beach, FL 32015

Disclaimer; These views are those only of the author, Arthur.