Using Information Technology Chapter 1 Introduction to Information Technology. - презентация

1 Using Information Technology Chapter 1 Introduction to Information Technology

2 2 Copyright © Exclusive rights by The McGraw-Hill Companies, Inc. Related to previous Chapter 1

3 Introduction to Information Technology 3 Copyright © Exclusive rights by The McGraw-Hill Companies, Inc. 1.4 Where Is Information Technology Headed? Three Directions of Computer Development Miniaturization Speed Affordability Then (1946)Now

4 Introduction to Information Technology 4 Copyright © Exclusive rights by The McGraw-Hill Companies, Inc. Three Directions of Communications Development Connectivity Interactivity Multimedia Interactivity

5 Introduction to Information Technology 5 Copyright © Exclusive rights by The McGraw-Hill Companies, Inc. When Computers & Communications Combine: Convergence, Portability, & Personalization Convergence Portability Personalization

6 Introduction to Information Technology 6 Copyright © Exclusive rights by The McGraw-Hill Companies, Inc. E Also Stands for Ethics Speed and scale Unpredictability Complexity

7 Introduction to Information Technology 7 Copyright © Exclusive rights by The McGraw-Hill Companies, Inc. Onward: Handling Information in the Era of Pervasive Computing Learn to deal with information overload; ignore Have a strategy to memorize information: reduce dependence on technology Learn how to make your multitasking efficient

8 Introduction to Information Technology 8 Copyright © Exclusive rights by The McGraw-Hill Companies, Inc. Onward: Handling Information in the Era of Pervasive Computing Be aware that smart mobs could also be dumb mobs: Know when technology is being used against you.

9 Introduction to Information Technology 9 Copyright © Exclusive rights by The McGraw-Hill Companies, Inc. Concept Check What are the two key components of information technology? Computers and communications

10 Introduction to Information Technology 10 Copyright © Exclusive rights by The McGraw-Hill Companies, Inc. Concept Check What are the two key aspects of cyberspace? The Internet and the World Wide Web

11 Introduction to Information Technology 11 Copyright © Exclusive rights by The McGraw-Hill Companies, Inc. Concept Check What are the five sizes of computers from largest to smallest? Supercomputer, mainframe, workstation, microcomputer, microcontroller

12 Introduction to Information Technology 12 Copyright © Exclusive rights by The McGraw-Hill Companies, Inc. Concept Check What is a LAN? A local area network, which is a connected group of desktop PCs and other devices such as printers, normally located in an office or building

13 Introduction to Information Technology 13 Copyright © Exclusive rights by The McGraw-Hill Companies, Inc. Concept Check Which size of computer is also called an embedded computer? Microcontroller

14 Introduction to Information Technology 14 Copyright © Exclusive rights by The McGraw-Hill Companies, Inc. Concept Check What is the term for a computer used to hold collections of data and programs for connecting PCs, workstations, and other devices? Server

15 Introduction to Information Technology 15 Copyright © Exclusive rights by The McGraw-Hill Companies, Inc. Concept Check What are the five basic operations that computers have in common? Input, processing, storage, output, and communications

16 Introduction to Information Technology 16 Copyright © Exclusive rights by The McGraw-Hill Companies, Inc. Concept Check Which type of storage is composed of computer circuitry that temporarily holds data waiting to be processed? Primary storage (memory)

17 Introduction to Information Technology 17 Copyright © Exclusive rights by The McGraw-Hill Companies, Inc. Concept Check What computer device consists of electronic circuitry that executes instructions to process data? CPU (Central Processing Unit)

18 Introduction to Information Technology 18 Copyright © Exclusive rights by The McGraw-Hill Companies, Inc. Concept Check Are RAM chips used for primary or secondary storage? Primary - theyre also called memory chips.

19 Introduction to Information Technology 19 Copyright © Exclusive rights by The McGraw-Hill Companies, Inc. Concept Check What is the name of the main circuit board in the computer, to which everything else is attached via connections called ports? Motherboard

20 Introduction to Information Technology 20 Copyright © Exclusive rights by The McGraw-Hill Companies, Inc. Concept Check How many characters can be represented by a byte? A kilobyte? One character in a byte; 1000 in a kilobyte

21 Introduction to Information Technology 21 Copyright © Exclusive rights by The McGraw-Hill Companies, Inc. Concept Check What is the name for the unit of storage capacity representing one billion characters? One gigabyte

22 Introduction to Information Technology 22 Copyright © Exclusive rights by The McGraw-Hill Companies, Inc. Concept Check What is the name for any component or piece of equipment that expands a computers input, storage, and/or output capabilities? A zip-disk drive is an example of this type of component. Peripheral device

23 Introduction to Information Technology 23 Copyright © Exclusive rights by The McGraw-Hill Companies, Inc. Concept Check What type of software includes the operating system, the master control program that runs the computer? System software

24 Introduction to Information Technology 24 Copyright © Exclusive rights by The McGraw-Hill Companies, Inc. Concept Check What are three directions of computer development in future? Miniaturization, speed, and affordability

25 Introduction to Information Technology 25 Copyright © Exclusive rights by The McGraw-Hill Companies, Inc. Concept Check What are three directions of communications development? Connectivity, interactivity, and multimedia

26 Introduction to Information Technology 26 Copyright © Exclusive rights by The McGraw-Hill Companies, Inc. Concept Check What is a TV with Internet access an example of? Convergence