4 Aug
2012
4 Aug
'12
11:53 a.m.
On Sat, 4 Aug 2012, Tony Duell wrote:
Yes, you could run TRSDOS with only 16K RAM. TRSDOS took about
4.2K, and the Disk BASIC extension took about 5.8K. From a Radio
Shack catalog, at "http://www.trs-80.com/trs80-models-model1.htm".
==== start excerpt ====
"Professional" 16K System
$2,384.00
Consists of:
* 16K Level II Complete System
* Expansion Interface
* Mini-Disk System
* Quick Printer Cable
* System Desk
Mini-disk for expanded language, fast data handling, and
approximately 49,900 bytes of user disk storage space. Quick
Printer provides 80-column hard copy and program listings.
System Desk holds the entire system with plenty of work
space left over.
==== end excerpt ====
--Ernest
Time Magazine sets the record straight on the microcomputer history forgot,
the TRS-80 Model 1 <http://techland.time.com/2012/08/03/trs-80/>.
I'm pleased to see my Dick Smith System 80 site linked to the article.
One mistake though. You needed at least 32k for disk operations on a
TRS-80 Model 1, not 16k (-:
Did you? You nee3ded an expansio nitnerface to prvide the disk
controller and that unit had sockets for up to 32K more RAM (so a 32K or
48K machine total), but I thought TRS-DOS would boot in 16K. OF course
user memeory was then so limited that almost nothign would run.
When I upgrded to disks I filled all the sockets in the EI (4116s were
relatively cheap by then) so I never tried it with anythiog other than 48K.
-tony