Study Guide

Question 1

The electrically-controlled mechanical switches used in early computers were called...

Accepted Answer

Relays

Question 2

In 1847, who formalized a "Mathematical Analysis of Logic'?

Accepted Answer

George Boole

Question 3

You can think of a relay like a water faucet. The control is like the...

Accepted Answer

Faucet Handle

Question 4

A good relay in the 1940's might be able to flick back and forth

Accepted Answer

50 times per second

Question 5

What encodoing scheme, devised in 1992, included many languages?

Accepted Answer

all of the above

Question 6

Wich logic gate is commonly represented by a "Letter D" symbol?

Accepted Answer

AND

Question 7

Which logic gate is commonly represented by a "spaceship" symbol?

Accepted Answer

OR

Question 8

For the AND Boolean operation, the output is only true if both inputs are true

Accepted Answer

True

Question 9

What was the major limitation of the 7-bit ASCII system?

Accepted Answer

It was really only designed for english

Question 10

What are the three fundamental operations in Boolean Algebra?

Accepted Answer

All of the above

Question 11

Who said, "When anything went wrong with a computer, we said it had bugs in it."?

Accepted Answer

Grace Hopper

Question 12

The decimal system is known as...

Accepted Answer

Base-ten notation

Question 13

What type of "Bug" was pulled from the Harvard Mark II in September 1947?

Accepted Answer

Math

Question 14

Each of the binary digits 1 or 0 is called...

Accepted Answer

bit

Question 15

A NOT takes a single Boolean value, either true or false, and

Accepted Answer

negates it

Question 16

In 1906, what did Lee de Forest add to the Fleming valve?

Accepted Answer

Control Electro

Question 17

The only time this statement is false is if both inputs are false

Accepted Answer

True

Question 18

The binary number 101, when converted to base ten is...

Accepted Answer

5

Question 19

How was programmng done on the Colossus Mark 1?

Accepted Answer

Wires

Question 20

With a single transistor, if we turn the input on...

Accepted Answer

The output is also on because the current can flow through it

Question 21

In a 32-bit floating-point number, what is the first bit used for?

Accepted Answer

the sign of the number-positive

Question 22

Which Boolean operator is built from two transistors in parallel?

Accepted Answer

Orgate

Question 23

Which logic gate is commonly represented by a "triangle with a dot"?

Accepted Answer

NOT

Question 24

Completed in 1944, it was one of the largest electro-mechanical computers ever built:

Accepted Answer

Harvard Mark 1

Study Guide

Questions 24

Study Guide

Questions 24