<Tr> <Td> Personal computer </Td> <Td> Chuck Peddle </Td> <Td> Developed the 6502 microprocessor, the KIM - 1 and the Commodore PET </Td> </Tr> <Tr> <Td> Henry Edward "Ed" Roberts André Truong Trong Thi </Td> <Td> </Td> </Tr> <Tr> <Td> Programmable logic controller </Td> <Td> Dick Morley </Td> <Td> </Td> </Tr> <Tr> <Td> Search engine </Td> <Td> Alan Emtage </Td> <Td> Created Archie, a pre-Web search engine which pioneered many of the techniques used by subsequent search engines </Td> </Tr>

Who is known as the father of invention