Computer Hope

Hardware => Hardware => Topic started by: John1397 on January 19, 2015, 06:25:02 AM

Title: 8080 Computer
Post by: John1397 on January 19, 2015, 06:25:02 AM
When you use an 8080 computer what type of monitor do you use?
Title: Re: 8080 Computer
Post by: DaveLembke on January 19, 2015, 07:40:07 AM
Do you mean an 8088?

If so there were a few monitor options, but it depends on the video card.

Monochrome - Single color Orange, Green, or Black & White
CGA - Color Display
EGA - Color Display and better than CGA
VGA - Color Display and better than EGA ( RARE to find a 8088 with VGA as for most were EGA or lesser as well as VGA didnt really become popular until the 286 and 386 generation computers. )

*Note: The video card would have to be an 8-bit video card. Many of the VGA cards were 16 bit cards and so you would have to find like a really old early VGA card.

Most software and games for the 8088 worked with Monochrome through EGA video/display requirements. I dont recall any special software of that time on an 8088 CPU requiring a VGA setup. The only thing that comes to mind for VGA requirement may have been graphic design or running newer software intended for 286 or newer run on a slow 8088 CPU instead for the fact that computers were thousands of dollars back then to replace and minimum wage was somewhere between $2 and $3 an hour. With that said, any software and games run on a 8088 with 8-bit VGA graphics was probably originally intended for a 286 or better CPU system, and some may not work on the 8088 as for resource requirements may not be met such as trying to run Wolfenstein 3D on a 8088 wont happen.

** Most importantly the monitors had to be paired up to the video card type, so if you have a CGA video card you would need a CGA display. So each type listed needed its own special monitor type paired with the video card type.
Title: Re: 8080 Computer
Post by: Geek-9pm on January 20, 2015, 02:34:58 PM
Depends on the video device. The 8080 has not way to directly create a raster. If there is no video device in the system, a teleprinter is used and connects to a serial
port.

Some few Z80 designs could directly produce a raster from the address lines.