A.I.S. Class 24: Outline I Learning Objectives for Chapter 3 I - - PowerPoint PPT Presentation

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A.I.S. Class 24: Outline I Learning Objectives for Chapter 3 I - - PowerPoint PPT Presentation

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A.I.S. Class 24: Outline I Learning Objectives for Chapter 3 I Hardware I Software I Systems Configuration I Group Work for Chapter 3 I XML & XBRL Dr. Peter R Gillett November 30, 2005 1 Learning Objectives for Chapter 3 I After studying

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A.I.S. Class 24: Outline

I Learning Objectives for Chapter 3 I Hardware I Software I Systems Configuration I Group Work for Chapter 3 I XML & XBRL

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Learning Objectives for Chapter 3

I After studying this chapter you should be

able to:

N describe various information technologies used for

data input

N explain in some technical detail the components of

a computer system

N explain the technologies used to process data N describe alternative computer output technologies N distinguish between systems software and

applications software

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Learning Objectives for Chapter 3

I After studying this chapter you should be

able to:

N describe the categories and functions of systems

software

N describe the categories and functions of

applications software

N briefly describe the issues surrounding systems

configurations.

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Hardware

I Input Technology I Processor Technology I Storage Technology I Output Technology

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Input Devices

I Keying devices (on-line or off-line) I Mouse (trackball, trackpad, trackpoint) I Light pens I Touch screens I Audio & video input I Bar code scanners, OCR & MICR I POS devices I Scanners

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Processor Technology

I CPU (registers, control unit, ALU) I Clock I Cache memory I Data bus, address bus, control bus I ISA, PCI, USB, FireWire, Blue Tooth I Processors

N 8088, 8086, 80186, 80286, 80386, 80486 DX & SX N Pentium, Pentium Pro, Pentium MMX, Pentium II, Pentium II

Xeon, Celeron, Pentium III, Pentium 4 (3.4 GHz)

N AMD Athlon XP, AMD Duron, Motorola PowerPC G4 (RISC)

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Storage Technology

I ROM, RAM, DRAM, SDRAM, ECC, RDRAM,

DDR SDRAM, SRAM, Cache

I Magnetic tape I Hard disks, floppy disks I EIDE (Ultra ATA), Ultra2 SCSI I Iomega ZIP drives I USB drives (micro, pen, flash drives) I CD-ROM, CD-R, CD-RW I DVD, DVD-R/W, DVD+RW, DVD-RAM

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Output Technology

I Printers

N Dot matrix N Ink jet N Laser

I Video display

N PCI v AGP N VGA (640 x 480) N SVGA (800 x 600) N XGA (1024 x 768) etc. N TFT

I Sound cards, MIDI interfaces

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Software

I Systems Software I Programming Languages I Application Software

General Purpose Special Purpose

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Systems Software

I Operating systems

multitasking, multiprogramming, multiprocessing DOS, WINDOWS 3.1, 95, 98, ME, NT, 2000, XP,

OS/2 Warp 4, Mac OS X, Unix, Linux

GUIs (as opposed to CUI)

I Utilities (e.g., virus-scans, disk formatters) I Language translators

assemblers, compilers, interpreters

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Programming Languages

I First, second, third, fourth generation I Object-oriented programming languages

(JAVA, C++)

encapsulation polymorphism inheritance

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Application Software

I General purpose

word processing spreadsheets presentation graphics flowcharting databases communication

  • rganizers
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Application Software

I Special purpose

low-end accounting packages

N Quicken, Quickbooks Pro, Microsoft Money, PEACHTREE

mid-range packages

N Great Plains Dynamics (now Microsoft), ACCPAC Pro,

Platinum

high-end packages

N SAP, Oracle, PeopleSoft, JD Edwards (now PeopleSoft),

BAAN (now SSA Global)

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Systems Configurations

I Supercomputers I Mainframes I Minicomputers I Servers I Workstations I Desktops I Laptops (notebooks) I Palmtops (PDAs)

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Group Work for Chapter 3

I Discussion Questions I Problems and Exercises 3

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XML & XBRL

I SGML

HTML - format XML - content

N XBRL – financial community

I XBRL

Fast, accurate searches Drill-down Less data re-entry User choice for disclosure

I Microsoft’s .NET initiative

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XML Documents

I Hierarchical I Self-describing I Directly usable over the Internet I Do not replace HTML I Standards promulgated by W3C I Convert to HTML, spreadsheet, etc. via XSLT I XML Schema – a new standard for defining

consistent structure

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XBRL

I XML-based taxonomy I Common business semantics I Variable output format I Currently:

Financial reporting taxonomies General ledger taxonomies

I Promulgated by XBRL International, created by

AICPA, www.XBRL.org

I Specification 2.1 issued December 2003

(revised November 2004)