WorksheetsCrash Course Test 5 and 6
Total questions: 20
Worksheet time: 10mins
The binary number 00101010, when converted to decimal is ____
42
85
40
41
The acronym ALU stands for a computer's ______
Air-Location-Unit
Arithmetic-Logic-Unit
Answering-Long-Unsolvedproblems
Access-Long-Utensils
The first complete ALU that fit entirely inside a single chip was released in _____
1968
1954
1978
1970
The handling of all numerical operations in a computer is done by _____
LSU
DLC
ALU
ULC
The addition of binary numbers can be described using four logic gates; _____
Binary Adder
Binary Fission
Binary Subtracter
Binary Code
Remember that in binary, 1 and 0, respectively, are the same as ____
true and false
up and down
side to side
all of the above
Which logic gate almost exactly describes the addition of two binary numbers?
a random gate
XOR gate
ROX gate
none of the above
When adding two binary numbers, which logic gate is used to calculate the carry bit?
I don't know
THE gate
AND gate
FOR gate
The circuit that sums A and B, and has two outputs, sum (S) and carry (C), is called _____
half adder
full adder
quarter adder
3/4 adder
A digital circuit that sums two numbers, and includes a carry bit (C) as input is called _____
full adder
sided adder
half adder
none of the above
Which type of memory, denoted RAM, stores values only when the power is on?
Random Access Memory
Reading Available Memory
Both A and B
None of the above
Which type of memory can retain information without power?
forgetting memory
fragile memory
persistent memory
all of the above
An OR gate, with the output fed back to one of the inputs, will _____
permanently record a 1
only record a 1 for a specific time
permanently record a 0
only record a 0 for a specific time
An AND gate, with the output fed back to one of the inputs, will _____
only record a 1 for a specific time
permanently record a 1
only record a 0 for a specific time
permanently record a 0
The AND-OR latch is also known as an S-R latch due to the two inputs: _____ and ______
Flick & Switch
Switch and Turn on
Set and Reset
None of the above
For an AND-OR latch, if set and reset are both 0, the circuit outputs _____
whatever it was put in previously
0
1
anything
The action of putting data into memory is called ______
answering
writing
describing
playing
The action of getting data out of memory is called ______
telling
answering
writing
reading
A gated latch, where the “gate” can be opened or closed, has two inputs: _____ and ______
data in and write enable
open and close
up and down
close and open
For a gated latch, a value is written to memory when ______
set to 80
write enable is set to 1
write enable is set to 0
set to 10
