How
Microprocessors Work – Section 2
Review:
The four
major parts of a computer system (in order) are:
|
Part of the System |
Example of a component
that does that job
|
|
INPUT |
|
|
MEMORY |
|
|
PROCESSING |
|
|
OUTPUT |
|
The one thing that a computer does is __________________. The computer processes _________________ very quickly.
FETCH, DECODE, EXECUTE – Fill in the blanks while watching the video. There will be a quiz on this information on Friday. Paste this into your notebook AFTER the notebook check sheet and one blank page.
Where is the data
processed?___________________________
The microprocessor is made
of millions of tiny switches called
________________________ that execute millions of commands a second.
The three main functions of
the microprocessor are
1. _____________________
2. ______________________
3. ______________________
(1) _________________ picks
up and feeds information in the form of data from a software program to
(2)__________________. (2) ______________ has no memory and cannot remember
what it has done before. (2)__________________ will only follow instructions.
(2)_____________ figures out (using the software codes) what is supposed to
happen to the data and sends it to the correct function or register in
(3)____________________.
(3)____________________ uses
binary calculators to do the math and then puts the data back into memory. Data
is what the numbers are called. Software breaks instructions into simple
instructions. (1)_________________ picks up the data and sends to (2) _______________
to determine what type of math is required. (2)________________sends the data
to (3)___________________ where the math is completed. Every dot of the binary
coded data is passed through fetch, decode and execute.
Microprocessors do simple
__________________ very quickly – millions of times a second. The data
that is processed consists of numbers. The microprocessor (1)__________es,
(2)_______________s, and (3)_____________(s) the software instructions that
make computers useful.
FOLLOW-UP – Draw a
diagram showing the flow of data through the complete computer system including
the details of the microprocessor you have just learned about. Put into the
notebook after this worksheet.