1. Unit 1- Recognizing Computers

2.  Understand the importance of computers  Identify significant times in computer history  Understand how computers developed into what they are today  Describe how data is represented  Define computers & computer systems  Classify different types of computers

3.  Deals with all aspects of managing and processing data with computerized systems  In our daily activities ◦ Drives the systems we use to learn, solve problems, and communicate ◦ We’re dependant on technology  IT affects all fields of work & organizations  No matter what career path you choose, a solid IT background will be at your advantage!

4.  A computer is a person, instrument, or machine that gathers, processes, and stores information.

6.  In groups, make a computer history timeline of events  Use an online timeline maker, poster paper, Word, etc.  Mark at least 10 significant events ◦ Use your own words to describe

7.  Charles Babbage ◦ Designed a steam- powered calculator called the Difference Engine in 1821. ◦ His next idea was the Analytical Engine (1856), designed to perform any kind of mathematical calculation.

8.  Massive  ENIAC  Designed for military & government

9.  In 1943, the British built the first “Colossus” computer.  Used to decipher encrypted teleprinter messages sent by the Germans during World War II.

10.  The first computer that most individuals could afford was the Altair 8800, built in 1975 by MITS.  No keyboard or screen ◦ Information was entered by clicking switches

11.  Steve Jobs and Steve Wozniak created the first user-friendly personal computer, called the Apple, with a built-in keyboard, display screen, and storage unit. ◦ The term personal computer refers to a computer designed to be used by one person at a time.

12.  Bill Gates worked with IBM ◦ Developed DOS  IBM computer in 1981 released  Pictured- $3500

13.  IBM made the general design available to competing companies, resulting in many clones or “compatibles.”  Today, the term PC often refers to computers running Microsoft’s Windows operating system.

14.  Who created the first user-friendly computer? ◦ Steve Jobs & Steve Wozniak  What term describes a computer design made available to other manufacturers? ◦ Compatible or clone

16.  Same as before…  Receives data (INPUT), processes data, stores data, produces a result (OUTPUT)  Computer includes: ◦ Hardware ◦ Software ◦ Data ◦ Peripherals

18.  The use of the binary number system with two values: 0 and 1.  1= ON (electricity)  0= OFF (no electricity) What Counting to Ten Looks Like Decimal: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 Binary: 0, 1, 10, 11, 100, 101, 110, 111, 1000, 1001, 1010

19.  What does PC stand for? ◦ Personal computer  In binary, what does a 1 mean? ◦ Voltage/electricity/On  Who is known as the father of computing? ◦ Charles Babbage  What are the four things any computer does? ◦ Receives data, processes data, outputs info, stores data  Who created the first user-friendly computer? ◦ Apple (Steve Jobs & Wozniak)

20. DirectionsTypes of Computers  In groups of 2, make a poster… ◦ Title of device ◦ Big picture of device ◦ It’s use & where it’s used ◦ Cost ($, $$, $$$, $$$$) ◦ Special Features  Desktop  Laptop/Notebook  Netbook  Tablets  Workstation  Servers  Handheld/Smartphone  Mainframe & Terminal  Super Computer  Embedded Computer  Music/Media Player  Game System  E-Book Reader

21.  Personal computer- PC or MAC  Individual user  Come in case/monitor or all-in-one

22.  PC or Mac  Portability ◦ Use a battery  Touchpad or Pointing Device

23.  NOT laptop replacement  Made for travel  Basic ◦ Check email ◦ Web ◦ Office ◦ No Multitasking

24.  Lightweight & smaller  Less powerful than laptop  Small Screen  Longer battery  No CD/DVD  Low in RAM (1GB)  Windows XP/7 Basic

25.  PC in smaller size  Many functions of PC ◦ Has memory, storage, CPU, touchscreen ◦ Apps, Internet, Email ◦ Android, iOS, Windows

26.  Cell phone runs computer applications ◦ Internet, camera, music, GPS, phone, email, text  Touchscreen or keyboard  Windows, iOS, Android

27.  E-book reader  Portable music player  Handheld game device

28.  Multiple CPUs, lots of RAM, multiple, high- capacity drives  Video Editing, CAD, Animation, Scientific, CSI, X-Ray

29.  Performs functions for computers on a network (provides a service) ◦ Hold Files ◦ Handle Email ◦ Web Site

30.  Connected to thin clients/PC’s  Huge amounts of data processing  Banks, statistics  Hundreds of thousands $  Large institutions & govt.  Airlines

31.  Large & fast  Perform BIG calc’s  Volumes of data  Millions of $$$  Government  Military  Research Labs  NASA

32.  Name some…

33.  Managing an airline reservation & ticketing system would be best performed by which class of computer? ◦ Mainframe  Which device would animators use to make CG effects for a movie? ◦ Workstation  What is the fastest type of computer? ◦ Supercomputer  Appliances have what kind of computer? ◦ Embedded

34.  What’s the biggest advantage of using a notebook? ◦ Portability  T/F. A server is dedicated to sharing resources & data. ◦ True  Which type of computer provides services to other PCs? ◦ Servers  What device would have Android OS on it? ◦ Smartphone or Tablet

35. Unit 1- Recognizing Computers