Technology Guide 1 - PowerPoint PPT Presentation

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Technology Guide 1

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Fourth generation: very large-scale integrated (VLSI) circuits or ultra large ... for purchasing the computer hardware for a department store such as Macy's? ... – PowerPoint PPT presentation

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Title: Technology Guide 1


1
Technology Guide 1
  • Hardware

2
Agenda
  • Computer system
  • Computer types
  • Devices
  • Source data automation
  • Selection Criteria

3
Computer System
  • Codes
  • Memory size
  • Speed
  • Input
  • Output
  • CPU
  • Primary storage
  • Secondary storage
  • Communication device

4
Codes
  • ASCII
  • EBCDIC

5
Memory Size
  • Bit (binary digit), byte
  • Kilobyte
  • Megabyte
  • Gigabyte
  • Terabyte

6
Speed
  • Millisecond
  • Microsecond
  • Nanosecond
  • Picosecond
  • Megahertz (MHz)

7
Agenda
  • Computer system
  • Computer types
  • Devices
  • Source data automation

8
Computer Types - Generations
  • First generation vacuum tubes
  • Second generation transistors
  • Third generation integrated circuits
  • Fourth generation very large-scale integrated
    (VLSI) circuits or ultra large-scale integration
    (ULSI)
  • Fifth generation massively parallel processing
  • DNA computers
  • Optical computers

9
Computer Types - Size
  • Supercomputers
  • Mainframes
  • Minicomputers
  • Workstations
  • Microcomputers
  • Desktop personal computers
  • Laptop computers/notebooks
  • Palmtop computers

10
Computer Types - Size
  • Personal digital assistant
  • Smart cards
  • Network computers (NCs)
  • Windows-based terminals (WBTs)

11
Agenda
  • Computer system
  • Computer types
  • Devices
  • Source data automation
  • Selection Criteria

12
Devices - CPU
  • Microprocessor
  • Control unit
  • Machine cycle (MIPS) instruction time and
    execution time
  • Clock speed microcode (Megahertz MHz)
  • Arithmetic-logic unit
  • Primary storage
  • Random-access memory (RAM)
  • Block
  • Cache memory
  • Dynamic random access memories (DRAMs)
  • Read-only memory (ROM)

13
Devices - Buses
  • Data bus
  • Address bus
  • Control bus
  • Word length width of the buses

14
Devices - Input
  • Keyboard
  • Mouse
  • Touch Screen
  • Light pen
  • Joystick
  • Scanners
  • Voice
  • Automated teller machines

15
Devices - Output
  • Monitors
  • Printers
  • Impact printers
  • Nonimpact printers
  • Plotters
  • Voice

16
Devices Secondary Storage
  • Magnetic tapes
  • Magnetic disks
  • Redundancy Array of Inexpensive Disks (RAID)
  • Magnetic diskette
  • Optical storage devices
  • Rewritable optical disks
  • Compact disk
  • Read-only memory (CD-ROM) disks
  • CD-writable (CD-W)
  • CD-Rewritable (CD_RW)
  • Digital video disk (DVD)

17
Agenda
  • Computer system
  • Computer types
  • Devices
  • Source data automation
  • Selection Criteria

18
Source Data Automation
  • Point of sale terminals
  • Bar code scanner
  • Optical character reader
  • Handwriting recognizers
  • Voice recognizers
  • Magnetic ink character readers
  • Digital computer cameras

19
Agenda
  • Computer system
  • Computer types
  • Devices
  • Source data automation
  • Selection Criteria

20
Selection Criteria
  • Cost
  • Speed
  • Usage
  • Compatibility
  • Reliability
  • Feature
  • Future growth
  • Vendor support

21
Points to Remember
  • Computer system
  • Computer types
  • Devices
  • Source data automation
  • Selection Criteria

22
Discussion Questions
  • What is the usage of the following different type
    of computer?
  • Supercomputers
  • Mainframes
  • Minicomputers
  • Workstations
  • Microcomputers
  • Desktop personal computers
  • Laptop computers/notebooks
  • Palmtop computers

23
Discussion Questions
  • What are the important criteria for purchasing
    the computer hardware for a department store such
    as Macys?
  • What are the important criteria for purchasing
    the computer hardware for a elementary school?

24
Assignment
  • Review technology guide 1
  • Read technology guide 2, 3, 4
  • Form group and prepare group list
  • Group assignment
  • Research paper
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