1. The first digital computer could__solve__a lot of mathematical problems at a fast ___sped___. 2. Vannevar Bush built the first __electronic___computer in 1930. 3. Babbage's analytical engine was designed to ___process___ data. 4. J.von Neumann invented a machine that was able to__process___ not only data but also __texts___. 5. Neumann__came up with___ the idea of storing data in a __memory___ . 6. Computers use two conditions for__numeric___symbols. 7. The invention of___interface___ _devices__made computers possible to control and __generate___electronic signals. 8. Due to__cash___ __memorycomputers could perform__operations much faster.