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WorksheetsCrash Course Computer Science #7 - The CPU
Total questions: 15
Worksheet time: 10mins
Which of the following have we already seen in a previous episode? Select all that apply.
ALU
Registers
RAM
CPU
What is the CPU's job?
store memory
facilitate calculations
generate electrical power
execute programs
A high-level view of looking at the functional blocks of a CPU rather than all the individual wires is called...
microarchitecture
macroarchitecture
synthesization
memory
How many lettered memory registers were shown?
(a)
The first phase that allows the CPU to retrieve its first instruction from RAM.
Fetch Phase
Decode Phase
Execute Phase
In the Decode Phase, the first 4-bits will...
correspond to the instructions, loading a value from RAM
open a new program upon start-up
create a new logic gate that circles back to the ALU
The Execute Phase is when...
the instructions are actually performed
when the electric current is killed, or turned off
instructions are retrieved from RAM
information is read in the instruction address register
The Control Unit is comparable to a ______, directing all of the different parts of the CPU.
conductor of an orchestra
chef in a restaurant
secretary in an office
general of the military
In the 3rd example of the Fetch/Decode/Execute cycle, it introduces the ____ into the Control Unit's abilities, enabling calculations to occur.
ALU
RAM
memory
transistors
The final example of the Fetch/Decode/Execute cycle showed...
adding values from two registers together
storing values into RAM
using the ALU to re-write the Register C value
The responsibility of keeping the CPU ticking along falls to a component called the _____.
clock
ALU
RAM
memory
Clock speed is measured in Hertz. One Hertz means...
one cycle per second
one cycle per minute
10 cycles per second
5 cycles per minute
The Intel 4004 CPU released in 1971 had a clock speed of (a) kiloHertz.
Overclocking is when the clock speed is (a) , while (b) is when the clock speed is (c) .
What will the next episode be about?
software
ROM
operating systems
the internet
