A video monitor, used for a computer, is practically the same as a TV monitor. Thus, it is able to receive video signals from a VCR if it is connected with the right cables. This might require a TV tuner device with the right connectors to link them up. You will also likely need audio speakers to transmit the VCR sound. Once you have these, you should be able to view your video tapes on the computer monitor.
Check all the available input ports on the computer monitor. If it has S-video or composite video (RCA) ports, connect it to the VCR using any one of the appropriate cables. Connect the S-video or RCA cable to the VCR's output port. If you have an older monitor without these ports, you'll need an adaptor.
Purchase a TV tuner box from any computer or electronics store. What you need is an analogue tuner box that has a connector for your monitor's port (likely a VGA connection) and a composite video (RCA) and/or RF (coaxial) port.
Connect the TV tuner box's video output to the computer monitor using the VGA (or other appropriate) connection. Connect the tuner box to the VCR's output port using either the coaxial or RCA connection. This connection should be on the opposite end of the box from the monitor connection.
Connect the tuner box's audio output to a set of stereo speakers. This should be a set of red and white RCA ports on the same side as the video output port. You will only need an RCA audio cable for this connection, which doesn't have the third (yellow) plug.
Plug in the VCR, monitor and speakers. Insert a video cassette into the VCR and play it. The video image should play on the monitor and the sound should play over the speakers.
If the tuner box doesn't have audio output ports, connect only the video (yellow) plug to the box's input. Connect the audio (red/white) plugs directly to the speakers from the VCR. You can attach your cable/satellite receiver as well to turn this into a complete TV set. Simply connect the receiver box's output to the VCR's input.