Thorbjørn Ravn Andersen
  • Member for 5 years, 8 months
  • Last seen this week
Why might Quake run slowly on a modern PC?
28 votes

The original Quake used software rendering directly to video memory, at that time in 320x200, and you are using a resolution with around twenty times as many pixels. In other words twenty times the ...

View answer
Why didn't PostScript eliminate the need for printer drivers?
12 votes

PostScript was quite demanding. In the early days a PostScript printer might well be the most powerful computer in the building, hence expensive. University students ran jobs on the printer to get ...

View answer
How to configure NETWORK and TCP on a DOS VM
Accepted answer
5 votes

The network card driver needs to correspond to the hardware emulated by virtualbox and neither of those you have tried, do. Full instructions seem to be present on the VirtualBox wiki - https://www....

View answer
Did people back then build powerful computers out of multiple smaller machines?
5 votes

The really big question of building multiple-CPU machines is: How do the CPU's talk to each other? In order to allow multiple CPU's to work together they need to exchange information, and the ...

View answer
Did CP/M provide compatibility for screen-based programs?
3 votes

Others have covered the bit that CP/M did not provide any abstraction of the output device so each program needing it, had to be instructed in what characters (usually escape sequences) should be sent ...

View answer
How viable is a universal PC parallel/serial connected CP/M disk controller/drive?
3 votes

CP/M consists of two parts. The BDOS and the BIOS. In modern terms BDOS can be rougly compared to the operating system like Windows and Linux, and the BIOS compared to a collection of hardware ...

View answer
USB ports for a 486 laptop (pccard 16bits)
3 votes

A completely different approach is to find an Ethernet card instead and use any available network resource (like a NAS or a Windows share on another host or the internet). I used 3com and xircom ...

View answer
Why did CP/M and MS-DOS use the BIOS instead of their own drivers to access hardware?
3 votes

One of the things to understand here, was that at the time of CP/M you had very little memory and it was a long time ago where many concepts had not been introduced yet. Drivers came later when ...

View answer
Why was preemptive multitasking so slow in coming to consumer OS's?
2 votes

You underestimate the power of existing programs. At that time everybody was using MS-DOS/PC-DOS on PC's which for all practical purposes was a program loader for running one program at a time, ...

View answer
Webservers: When did www.domain.net/dir/file.html first not point to $WWWROOT/dir/file.html but to something virtualized?
1 votes

In the early days a webserver did not know or care which hostname it served, it just served files (and optionally allowed for running external CGI scripts as the webserver itself couldn't). So, a ...

View answer
What was the standard size of a PC clone's badge indent?
0 votes

As can be seen on this picture of a Selectric typewriter the badge there is very similar. My guess would be that it was as simple as "We need a place for the IBM badge".

View answer
Source code control on an MS-DOS system
-2 votes

git is so much better than was available back then, so don't use those except for nostalgia. When you want to commit, mirror your sources to a machine new enough to run git and do it there.

View answer