I mean a bootable windows 95 iso where I can burn on a cd-r. If not is there any other way to install Windows 95 on my old computer?
How can you not have a floppy disk?Boot the windows 95 boot floppy and go from there...
Anyway.
Method 1:
There is a pretty involved method of adding the windows 95 boot floppy as a "bootblock" to a windows 95 installation CD,you should be able to find a tutorial for this online.
Just examples I found probably not even good ones.
For windows
http://www.magiciso.com/FAQ/FAQ0006.htm
For linux
http://www.troubleshooters.com/linux/floppy_image_on_cd.htm
Method 2:
Get the HDD out and put it on a system that already has any sort of windows running,Partition it and format it under CMD as a dos disk (format x: /s ) now you can copy over some dos commands like cd,copy, and whatever you will need, you could also install (copy) all of dos onto the disk if you like,also copy the win95 folder from the win95 iso/cd to the disk,if you boot the disk on the target system you can cd to this win95 folder and run install.
Method 3:
Put the disk on a working system, run a VM and add this HDD install windows 95 normally to the disk don't reboot when it asks you to after it copied all the files close the VM and put the disk in the target system and it will continue the installation there.