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Chun Hoi Lam
Chun Hoi Lam
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Chapter 3 Hardware
Components of a computer system ,[object Object],[object Object],[object Object]
Figure 3.1 Basic hardware components of a computer system
Computer hardware ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Hardware components ,[object Object],[object Object],[object Object],[object Object],[object Object]
Input devices ,[object Object],[object Object],[object Object]
Central processing unit (CPU) ,[object Object],[object Object]
Memory ,[object Object],[object Object],[object Object],[object Object],[object Object]
Storage devices ,[object Object],[object Object],[object Object],[object Object]
Output devices ,[object Object]
Figure 3.2 A personal computer labeled with the typical components
Major categories of computers ,[object Object],[object Object]
Figure 3.3 Different forms of computer system
Mainframe computers ,[object Object],[object Object],[object Object],[object Object]
Legacy systems ,[object Object],[object Object],[object Object],[object Object]
Reasons of retaining mainframe computers ,[object Object],[object Object],[object Object]
Minicomputers and servers ,[object Object],[object Object],[object Object]
Microcomputers ,[object Object],[object Object],[object Object]
Types of microcomputers ,[object Object],[object Object],[object Object],[object Object]
Types of microcomputers ,[object Object],[object Object],[object Object]
Types of microcomputers ,[object Object],[object Object],[object Object],[object Object]
Organiser/PDA ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Organiser/PDA (Continued) ,[object Object]
Connectivity ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Network computer ,[object Object],[object Object],[object Object]
Network computer ,[object Object],[object Object],[object Object],[object Object]
Network computer ,[object Object],[object Object],[object Object]
Network computer ,[object Object],[object Object],[object Object]
Network computer ,[object Object],[object Object]
TOPICS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Input devices ,[object Object],[object Object],[object Object],[object Object],[object Object]
Figure 3.4 Input devices in context
Input devices (Continued) ,[object Object],[object Object],[object Object],[object Object],[object Object]
 
Input devices (Continued) ,[object Object],[object Object],[object Object],[object Object]
Input devices (Continued) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
 
Input devices (Continued) ,[object Object],[object Object],[object Object],[object Object]
Input devices (Continued) ,[object Object],[object Object],[object Object]
Input devices (Continued) ,[object Object],[object Object]
Input devices (Continued) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Input devices (Continued) ,[object Object],[object Object],[object Object],[object Object]
Selecting input devices ,[object Object],[object Object],[object Object],[object Object]
Selecting input devices (Continued) ,[object Object],[object Object],[object Object],[object Object],[object Object]
Selecting input devices (Continued) ,[object Object],[object Object],[object Object],[object Object]
Output devices ,[object Object],[object Object],[object Object],[object Object]
Figure 3.7 Output devices in context
Display devices ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Display devices (Continued) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Display devices (Continued) ,[object Object],[object Object],[object Object],[object Object],[object Object]
Display devices (Continued) ,[object Object],[object Object],[object Object],[object Object]
Plotters ,[object Object],[object Object],[object Object]
Printers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Printers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Printers ,[object Object],[object Object],[object Object]
Factors considered in selecting a printer ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Multi-function devices (MFDs) ,[object Object],[object Object]
Selecting output devices ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Storage devices ,[object Object],[object Object],[object Object]
Figure 3.8 Storage devices in context
Units of data measurement ,[object Object],[object Object],[object Object],[object Object],[object Object]
Secondary storage – floppy disk ,[object Object]
Secondary storage – hard disk drive ,[object Object],[object Object],[object Object]
Figure 3.9 Different views of the platters and sectors on hard disk drives
Secondary storage – flash drives ,[object Object],[object Object]
Secondary storage – CD-ROM ,[object Object],[object Object],[object Object]
Secondary storage – CD-ROM ,[object Object],[object Object],[object Object]
Secondary storage – CD-ROM ,[object Object],[object Object],[object Object],[object Object]
Secondary storage – CD-ROM ,[object Object],[object Object],[object Object],[object Object],[object Object]
Secondary storage – DVD ,[object Object],[object Object],[object Object],[object Object]
Secondary storage – magnetic tape ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Primary storage – memory ,[object Object],[object Object],[object Object]
Random access memory (RAM) ,[object Object],[object Object],[object Object],[object Object],[object Object]
Read-only memory (ROM) ,[object Object],[object Object],[object Object]
Selecting storage devices ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Storage-type summary of selection criteria
Selecting storage devices ,[object Object],[object Object],[object Object],[object Object],[object Object]
Selecting storage devices ,[object Object],[object Object],[object Object],[object Object]
Selecting storage devices ,[object Object],[object Object],[object Object]
Selecting storage devices ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Processors ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
 
Processors ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Table 3.2 Historical improvements in processor capability Date Name Transistors and microns Clock speed in MHz MIPS (millions of instructions per second) 1974 8080 6k ,6 2 0.64 1979 8088 29k, 3 5 0.33 1982 ‘ 286 134k, 1.5 6 1 1985 ‘ 386 275k, 1.5 16 5 1993 Pentium 3.1M, 0.8 60 100 1997 Pentium II 7.5M, 0.35 233 400 1999 Pentium III 9.5M, 0.25 450 1000 2001 Pentium 4 42M, 0.18 1500 1500
Processors ,[object Object],[object Object],[object Object]
Graphics card ,[object Object],[object Object],[object Object]
Graphics card (Continued) ,[object Object],[object Object],[object Object],[object Object]
Graphics card standards
Motherboard ,[object Object],[object Object],[object Object],[object Object]
 
Motherboard (Continued) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Figure 3.13 A typical expansion card for use with a personal computer
Selecting hardware suppliers ,[object Object],[object Object],[object Object],[object Object]
Tenders ,[object Object],[object Object],[object Object],[object Object],[object Object]
Evaluating proposals ,[object Object],[object Object],[object Object],[object Object]
Evaluating proposals (Continued) ,[object Object],[object Object],[object Object],[object Object]
Evaluating proposals (Continued) ,[object Object],[object Object],[object Object],[object Object],[object Object]
Evaluation methods ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Evaluating proposals (Continued)

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Bis Chapter3

  • 2.
  • 3. Figure 3.1 Basic hardware components of a computer system
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  • 10.
  • 11. Figure 3.2 A personal computer labeled with the typical components
  • 12.
  • 13. Figure 3.3 Different forms of computer system
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  • 31.
  • 32. Figure 3.4 Input devices in context
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  • 46.
  • 47. Figure 3.7 Output devices in context
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  • 56.
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  • 58.
  • 59.
  • 60. Figure 3.8 Storage devices in context
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  • 64. Figure 3.9 Different views of the platters and sectors on hard disk drives
  • 65.
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  • 73.
  • 74.
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  • 76. Storage-type summary of selection criteria
  • 77.
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  • 79.
  • 80.
  • 81.
  • 82.  
  • 83.
  • 84. Table 3.2 Historical improvements in processor capability Date Name Transistors and microns Clock speed in MHz MIPS (millions of instructions per second) 1974 8080 6k ,6 2 0.64 1979 8088 29k, 3 5 0.33 1982 ‘ 286 134k, 1.5 6 1 1985 ‘ 386 275k, 1.5 16 5 1993 Pentium 3.1M, 0.8 60 100 1997 Pentium II 7.5M, 0.35 233 400 1999 Pentium III 9.5M, 0.25 450 1000 2001 Pentium 4 42M, 0.18 1500 1500
  • 85.
  • 86.
  • 87.
  • 89.
  • 90.  
  • 91.
  • 92. Figure 3.13 A typical expansion card for use with a personal computer
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  • 98.