how would I connect 2 computers with printer in home based network?

I have an old Thompson ST780i WL router and Speedport W 724V Type Ci that I don’t use any more.

How would I connect a laptop and I desk pc, let’s call them A and B, to a printer (C) in a small network?

The current situation is that A and B are via Wifi connected to a third router D, which is out of this story. I have no physical line access to it.
If the printer had Wifi connection ability I guess that the story would be over very quickly once I connect C to a network that A and B are on.

For now, A and B are connected to a C with a line cable, one at each time, so I need to unplug A and plug B and vice versa, which is annoying.

Could I use Thompson or Speedport to create a separate network and connect via ethernet A and B so the can print at the same time not dealing with cables anymore?

What’s the relationship between the Nascom computers and the company Lucas Electrical?

Researching the Nascom 2 computer, I found these schematics for the system. Interestingly, after the schematics for the computer itself, there is an added schematic for a disk controller to use with it. This schematic has a copyright statement describing it as owned by “Lucas Logic Limited”, a company that I can find no references to in any of the Nascom related material I’ve looked at. I would assume that it was simply a third party adapter, except that the details on the schematic give an address for this company, and it is the same address (in Wedgenock Industrial Estate, Warwick, UK) that is widely published as the primary contact address for Nascom computers; it appears that Nascom was a trading name of Lucas Logic Ltd (although whether this was always the case I have been unable to ascertain).

Lucas Logic Limited was later renamed, and is currently called Artemis International Corporation Limited and apparently specialises in enterprise investment management software.

Lucas Logic’s branding (visible in the schematics linked above) was similar to the current branding of automotive parts manufacturer Lucas Electrical, which like Lucas Logic is also based in the UK Midlands. But as of today, there doesn’t appear to be any actual association between these entities. Is it known how they were related?

Question: Where can i learn more about computers instead of just using it?

I have tried learning programming languages multiple times until i realized i am not ready for it. I must learn more about computer in all of its categories. A person who only browse the web can’t jump directly to creating a software, he needs more info. I do know alot more than a person who just search the web, but less to be create a software and be called a computer expert. I’d like to know more about Software, Hardware, Networking and even Operating Systems and their Build-in tools. Where can i start?

Set password for local admin on all computers in domain

I’m setting the password for the local admin account on all computers in the domain per startup script. Which contains the password in cleartext, of course.

Before you consider me mad from the security standpoint, please continue reading:

I have limited file permissions to the script: Only Domain Computers and Domain Admins can access the file.

To but it shortly, do you still consider me mad or is this OK from the security standpoint?

sincerely,
fjf2002

EDIT

My use case is as follows:
I just need the local admin accounts in case of a fallback scenario: A computer drops out of the domain or its network adapter goes broken or something like that. Then I need a local admin account.

In my domain that I’m administering from now on, different computers have different local admin passwords, and the old administrator from whom I took over can’t remember correctly. So I thought I reset them all.

Did DEC build their early computers out of the same parts?

Considering the PDP-8, PDP-7, PDP-9, PDP-1, even though they are completely different architectures (from a programmer’s or compiler’s point of view at least), they have some remarkable similarities in some details.

For example, the microcoded instructions on both the PDP-8 and PDP-7 have cla, cll, cma, cml, and single or double rotations, which conveniently build up small constants in the accumulator.

The same two computers also have exactly the same skip instructions, and a bit in the instruction to indicate an indirect memory access. The same operations are also available in the PDP-1 instruction set, as are, obviously, things like add, and load.

The same two computers also have an optional EAE, which provides another register MQ and some mathematical operations, though the size of MQ obviously varies between 12 and 18 bits.

So straight away, my mind is supposing that there’s some kind of commonality in the implementation as well.

  • Maybe there’s even a single part, which implements all these operations on a bit or group of bits, and which is installed in all these computers to implement a register and ALU.
  • Maybe there’s some part which takes a bitfield from an instruction, and determines which of these operations need to take place (and is thus part of the instruction decoder) and is installed in at least some of these computers.

Are there large subsystems in common between the implementations of both 12-bit and 18-bit PDPs, which are responsible for the patterns and similarities between these two groups of computers?