"rojash - my record palyer does not have an output "
Well, in your earlier post you called it a turntable, which is usually used to denote one that plugs into a separate amplifier. If this is the case you can either connect it to the PC instead of to the external amplifier, or, if the amplifier has an Aux output (and most of them do) you can connect that to the line input of your pc.
"the record player is about 25 years old. "
Record players haven't changed much in the last 40 years.