Bit by Bit
What two digits does binary use?
0 and 1
Which component executes program instructions?
CPU or Central Processing Unit
A keyboard sends your typing into the computer. Which computer function is this?
Input
How are the internet and the World Wide Web different?
Internet = connected network infrastructure. Web = linked pages/resources accessed over it.
“A monitor is an input device.” Correct the statement.
A standard monitor is an output device.
Convert binary 1011 to decimal.
11
Which component temporarily holds data that running programs need?
RAM or Random Access Memory
You save a photo so you can open it tomorrow. Which computer function is this?
Storage
What is the meaning of life?
42
“Hardware is the instructions, and software is the physical parts.” Correct the statement.
Hardware = physical parts. Software = programs/instructions.
Write decimal 19 in binary.
10011
What does the motherboard do?
Connects hardware components so they can communicate
You enter 6 × 7, and the calculator displays 42. Identify the input, processing, and output.
Input: numbers pressed
Processing: multiplication.
Output: 42.
The full government name for RAM
Random Access Memory
“My computer has lots of free storage, so it can’t run out of RAM.” Explain the mistake.
Storage and RAM have different jobs. Free drive space doesn’t guarantee enough working RAM.
What decimal number does 00101101 represent?
45
Why can replacing an HDD with an SSD help saved programs load faster?
SSDs generally access data faster and have no moving mechanical parts.
Your computer says storage full when you try to save a video. Which components are relevant, and what could you do?
HDD/SSD. Delete or move unneeded files, or add storage.
He is considered the Father of Modern Computing and helped decode messages in WWII
Alan Turing
“A touchscreen can only be an output device.” Explain the mistake.
It displays information and detects touch, so it provides output and input.
What is a Bit AND what is a Byte?
A bit is a single binary 1 or 0
A byte is a collection of 8 bits
Explain the different jobs of the CPU, RAM, and SSD when you open an application.
SSD stores the application. RAM holds the active info like what's on your desk. CPU executes instructions.
A smart thermostat senses temperature, uses a target setting, and controls heating. Explain how it performs all four computer functions.
Input: temperature set.
Processing: compare temperature with target.
Storage: target setting.
Output: heating control signal.
How many possible combinations can you get with 8 bits of binary?
256
“Windows and Google Chrome do the same job because both are software.” Explain the mistake.
Windows is an operating system that manages the computer. Chrome is an application for browsing the web.