Eukaryotic - Ribosomes come in two types, free or attached. Free ribosomes are found throughout the cytoplasm while attached ribosomes are connected directly to the endoplasmic reticulum.
sorry i dont know where is location of prokaryotic ribosome

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Both cell types have many, many ribosomes, but the ribosomes of the eukaryotic cells are larger and more complex than those of the prokaryotic cell. Ribosomes are made out of a special class of RNA molecules (ribosomal RNA, or rRNA) and a specific collection of different proteins. A eukaryotic ribosome is composed of five kinds of rRNA and about eighty kinds of proteins. Prokaryotic ribosomes are composed of only three kinds of rRNA and about fifty kinds of protein.