My parents weren't even married in 1965 :-)=20

Do you felt like you were in the middle of a (small/big) revolution or not =
at all?


Rossano

> Date: Sun, 1 Mar 2015 21:14:26 -0800
> Subject: Re: [OT] 50 years ago...
> From: harold@hallikainen.org
> To: piclist@mit.edu
>=20
>=20
> > PC's for everyone !
> >
> > http://en.wikipedia.org/wiki/PDP-8
> >
> > Anyone with $20K, that is, in 1965 dollars...  :)
> >
> > A bit of perspective on the meaning of RISC, and perhaps also
> >
> > the meaning of money - Roughly $200 K in today's greenbacks...
>=20
> The first college class I ever taught was assembly language programming o=
n
> the PDP-8. I still have the book from Digital. It was all Teletype and
> paper tape. Use toggle switches to put a simple loader in core. Read in
> another loader from paper tape. Load in an editor from paper tape. Write
> your program. Punch the source code to paper tape. Load the assembler fro=
m
> paper tape to core. Run the assembler, passing the source tape through
> twice. Punch the executable object tape. Load the object tape into core.
> Debug with toggle switches and front panel lights.
>=20
> One of the instructions I remember is CIA for Complement and Increment
> Accumulator (negate the accumulator).
>=20
> Another interesting thing was that subroutine code started one word after
> the stat address of the routine. A subroutine call put the return address
> in the first location of the routine, then started executing in the next.
> A return was an indirect jump back to the start of the subroutine where
> the return address was stored, then back to the caller. A stack is sure
> nice!
>=20
> I really thought the architecture and instruction set of the PDP-11 was
> clever.
>=20
> Harold
>=20
>=20
>=20
>=20
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