Unit 1- Recognizing Computers

 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

 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!

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

 In groups of 2, make a computer history timeline of events  Use an online timeline maker  Mark at least 10 significant events ◦ At least 2 event from the following decades:  2000’s, 90’s, 80’s, 70’s  1 significant tech event from your life ◦ Include a picture of the device for each ◦ Use your own words to describe each

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

 Massive  ENIAC  Designed for military & government

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

 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

 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.

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

 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.

 AOL (as a service) ◦ 1993  Internet (as we know it) ◦ Mid 1990’s  iPod ◦ 2001  First Smartphone ◦ 1994 ◦ in US

 Computers and their parts have gotten smaller & more powerful  Other devices are now considered computers ◦ Phones, gaming systems, Tablets, etc.  Work is more efficient, communication has changed/grown, entertainment changed

 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

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

 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

 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  What computer took up the size of a city block back in the 40’s & 50’s? ◦ ENIAC  What four function does ever computer perform? ◦ Input data, process data, output data, store data

 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

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

 Personal computer- Windows PC or MAC  Individual user  Case/monitor or all-in-one

 Windows PC or Mac  Portable- They use a battery  As powerful as a desktop  Touchpad for mouse/ Touchscreen

 Laptop running Google’s Chrome OS  Fast boot  Apps instead of software  Cloud-based storage  Use while connected to Internet

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

 Using store ads, find the lowest price of each: ◦ Desktop with monitor ◦ iMac ◦ Laptop ◦ MacBook ◦ Chromebook ◦ Android Tablet (low & high price) ◦ iPad ◦ Windows Tablet  Report the brand & model # with the price

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

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

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

 Performs functions for computers on a network (provides a service) ◦ Hold Files/Data ◦ Handle ◦ Web Site

 PC connects to it  Huge amounts of data processing  Hundreds of thousands $  Large institutions, hospitals & govt.

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

 Name some…

 Managing an airline reservation & ticketing system or patient records 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

 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, such as providing a website? ◦ Servers  What device would have Android OS on it? ◦ Smartphone or Tablet

Unit 1- Recognizing Computers