I had a TRS-80 Model 1, originally came with Level 1 Basic, 4 KB of RAM and
a cassette interface for programs and data, and a clock speed of about 2
MHZ...

I built an EPROM programmer, copied the Level 2 Basic PROM from a friends
unit and 'bulked up' my machine to 48 KB (without buying the expansion
unit)...

Also added a mainframe printer I bought at a flea market (after making a
centronics compatible printer interface for my TRS-80); the printers manual
boasted that the internal 2 KB of memory could double as online storage for
the host system...

But my first "PC" was an RCA COSMAC 1802 based Elf unit, with 256 bytes of
RAM, no prom and a hex kepad and display (not bad conisdering contemporary
hobby PCs were still using LEDs and toggle switches for each address and
data bit).

Those were the days.  :)
Bruce.

-----Original Message-----
From: Howard McGinnis [mailto:mcginnis@E-VISIONS.COM]
Sent: Monday, January 06, 2003 1:58 PM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [OT]: Blast from the past


At 11:12 AM 1/6/2003 -0500, you wrote:

>I fondly remember my own TRS-80. Model 1, Level 2 (16K RAM).

We got one of the first TRS-80's in the Florida and one of the first
projects was to interface to a Teletype Model 15 printer, since that's all
we could afford at the time! Talk about the past! The manual for the Model
15 provided instructions on how to destroy the printer in the event you
were overrun by the enemy!

Howard


Howard McGinnis
Electronic Visions, Inc.
mcginnis@e-visions.com
www.e-visions.com

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