the requirement mainly more on file (different file format like microsoft office, pdf, jpeg, etc) sharing (store & retrieve) among PCs within the same network. No need very high spec. but lately NAS become hot topics in the market so just wondering is NAS able to do the same job or home server still the best in term of versatility and most importantly cost effectiveness. 

Many thanks for the replies and hope to gather more specification info and recommendation....have a great day ahead guys....cheers

can recommend brand/model/price in the market ?