IT 10103

1
IT 10103

• Introduction to Information Technology
• CHAPTER 01

2
Introduction to Computers

• What is Computer Literacy?
• It doesnt mean knowing how to use a particular
  program, it means knowing how to use a computer.
• Being car literate doesnt mean knowing how to
  drive the particular car you learned on, it means
  being able to get into any car on any road and
  drive.

3
Introduction to Computers

• List some ways that computers positively and
  negatively affect us today?

4
Introduction to Computers

• What is a Computer (Define it)?
• A computer is an electronic device, operating
  under the control of instructions stored in its
  own memory, that can accept data, process the
  data according to specified rules, produce
  results, and store the results for future use.

5
Introduction to Computers

• Although computers are thought of as a relatively
  recent innovation, the term computer has a long
  history. Prior to 1940, computer was a job title
  that referred to anyone performing calculations.

6
Introduction to Computers

• What is Data?
• A collection of unprocessed items
• Raw facts
• A single fact about something

7
Introduction to Computers

• What is Information?
• Processed Data
• Conveys meaning and is useful to one or more
  people

8
Introduction to Computers

• Computers process
• data (input) into information (output)

9
Introduction to Computers

• The Information Processing Cycle
• The first three operations (input, process, and
  output) are performed to convert data into
  information, while the fourth operation (storage)
  refers to a computers electronic reservoir
  capability.

10
Introduction to Computers

• Components of a Computer
• Hardware - is hard or tangible
• Software - is soft or intangible

11
(No Transcript)
12
Introduction to Computers

• Components of a Computer
• Input Devices
• Designed to transmit different types of data or
  to transmit data in different ways

13
Introduction to Computers

• Input Devices
• Six commonly used input devices
• the keyboard, mouse, microphone, scanner, digital
  camera, and PC video camera

14
Introduction to Computers

• Components of a Computer
• Output Devices
• Designed to transmit information to one or more
  people

15
Introduction to Computers

• Output Devices
• Three frequently used output devices
• the printer, monitor, and speakers

16
Introduction to Computers

• Components of a Computer
• System Unit
• A case that contains the electronic components of
  the computer and houses the motherboard

17
Introduction to Computers

• Components of a Computer
• Motherboard
• The central connection point for all computer
  components

18
Introduction to Computers

• Components of a Computer
• Storage Devices
• Holds data, instructions, and information for
  future use.

19
Introduction to Computers

• Components of a Computer
• Storage Media
• Holds data, instructions, and information for
  future use.

20
Introduction to Computers

• Storage Media
• Floppy Disks, ZIP Disks, CD-ROM, CDRW, DVDR,
  DVD-R, DVDRW, USB Flash Drive, Memory Cards, Hard
  Drives

21
Introduction to Computers

• Components of a Computer
• Communication Devices
• A hardware component that enables a computer to
  send (transmit) and receive data, instructions,
  and information to and from one or more computers.

22
Introduction to Computers

• What is a User?
• Anyone who communicates with a computer or
  utilizes the information it generates.

23
Introduction to Computers

• Advantages of using a Computer
• Speed
• Reliability
• Consistency
• Storage
• Communications

24
Introduction to Computers

• Consistency GIGO
• (Garbage In Garbage Out)

25
Introduction to Computers

• Disadvantages of using a Computer
• Violation of Privacy
• Impact on Labor Force
• Health Risks
• Impact on the Environment

26
Introduction to Computers

• Networks and the Internet
• A Network is a collection of computers connected
  together via communication devices and
  transmission media.
• The Internet is a worldwide collection of
  networks that communicate with computers
  worldwide.

27
Introduction to Computers

• World Wide Web
• A worldwide collection of documents that reside
  on the Internet.

28
Introduction to Computers

• Computer Software
• A series of instructions that tells a computer
  what to do and how to do it called a program.

29
Introduction to Computers

• GUI (Graphical User Interface)
• Pronounced gooey
• Interact with software using text, graphics, and
  visual images such as icons

30
Introduction to Computers

• Icon
• A miniature image that represents a program, and
  instruction, or some other object. You use a
  mouse to select or activate an icon

31
Introduction to Computers

• Icon Project
• On a sheet of paper draw an icon for three
  commonplace activities and explain why you choose
  that particular image to represent that activity.
• (10-15 Minutes)

32
Introduction to Computers

• System Software
• Programs that control or maintain the operations
  of computers

33
Introduction to Computers

• Operating System
• A set of programs that coordinates all the
  activities among computer hardware devices.

34
Introduction to Computers

• Utility Program
• Utility programs are used for maintenance-type
  tasks, such as managing disk drives, printers,
  and other devices. Other tasks handled by utility
  programs include viewing files, compressing
  files, diagnosing problems, uninstalling
  software, scanning disks, defragmenting disks,
  backing up files and disks, checking for viruses,
  and displaying screen savers.

35
Introduction to Computers

• Application Software
• Programs designed to make users more productive
  and/or assist them with personal tasks.

36
Introduction to Computers

• Installing and Running Software
• Installing is the process of setting up software
  to work with the computer.
• Running software is the process of loading, and
  executing software by the computer.

37
Introduction to Computers

• Software Development
• Programming instructions to form a software
  program for use on a particular computer(s)

38
Introduction to Computers

• Computer Categories
• Personal Computer
• A computer that can perform all of its inputs,
  processing, output, and storage activities by
  itself.

39
Introduction to Computers

• Computer Categories
• Desktop Computer

40
Introduction to Computers

• Computer Categories
• Notebook Computer

41
Introduction to Computers

• Computer Categories
• Tablet Computer

42
Introduction to Computers

• Computer Categories
• Handheld (PDA) Computer

43
Introduction to Computers

• Computer Categories
• Smart Phone Computer

44
Introduction to Computers

• Computer Categories
• Smart Watch Computer

45
Introduction to Computers

• Computer Categories
• Mid-Range Server Computer

46
Introduction to Computers

• Computer Categories
• Mainframe Computer

47
Introduction to Computers

• Computer Categories
• Super Computer

48
Introduction to Computers

• Computer Categories
• Embedded Computer

49
Introduction to Computers

• Information System
• Hardware
• Software
• Data
• People
• Procedures

50
Introduction to Computers

• Computer Usage
• Home User
• Small Office/Home Office User
• Mobile User
• Power User
• Large Business User

51
Introduction to Computers

• Computer Applications in Society
• Education
• Finance
• Government
• Health Care
• Science
• Publishing
• Travel
• Industry

52
Introduction to Computers

• Questions?