Read the texts and put the verbs in brackets into the past simple. robert noyce is an american engineer, the inventor of integrated circuits and the founder of the intel corporation. robert noyce (1) (to be) born in 1927. in 1949 he (2) (to graduate) from grinnell college in iowa with a bachelor’s degree. in 1953 he (3) (to become) a doctor of philosophy at massachusetts institute of technology. in 1956 r. noyce (4) (to start) working in the semi-conductor laboratory of william shokley. later he (5) (to leave) the laboratory with a team of colleagues and (6) (to found) fairchild semiconductor, one of the first firms in the field of electronics. they (7) (to specialize) in the manufacture of silicon semiconductors. in 1959 noyce (8) (to invent) the way to place several transistors and all the necessary connections between them on one silicon plate. the new electronic circuits (9) (to be) called integrated microcircuits, or chips. in 1968 robert noyce and his colleague gordon moore (10) (to set up) the intel corporation. and in 1971 intel (11) (to present) a microprocessor which (12) (to combine) the functions of memory and processor in one microcircuit. soon the corporation was known as the leader in the manufacture of microprocessors.

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