Unit 1 Flash Cards

Question 1

How does a computer work with information?

Answer 1

Input -> processing/storage -> output

Question 2

What is Hardware?

Answer 2

• Physical parts required for a computer to run
• It is what makes your computer powerful

Question 3

What is Software

Answer 3

• Set of instructions that allows hardware to preform different tasks.
• “Soft”, as in can be changed
• The ability to run different software is what makes a computer flexible.

Question 4

Motherboard

Answer 4

• “Nervous system”
• The main circuit of the computer
• All parts are connect to it
• Allows communication between other parts of the computer

Question 5

CPU

Answer 5

• Central Processing Unit
• “brain”
• Executes all commands for the computer
• If it’s not on/dead, nothing will work
• Measured by speed in Hertz (MHz, GHz)

Question 6

GPU

Answer 6

• Graphic Processing Unit
• “eyes and muscle”
• Displays what you see, handles most heavy tasks
• Handles all visual data
• Measured by speed in Hertz (MHz, GHz)

Question 7

RAM

Answer 7

• Random Access Memory
• “Short term memory”
• Temporary space for the CPU to work
• Measured in Bytes

Question 8

Hard Drive

Answer 8

• “Long term memory”
• Storage space for all software (files, apps, programs, operating systems)
• Measured in Bytes

Question 9

Bit

Answer 9

• Each place value represents one
• (Binary digit)
• Can be a 0 or 1

Question 10

Byte

Answer 10

• 8 bits = 1 byte

Question 11

What is Creative Commons?

Answer 11

Creative Commons licenses give everyone from individual creators to large institutions a standardized way to grant the public permission to use their creative work under copyright law. (cc)

Question 12

What is RLE

Answer 12

• Run Length Encoding
• A method for compressing images by identifying if it runs black or white, where the first number in each row represents the run of white.

Question 13

Lossless Compression

Answer 13

Lossless compression is the type of compression where all the data is kept and you can get the original copy back however you still compress the data.

Question 14

Lossy Compression

Answer 14

Lossy compression is when data is lost while shrinking an image. Irreversible compression. Partial data discarding. Best used for: images and music. Lossy compression is typically never noticed.

Question 15

Abstraction

Answer 15

Pulling away unnecessary information/details.

Question 16

How many total numbers can be represented with an 10-bit binary (base-2) system?

Answer 16

1024