WorksheetsHOW COMPUTERS WORK
Total questions: 35
Worksheet time: 13mins
What does CPU stand for?
computers processing unit
central planning utility
central processing unit
computer process unit
True or False: Computers encode each signal as either a 1 or a 0?
True
False
The smallest piece of digital information is called what?
Byte
Bit
Nibble
Fraction
Megabytes is approximately how many bytes?
1,000 bytes
100,000 bytes
1 Million Bytes
1 Billion Bytes
According to the video, INPUT DEVICES do what?
Calculates information
Convert physical input to binary information
Store information
Converts information to physical output
According to the video, OUTPUT does what?
Calculates information
Convert physical input to binary information
Stores information
Converts information to physical output
When you type a letter on the keyboard, how is that letter sent to the CPU?
As a series of dots and dashes
The keyboard draws the letter on the CPU's whiteboard
As ones and zeroes (binary)
Different colors for different letters
According to the video, when the CPU understands that you typed the letter 'B', it does what?
Retrieves from memory the instructions on how to draw the letter 'B', pixel by pixel.
The CPU asks the keyboard to repeat, just to make sure there's been no misunderstanding.
The CPU waits to see if you will press 'B' again.
Re-converts the binary version of 'B' back to the physical, and pushes the key back up.
If I can't see software, what is software?
The games, the programs, the code
The rubbery parts of the computer case
When you turn the speakers down low
The data that you store on a USB drive
When you look inside of a computing device, what do you see, or what do we call the things you can see?
Operating system
Hardware
Software
A vision of my dad asking me why I took the computer apart
Select all of the statements that are TRUE about a CPU.
It has circuits to do simple math and logic
It has circuits to send and receive information to and from other parts of the computer
It receives simple commands to tell it which circuit to use
None of these
What's a good explanation for the difference between hardware and software?
Hardware you can touch; software tells the computer what to do
Hardware is software that has been left outside in the sun too long
Hardware is the input, and software is the output
There is only one software application that can work on the hardware
The Operating System of a computer is... what?
Special programs like Google Docs, Google Sheets, and Google Slides
Special programs that are used in the operating room of a hospital
The master program that manages how software uses the hardware of a computer
A program that manages separate user accounts on a computer
When you think your computer is running many programs at once, in reality...
...it's the opposite. Many programs are causing the operating system to do whatever they want it to do.
...it's many tiny squirrels who are deciding what programs to run
...the computer is time-traveling to a point in the future when your computer has finished running your program
...it's the operating system that is quickly switching between programs
A single "wire" in a computer can represent how many different values?
2 (on, off)
3 (yes, no, maybe)
1 (just one)
0 (none)
Modern circuits can perform _______________ calculations per second.
billions
hundreds
millions
two
Software is
Keyboard, Mouse, Monitor
Microsoft Word, Google, Operating System
Keyboard, Google Docs, Mouse
Microsoft Word, speakers, Snipping Tool
Which is permanent?
memory
storage
Which is temporary?
memory
storage
Which logic gate will provide the opposite result of the input?
NOT
AND
OR
CIRCUIT
Which logic gate would require BOTH inputs to be "on" before it will produce an "on" result?
NOT
AND
OR
CIRCUIT
INPUT #1: ON
INPUT #2: OFF
For an "OR" gate, this would produce which result?
ON
OFF
AND
NONE OF THESE ANSWERS
