Across
- 1. a person who writes computer programs.
- 2. was Australia 's first digital computer, and the fifth stored program computer in the world.
- 5. was a set of computers developed by British codebreakers in the years 1943–1945 to help in the cryptanalysis of the Lorenz cipher .
- 6. it was an advanced bit-serial binary computer with two independent CPUs, each with its own 512- word acoustic mercury delay line memory.
- 8. is a base-2 number system invented by Gottfried Leibniz that is made up of only two numbers: 0 and 1.
- 10. was the first general-purpose electronic digital computer design for business application produced in the United States.
- 13. was one of the earliest stored-program computers, developed at the Victoria University of Manchester from the Manchester Baby.
- 15. one advantage of First gen computers
- 16. tube an electron tube, valve or tube, is a device that controls electric current flow in a high vacuum between electrodes to which an electric potential difference has been applied.
- 20. speed one disadvatange of First gen computers
- 21. was an American physicist and inventor, best known for being credited with inventing the first electronic digital computer.
- 23. a semiconductor device with two terminals, typically allowing the flow of current in one direction only.
- 24. also called the Small-Scale Experimental Machine (SSEM), was the first electronic stored-program computer, was built at the University of Manchester.
- 26. was an early British computer. Inspired by John von Neumann's seminal First Draft of a Report on the EDVAC.
Down
- 1. is a collection of instructions that can be executed by a computer to perform a specific task.
- 2. is a system of electrical conductors and components forming a complete and closed path.
- 3. an electronic device for storing and processing data, typically in binary form, according to instructions given to it in a variable program.
- 4. an unfavorable circumstance or condition that reduces the chances of success or effectiveness.
- 7. is the electronic circuitry within a computer that executes instructions that make up a computer program.
- 9. a condition or circumstance that puts one in a favorable or superior position.
- 11. the year where computers of first generation used vacuum tubes as the basic components for memory and circuitry for CPU.
- 12. he was an english electrical engineer and physicist who invented the first thermionic valve or vacuum tube.
- 14. capacity for storing information on a computer.
- 15. it is one of the first electronic computers that utilized the binary system that first began performing basic tasks in 1951.
- 17. was an English engineer. During World War II, He designed and built Colossus, the world's first programmable electronic computer, to help solve encrypted German messages.
- 18. it was the first electronic general-purpose digital computer. It was Turing-complete, and able to solve "a large class of numerical problems" through reprogramming.
- 19. was an American electrical engineer and computer pioneer. With John Mauchly, he designed the first general-purpose electronic digital computer (ENIAC)
- 22. was an American physicist who, along with J. Presper Eckert, designed ENIAC
- 25. is not programmable but it could solve a system of linear equations.