WorksheetsThe Central Processing Unit (CPU)
Total questions: 25
Worksheet time: 13mins
Which basic computer component takes in binary numbers and performs calculations?
a register
random access memory (RAM)
an arithmetic logic unit (ALU)
the hard drive
Which type of computer memory is small, fast, and useful for storing a single value?
a register
random access memory (RAM)
a hard disk drive
a solid-state drive
Which type of short-term computer memory can store a lot of numbers at different addresses?
a register
random access memory (RAM)
a hard disk drive
a solid-state drive
The CPU, which controls and executes operations, is an acronym for ___
the Chief Performance Unit
the Cardinal Preparation Unit
the Capital Progression Unit
the Central Processing Unit
A CPU's job is to execute programs, which are made up of a series of individual operations called ___
bits
instructions
bytes
directions
A high-level description of the CPU that focuses on functional hardware blocks is called ___
the CPU block diagram
the microarchitecture
a pipelined datapath
a circuit wiring diagram
In the example, the first four bits of the instruction data was used to store the ___
fetch phase
location of the data
operation code
instruction register
In the example, the final four bits of the instruction data was used to store the ___
fetch phase
location of the data
operation code
instruction register
An instruction address register is used to keep track of ____
the list of op-codes
where a computer is in its program sequence
current sets of instruction
memory addresses
The current instruction is stored in ____
register A
the op-code register
the instruction address register
the instruction register
The first phase of a CPU’s operation, where the first instruction is retrieved, is called ___
the search phase
the retrieval phase
the seeker phase
the fetch phase
The second phase of a CPU’s operation, where an instruction is interpreted, is called ___
the decrypting phase
the translation phase
the decode phase
the fetch phase
1110 in the last four bits of a "LOAD" instruction refers to a RAM address with a decimal value of ___
12
13
14
15
Instructions are decoded and interpreted by a Control Unit made out of ___
deduction circuits
logic gates
inference units
coherence ports
Performing the actions required by an instruction occurs during which phase of the CPU cycle?
the action phase
the performance phase
the decode phase
the execute phase
To complete an execute phase, the value in the Instruction Address Register is ___
reset to zero
cleared
incremented by 1
set to 1
The Control Unit directs all of the different parts of the CPU, comparable to ___
the conductor of an orchestra
a crossing guard
a traffic light
a metronome
1111 in the last four bits of a "LOAD" instruction refers to a RAM address with a decimal value of ___
12
13
14
15
How many values can be encoded by two bits?
1
2
4
8
When the ALU was configured to add 3 and 14, the output was the binary value ___
00001001
00010001
00010011
00011001
Like a Roman galley drummer, which component triggers an electrical signal at a precise and regular interval?
the clock
the metronome
the temporal register
the spedometer
The clock speed is measured in metric units of frequency, where one cycle per second is called ___
one byte (B)
one hertz (Hz)
one kilobyte (kB)
one kilohertz (kHz)
What was the clock speed of the first single-chip CPU, the Intel 4004, released in 1971?
740 hertz
740 kilohertz
740 megahertz
740 gigahertz
Modifying the clock to speed up the tempo of the CPU is commonly called ___
hyper-clocking
overclocking
tempo-adjusting
turbocharging
Many modern processors can adjust their clock speed based on demand, which is called ___
tuneable overclocking
active time-keeping
progressive temporal adjustment
dynamic frequency scaling
