Computing Technologies

Question 1

metal gears

Question 2

vacuum tubes

Answer 2

is a device that controls electric current flow in a high vacuum between electrodes to which an electric potential difference has been applied.

Question 3

transistors, semiconductors

Answer 3

transistor, semiconductor device for amplifying, controlling, and generating electrical signals.

can have electrons move through it, but under the right condition can stop it.

Question 4

silicon chips: integrated circuits, microprocessors (CPUs)

Answer 4

As a whole, a CPU works by processing instructions supplied by the PC. The CPU gets the instructions from memory and processes them in sequence by first fetching the instruction, then decoding them, and finally executing them. That is the very short answer to the question of how a CPU works but it is basically exactly that.

Question 5

ALU, RAM

Answer 5

The arithmetic, logic, unit, performs all the four arithmetic (+, -, *, /) and some logical (<, >, =, <=, >=, !=) operations.

Question 6

input devices
output devices

Answer 6

(keyboard, mouse)

(monitor, speaker, printer)

Question 7

storage devices:

Answer 7

hard drives, optical drives, USB drives