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2 nd Semester Exam

2 nd Semester Exam. Study Guide. Binary- what is it? . A binary number is a number expressed in base-2 numeral system, as a 0 and 1. The binary system is used internally by almost all modern computers and phones. . Binary .

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2 nd Semester Exam

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  1. 2nd Semester Exam Study Guide

  2. Binary- what is it? • A binary number is a number expressed in base-2 numeral system, as a 0 and 1. • The binary system is used internally by almost all modern computers and phones.

  3. Binary • Create a binary chart to help you figure out how to represent numbers in binary form.

  4. What is the backbone of a computer?What helps it work? • Operating systems are the digital backbone of the computer. DOS is an early example and stands for “disk operating system” because you had to pop in a floppy disk to get it booted up. • Newer operating systems are Android, BSD, iOS, Linux, OS X, QNX, Microsoft Windows,[3]Windows Phone, and IBM z/OS.

  5. How has your ability to access information changed in the digital age? • What are the things that have helped you learn…..

  6. What type of software are all the programs listed below? • Excel • MS Word • Internet Explorer • Safari • APPLICATIONS!

  7. Every photo is made up of tiny…. • Pixels...if you zoom way in on a photo or any other image on a screen you can see them.

  8. HTML Tags • Most HTML tags have an opening and closing.

  9. Programming • IF - Useif to specify a block of code to be executed, if a specified condition is true. The If statement is a Decision statement. • DECISION- the computer will do one thing or another depending upon user input. • METHOD- a technique to make an object perform a certain behavior

  10. Programming Loops • for - loops through a block of code a number of times • for/in - loops through the properties of an object • while - loops through a block of code while a specified condition is true • do/while - also loops through a block of code while a specified condition is true

  11. These examples might help you remember…. • for – I will walk the course 5 times…example of FOR loop • while – I will walk the course while it is sunny… example of WHILE loop • if - I will walk the course IF my shoes are new….example of IF statement.

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