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cottonseedfearnotElectronics - Devices

Nov 7, 2013 (3 years and 11 months ago)

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INFORMATION
TECHNOLOGY,
THE INTERNET,
AND YOU

© 2005 The McGraw
-
Hill Companies, Inc. All Rights Reserved.

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Competencies

Explain the five parts of an information system

Distinguish between application and system
software

Distinguish between special purpose and general
purpose application software

Identify the types of computers and
microcomputers

Describe the different types of hardware


© 2005 The McGraw
-
Hill Companies, Inc. All Rights Reserved.

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Competencies cont.

Define data and describe files

Explain connectivity and the wireless revolution

Describe the Internet and the Web


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-
Hill Companies, Inc. All Rights Reserved.

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Five Parts of an Information

System

1.
People

2.
Procedures

3.
Software



4.
Hardware

5.
Data

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Hill Companies, Inc. All Rights Reserved.

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People

Most important part of any system

Contact is …

Direct

Indirect

Computer uses

Business & Entertainment

Education & Medicine


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-
Hill Companies, Inc. All Rights Reserved.

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Software

Programs

Instructions

Two major kinds of software

System Software

Application Software

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Hill Companies, Inc. All Rights Reserved.

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System Software

A collection of programs

Enables the application software to interact with
the hardware

Background software that helps the computer
manage its own resources

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-
Hill Companies, Inc. All Rights Reserved.

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“End
-
user” software

Two major categories

General purpose

Special purpose


Application Software

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Hill Companies, Inc. All Rights Reserved.

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Hardware

Equipment that processes the data

Controlled by software

Physical devices

Keyboard

Mouse

Monitor

Other devices



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-
Hill Companies, Inc. All Rights Reserved.

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Types of Computers

Supercomputers

Mainframe computers

Minicomputers

Microcomputers


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Hill Companies, Inc. All Rights Reserved.

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Supercomputers

High capacity

Used by large organizations

Tracking space

Tracking weather

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-
Hill Companies, Inc. All Rights Reserved.

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Mainframe Computers

Occupies specially wired, air
-
conditioned rooms

Capable of great processing speeds and data
storage

Not as powerful as supercomputers

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Hill Companies, Inc. All Rights Reserved.

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Minicomputers

Known as midrange computers

Medium
-
size companies

Used by departments of large companies

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Hill Companies, Inc. All Rights Reserved.

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Microcomputers

Least powerful

Widely used

Four types

Desktop

Notebook or laptop

Tablet PC

Handheld

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-
Hill Companies, Inc. All Rights Reserved.

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Microcomputer Hardware

System unit

Input/output devices

Secondary storage

Communications

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Hill Companies, Inc. All Rights Reserved.

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Data

Raw, unprocessed facts

Processing creates information

Stored electronically in files

Document files

Worksheet files

Database files

Presentation files

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-
Hill Companies, Inc. All Rights Reserved.

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Connectivity, the Wireless
Revolution, and the Internet

Connectivity

Sharing of information

Wireless communication is becoming popular

Computer networks

Connected communication system of computers

Largest network is the Internet

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-
Hill Companies, Inc. All Rights Reserved.

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A Look to the Future

Computer Competent

The Internet & the Web

Powerful software & hardware

Privacy & security

Organizations

Changing Times

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-
Hill Companies, Inc. All Rights Reserved.

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Key Terms

application software (9)

basic application (9)

chassis (12)

communication device
(14)

compact disc (CD) (14)

computer competency (3)

computer network (16)

Computing Essentials
CD (8)

connectivity (16)

Data (5)

database file (15)

desktop computer (11)

device driver (9)

digital versatile disk
(DVD) (14)

digital video disc (DVD)
(14)

document file (15)

© 2005 The McGraw
-
Hill Companies, Inc. All Rights Reserved.

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Key Terms

end user (4)

floppy disk (14)

general
-
purpose (9)
application

handheld computer (11)

hard disk (14)

hardware (5)

information (4)

information system (4)

information technology
(IT) (5)

input device (12)

Internet (16)

keyboard (12)

laptop computer (11)

mainframe computer (11)

memory ( 12)

microcomputer (11)

© 2005 The McGraw
-
Hill Companies, Inc. All Rights Reserved.

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Key Terms

microprocessor (12)

midrange computer (11)

minicomputer (11)

modem (14)

monitor (12)

mouse (12)

network (16)

notebook computer (11)

operating system (9)

optical disk ( 14)

output device (12)

palm computer (11)

people (4)

personal digital assistant
(PDA) (11)

presentation file (15)

primary storage (12)

printer (12)

© 2005 The McGraw
-
Hill Companies, Inc. All Rights Reserved.

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Key Terms

procedures (4)

program (4)

random access memory
(RAM) (12)

secondary storage device
(14)

service program (9)

software (4)

specialized application
(10)


special
-
purpose
application (10)

supercomputer (11)

SimNet Concepts (8)

system cabinet (12)

system software (9)

system unit (12)

tablet PC (11)

© 2005 The McGraw
-
Hill Companies, Inc. All Rights Reserved.

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Key Terms

temporary storage (12)

utility (9)

video display screen (12)

Web (16)

wireless revolution (16)

worksheet file (15)

World Wide Web
(WWW) (16)


© 2005 The McGraw
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Hill Companies, Inc. All Rights Reserved.

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FAQs

What is an information system?

What is IT?

How does raw data become information?

What is an operating system?

What are specialized applications? Please give
some examples.

Is the Internet the same as the World Wide Web?

© 2005 The McGraw
-
Hill Companies, Inc. All Rights Reserved.

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Discussion Questions

How are you using information technology?

Explain the difference between system and
application software.

Describe some of the uses for handheld
computers.

Why is the wireless revolution so important?