Objectives: 

• Identify a computer as a machine that works with information.

• Reason about whether particular objects are or are not computers.

• Determine which information in a computing problem should be stored for later use.

• Explain the role that input and output take when computers are used to solve information problems.

• Select the inputs and outputs used to perform common computing tasks.

• Explain what the IOSP model is. 

• Propose and idea for a simple input/ output app

Key Vocabulary:

Computer - A machine that works with information

Algorithm - A list of steps or instructions written in human language that tells a person how to complete a task

Program - An algorithm that has been translated into commands a computer can understand (code)

UI - User Interface, pronounced YOU-EY

Hardware - the machines, wiring, and other physical components of a computer or other electronic system 

Software - the programs and other operating information used by a computer

Input - the information computers get from users, devices, or other computers 

Output - the information computers give to users, devices, or other computers 

Storage -  saving information to use in the future 

Processing - The thinking work computers do to turn input into output.  

Computers Through Time:

Thousands of years ago, people made devices like an abacus to help them calculate complex math.

In the 1600s computing became a profession and the word computer meant "a person who makes calculations." Computers (the people) used a tool called a slide rule to help them calculate.

In 1944 during World War II, the first electronic computer was made. It was called COLOSSUS MARK 1 and was used by the British government to crack secret German codes. 

In 1945, Americans created a faster computer called ENIAC.

Early computers were massive and took up entire rooms, they were used by large businesses, governments, or researchers.

The first mass-produced personal computer was the Apple II in 1977. Owners used them to play games or execute simple programs. 

What do computers look like now? How are they used?

Computers are made of 2 parts, hardware and software. Hardware is the physical parts of a computer, like the keyboard, mouse or screen. Software is the set of programs that tell a computer what to do. 

Input refers to the parts used to send information to the computer, like a keyboard, mouse, or game controller. It can also refer to information given to the computer by a person. 

Storage refers to the parts of the computer that store information, including hard drive, RAM, and USB drives. 

The processing parts of a computer run the programs and interpret the input and supply an output. Examples of these would be the central processing unit (CPU) or the graphics processing unit (GPU)

Output refers to the parts that the computer uses to send information to you. This includes a projector, monitor, printer, speaker, or headphones. 

The process is similar to digestion.  

IOSP stands for:

• Input

• Output

• Storage

• Processing

4 Types of Processing:

• if/then

• counting

• finding a match

• comparing

Sum up... What is the best way to describe a computer?

•  A machine that works with information to help people with thinking tasks

•  A machine that inputs, outputs, stores, and processes information

Complete the Google Slideshow worksheet with your partner. We will share out answers for discussion when everyone is finished. 

Standards: