1.1 system architecture Flashcards
1
Q
What is a CPU
A
A Central Processing Unit
2
Q
What is the MAR
A
A Memory address register
3
Q
What is the MDR
A
A memory data register
4
Q
What happens in the fetch stage
A
Fetches data from main memory to the CPU
5
Q
What is the PC
A
Program Counter
6
Q
What does Hertz measure
A
Fetch-execute cycles per second
7
Q
How many levels of cache are there
A
3
8
Q
In simple terms, what is a core
A
A complete replica of the CPU
9
Q
by how much does the PC increment by each fetch-execute cycle
A
1
10
Q
what does ALU stand for
A
Arithmetic Logic Unit
11
Q
the prefix “giga-“ means
A
billion
12
Q
give an example of a fixed program computer
A
a calculator
13
Q
true or false? data is held in hexadecimal form
A
false
14
Q
is a touchscreen input or output
A
both
15
Q
what is a microcontroller
A
a CPU with an integrated memory
