Quizzes, tests, exercises and puzzles for English as a Second Language (ESL), English as a foreign language (EFL), Teaching EFL (TEFL), Test of EFL (TOEFL), English for speakers of other languages (ESOL), Teaching ESOL (TESOL), TOEIC.
Fact
The first electronic digital computer (called eniac - the electronic numerical integrator and calculator) was developed in 1946 and contained over 18,000 vacuum tubes. .. More >>