Exploring Computer Science- state test reviews

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Linear search

Looking through a sorted list one item at a time- inefficient

Output Devices

Monitor, speakers, printer

Hardware

The physical (tangible) parts of a computer

Binary search

Splitting a list into half, eliminating part, then repeating

Algorithm

The steps to solve a problem

Input Devices

Mouse, keyboard, microphone

Information

Numbers that have been analyzed- more useful

communication- good outcome

Smaller world (globalization)

Search engine

Special type of web page that finds other pages using keywords

Random Access Memory- RAM

runs programs, primary memory

email

businesses prefer this method of communication

Internet speed- increase or decrease

May increase or decrease based on type of connection, number of servers, etc.

Processor

Brain of the computer. Speed measured in Hertz or mHz

intelligent machine

A machine that can think for itself-- computers aren't there yet (in my opinion)

Computational Thinker

Someone who can think through problems the way a computer does- or can set a problem up in a way a computer can solve it

face-to-face communication

Still important today, but less common with other methods of communication

size of electronic storage- smallest to largest (bit-tera)

bit, byte, kilobyte, megabyte, gigabyte, terabyte

Computer

Machine that (1) receives input, (2) processes information, (3) gives output and can (4) store or save files.

cloud storage

stored through a web page- on a server

variable

a container in programming- used for point/score keeping

node

a location on a spanning tree

Byte

eight 0 or 1 digits

thumb drives

flash storage

Bit

single 0 or 1 digit

word processing

software you would use to write an essay

hard drive

storage built into the computer- usually magnetic

communication- bad outcome

Privacy issues, people have fewer social skills

Software

Programs on the computer

Videoconferencing

Programs such as skype or face time

Sorting

Putting things into an order. Common algorithms: Selection Sort, Quick Sort, Bubble sort

Data

Raw numbers-- not analyzed or as useful

broadcast

Sending a signal

iteration

To repeat or loop

conditional

an "if" statement-- or program that excuses only sometimes.

Hyperlinks

Things you click on to jump to another page or spot

What digits are used in binary system?

0 and 1

The World Wide Web (WWW) & Internet

Two different things- Internet is bigger, and includes the Web

Problem Solving Process

Understand the problem, Plan the solution, carry out the plan, review and discuss solution.

CPU

Brain of the computer- speed measured in Hertz

Recursion

Breaking a problem into parts

Computers -are they smart?

No, they just follow directions

Binary

Numbering system a computer uses

Presentation Software

PowerPoint is an example of presentation software. Very useful for teaching a large group

Browser

Software used to view pages on the Web

Spreadsheet

Software you might use to make a budget or track money

Operating systems

iOs (ipad or iphone), linux, Windows10, Windows8, MacOS--all these are examples. An OS software helps a computer to boot up and run the other programs.

Minimal spanning tree

Fewest number of connections to link all locations in a graph

Cartesian coordinate plane

X axis from left to right, Y axis up and down. We use this in scratch to move a sprite to a specific location

What base 10 number does the string 00010 represent?

two

troubleshooting/debugging

Going through a program to fix errors.

reinitializing

Moving back to the starting position

Seventeen in Binary

10001

Turing

A _____________ Test is a way to test whether something you communicate with is a computer or a person.

storage devices- 4 types

Magnetic- hard drive, optical- CD or DVD, flash-thumb drive and cloud-google drive

Web 2.0

Interactive websites-- movement fueled by social media

CDs or DVDs

optical storage- uses lasers


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