Unit 1

Question 1

What are the four things that are needed for a thing to be identified as a computer?

Answer 1

Input, Storage, Process, Output

Question 2

What is Input?

Answer 2

Information/data that a computer takes in.

Question 3

What is Storage?

Answer 3

Information/data that a computer stores for later.

Question 4

What is Process?

Answer 4

Information/data that a computer computes.

Question 5

What is Output

Answer 5

Information/data that a computer outputs to people or other computers

Question 6

Define CPU

Answer 6

Central processing unit, works as the brain of the computer

Question 7

Define GPU

Answer 7

Graphics processing unit, works as the muscles of the computer

Question 8

Define Hard Drive

Answer 8

Long term memory of a computer

Question 9

Define RAM

Answer 9

Random access memory, workspace for the computer to work at

Question 10

Define Motherboard

Answer 10

The nervous system of the computer

Question 11

Define Hardware

Answer 11

The physical parts of a computer

Question 12

Define software

Answer 12

The programming and code in a computer

Question 13

Define bit

Answer 13

A binary digit that will either be a zero or a one

Question 14

Define byte

Answer 14

This is made out of 8 bits.

Question 15

Converting binary to decimal

Answer 15

1001001 -> 73, finding the value of zeros and ones to make a mathematical number

Question 16

Converting decimal to binary

Answer 16

73 -> 1001001, using a mathematical number and turning that into zeros and ones

Question 17

What is an overflow error?

Answer 17

It is what happens when there is something too big for the computer to represent

Question 18

What is a rounding error?

Answer 18

It is when a computer cannot exactly represent a number given.

Question 19

What is ASCII

Answer 19

It is a system used to represent text and symbols using binary code

Question 20

Define abstraction

Answer 20

A method that pulls out unnecessary details when using code such as binary to ASCII to text.

Question 21

Pixel

Answer 21

A small box in the computer that makes a color determined by the binary code given

Question 22

sampling frequency

Answer 22

how many pixels that are used in an image, the more pixels means a higher quality image can be made.

Question 23

Analog vs Digital

Answer 23

An analog image is either made by hand or drawn while a digital image is made up using pixels.

Question 24

What is RLE?

Answer 24

It is a method of send text but compressed with symbols or other with a key to help decipher it.

Question 25

Define Lossless compression

Answer 25

Compressing data, making the file size of it smaller while not losing any of the information and it can be restored to its original version

Question 26

Define Lossy compression

Answer 26

Compressing data, making the file size a lot smaller but it loses a little information and it cannot be restored to its original version

Question 27

Define Intellectual property

Answer 27

This is an idea or design that someone has the rights to patent or copyright it.

Question 28

Define Copyright

Answer 28

It is the right of a content maker or creator who reserves all the rights to a piece of work which no one else can steal.

Question 29

What is Creative Commons

Answer 29

It is similar to copyright but allows some of the things in the content to be used with restrictions.