1) How long has IBM produced commercially successful computers ? a) Since 1953 b) Since 1980 2) Has printing been around for a long time ? a) No, it wasn’t b) Yes, it was 3) How long have TV sets been common in homes ? a) In the early 1960s b) In the late 1930s 4) How long ago did the first microwave ovens appear in homes ? a) Since 1967 b) Since 1946 5) How long have cameras been on the market ? a) Since 1888 b) Since 1880 6) For how many years have people had cell phones ?  a) Almost 42 years b) Almost 10 years

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