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Crash Course Test 5 and 6

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

The binary number 00101010, when converted to decimal is ____

a)

42

b)

85

c)

40

d)

41

2.

The acronym ALU stands for a computer's ______

a)

Air-Location-Unit

b)

Arithmetic-Logic-Unit

c)

Answering-Long-Unsolvedproblems

d)

Access-Long-Utensils

3.

The first complete ALU that fit entirely inside a single chip was released in _____

a)

1968

b)

1954

c)

1978

d)

1970

4.

The handling of all numerical operations in a computer is done by _____

a)

LSU

b)

DLC

c)

ALU

d)

ULC

5.

The addition of binary numbers can be described using four logic gates; _____

a)

Binary Adder

b)

Binary Fission

c)

Binary Subtracter

d)

Binary Code

6.

Remember that in binary, 1 and 0, respectively, are the same as ____

a)

true and false

b)

up and down

c)

side to side

d)

all of the above

7.

Which logic gate almost exactly describes the addition of two binary numbers?

a)

a random gate

b)

XOR gate

c)

ROX gate

d)

none of the above

8.

When adding two binary numbers, which logic gate is used to calculate the carry bit?

a)

I don't know

b)

THE gate

c)

AND gate

d)

FOR gate

9.

The circuit that sums A and B, and has two outputs, sum (S) and carry (C), is called _____

a)

half adder

b)

full adder

c)

quarter adder

d)

3/4 adder

10.

A digital circuit that sums two numbers, and includes a carry bit (C) as input is called _____

a)

full adder

b)

sided adder

c)

half adder

d)

none of the above

11.

Which type of memory, denoted RAM, stores values only when the power is on?

a)

Random Access Memory

b)

Reading Available Memory

c)

Both A and B

d)

None of the above

12.

Which type of memory can retain information without power?

a)

forgetting memory

b)

fragile memory

c)

persistent memory

d)

all of the above

13.

An OR gate, with the output fed back to one of the inputs, will _____

a)

permanently record a 1

b)

only record a 1 for a specific time

c)

permanently record a 0

d)

only record a 0 for a specific time

14.

An AND gate, with the output fed back to one of the inputs, will _____

a)

only record a 1 for a specific time

b)

permanently record a 1

c)

only record a 0 for a specific time

d)

permanently record a 0

15.

The AND-OR latch is also known as an S-R latch due to the two inputs: _____ and ______

a)

Flick & Switch

b)

Switch and Turn on

c)

Set and Reset

d)

None of the above

16.

For an AND-OR latch, if set and reset are both 0, the circuit outputs _____

a)

whatever it was put in previously

b)

0

c)

1

d)

anything

17.

The action of putting data into memory is called ______

a)

answering

b)

writing

c)

describing

d)

playing

18.

The action of getting data out of memory is called ______

a)

telling

b)

answering

c)

writing

d)

reading

19.

A gated latch, where the “gate” can be opened or closed, has two inputs: _____ and ______

a)

data in and write enable

b)

open and close

c)

up and down

d)

close and open

20.

For a gated latch, a value is written to memory when ______

a)

set to 80

b)

write enable is set to 1

c)

write enable is set to 0

d)

set to 10