You can count on me
Early Computers
Computer Evolution
Awe Shucks, What a compliment!
Familiar words
100
"1101" (binary) in decimal
What is 13?
100
Digital may correspond to just ones and zeros to portray discrete, precise numbers, whereas this kind of computing shows outputs as functions of different motions
What is analog?
100
The prediction that the number of transistors on a single chip would double every year (later modified to 18 months)
What is Moore's Law?
100
When Q becomes 1, Q bar becomes this
What is 0?
100
We can have an input here to save our data? that's amazing. I heard it also has two hands (sometimes 3!)
What is a clock?
200
A cartoon character, with only four fingers on each hand, might count like this to the number ‘10’?
What is
"1, 2, 3, 4, 5, 6 ,7, 10"
200
This machine, invented by Lord Kelvin (yes, the temperature dude), cleverly analyzed the rise and fall of tides, and broke down the patterns into a series of sine curves of various frequencies and amplitudes subduing “brass for brain in the great mechanical labour of calculating the elementary constituents of the whole tidal rise and fall.“
What is the Tide Predicting Machine?
200
Let's talk about the evolution of logic gates.
We went from relays Relays ⇒ ___ tubes ⇒ Transistors ⇒ Integrated circuits
What are vacuum tubes?
200
111010100's one's compliment
000101011
200
The interval during which the output changes and then comes back to its original value.
Also, Adrien Beltre has hit for it a record 3 times in the same ballpark (Global Life Stadium-Where Sue had her event)
What is a cycle?
300
Oh that's how you count to 10! (in hexadecimal)
what is
"1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F, 10"
300
Charles Babbage’s machine which calculated logarithms for specific logarithmic values and interpolated (or subtracted) those values logarithms to get other values.
It was never finished.
What is the difference engine?
300
Jack Kilby and Robert Noyce simultaneously worked to make multiple transistors from a single piece of silicon. They are now credited as co-inventors of this
What is the integrated circuit?
300
421’s nine’s complement
What is 578?
300
Here we have a good ole-fashioned R-S active-high Flip flop, where whatever Q is, Q-bar should be the opposite.
The empty spot in the bottom right of this truth table, where we have 1 and 1 for inputs, much like shoplifting is considered this
What is illegal (or Disallowed)?
400
A 24-bit word requires this many octal digits.
what is 8?
Each octal digit consitsts of 3 bits and 24/3 = 8.
400
This Charles Babbage machine which would be the closest thing to a digital computer the 19th century has to offer.
It has a store for memory, and a mill for math. Handling multiplication by repeated addition and division by repeated subtraction
What is the analytical engine?
400
This device was the very first commercial use of the transistor.
What is the hearing aid? (1952)
400
1010101's two's compliment
101011 (invert then add one)
400
Much like missing a base case, this problem will arise if we were to close this switch in hopes of creating an accumulating adder.
Infinite loop
500
1101101 as an octal representation.
What is 155?
500
A moth was extracted from a relay in the Harvard Mark II computer. This computer scientist was on staff and taped it to the logic board with the note "first actual case of a bug being found"
Who is Grace Hopper?
500
The time it takes for a change in the inputs to be reflected in the output. Measured in nanoseconds.
1 Nanosecond = one billionth of a second
What is propagation time?
500
Hardly a compliment, but that is an accurate term for this circuit, whereby Q and Q bar do compliment each other:
What is an edge-triggered D-type flip-flop?
500
maybe you have it as a fan setting, but in this case it's a circuit whereby the output feeds into the input and so on and so forth.
What is an oscillator?