COMPUTER HARDWARE TECHNOLOGY GUIDE ONE. TECHNOLOGY GUIDE OUTLINE TG1.1 Introduction TG1.2 Strategic...
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Transcript of COMPUTER HARDWARE TECHNOLOGY GUIDE ONE. TECHNOLOGY GUIDE OUTLINE TG1.1 Introduction TG1.2 Strategic...
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COMPUTER HARDWARE
TECHNOLOGY GUIDE ONE
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TECHNOLOGY GUIDE OUTLINE
TG1.1 IntroductionTG1.2 Strategic Hardware IssuesTG1.3 Innovations in Hardware UtilizationTG1.4 Computer HierarchyTG1.5 Input and Output TechnologiesTG1.6 The Central Processing UnitTG1.7 Computer Memory
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LEARNING OBJECTIVES
• Identify the major hardware components of a computer system.• Discuss the strategic issues that link hardware
design to business strategy.• Discuss the innovations in hardware utilization.• Describe the hierarchy of computers according to
power and their respective roles.
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LEARNING OBJECTIVES (CONTINUED)
• Differentiate the various types of input and output technologies and their uses.• Describe the design and functioning of the central
processing unit.• Discuss the relationships between microprocessor
component designs and performance.
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LEARNING OBJECTIVES (CONTINUED)
• Describe the main types of primary and secondary storage.• Distinguish between primary and secondary
storage along the dimensions of speed, cost, and capacity.• Define enterprise storage, and describe the
various types of enterprise storage.
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HARDWARE CONSISTS OF:
• Central processing unit (CPU) – think of a chef in a kitchen
• Primary storage – think of the counter space in the kitchen
• Secondary storage – think about storage in the cupboard
• Input technologies
• Output technologies
• Communication technologies
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TG1.2 STRATEGIC HARDWARE ISSUES
• How do organizations keep up with the rapid price and performance advancements in hardware?
• How often should an organization upgrade its computers and storage systems?
• Will upgrades increase personal and organizational productivity?
• How can organizations measure such increase?
• How do organizations manage telecommuting?
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TG1.3 INNOVATIONS IN HARDWAREUTILIZATION (NOT SO IMPORTANT)
• Server Farms• Virtualization• Grid computing• Utility computing• Cloud computing• Edge Computing• Autonomic Computing• Nanotechnology
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TG1.4 COMPUTER HIERARCHY
• Supercomputers• Mainframe Computers• Midrange Computers• Workstations• Notebooks and Desktop Computers• Ultra-mobile PCs• Computing devices
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TG1.5 INPUT AND OUTPUT TECHNOLOGIES
Input technologies
Human data-entry
Source-data automation
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OUTPUT TECHNOLOGIES
• Output
• Monitors• Printers• Plotters• Voice
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TG1.6 THE CENTRAL PROCESSING UNIT
Central processing unit (CPU)
Microprocessor
– Control unit
– Arithmetic-logic unit (ALU)
– Registers
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HOW THE CPU WORKS
• Binary form• Machine instruction cycle• Clock speed• Word length• Bus width• Line width
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ADVANCES IN MICROPROCESSOR DESIGN
Moore’s Law Years
Power
1½ 2
3 4
4½ 8
6 16
7½ 32
9 64
10½ 125
12 256
13½ 512
15 1024
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TG1.7 COMPUTER MEMORY
Two basic categories of computer memory:• Primary Storage
• Secondary Storage
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HIERARCHY OF MEMORY CAPACITY
• Kilobyte – 1,000 (thousand)
• Megabyte – 1,000,000 (million)
• Gigabyte – 1,000,000,000 (billion)
• Terabyte – 1,000,000,000,000 (trillion)
• Petabyte – 1,000,000,000,000,000
• Exabyte – 1,000,000,000,000,000,000
• Zettabyte – 1,000,000,000,000,000,000,000
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• What's a Google?
"Googol" is the mathematical term for a 1 followed by 100 zeros. The term was coined by Milton Sirotta, nephew of American mathematician Edward Kasner, and was popularized in the book, "Mathematics and the Imagination" by Kasner and James Newman. Google's play on the term reflects the company's mission to organize the immense amount of information available on the web.
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PRIMARY STORAGE
• Primary storage or main memory
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MAIN TYPES OF PRIMARY STORAGE
• Registers (fastest primary storage)• Random access memory (RAM)• Cache memory• Read-only memory (ROM) (slowest primary
storage)
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SECONDARY STORAGE
Secondary Storage– Magnetic tape (sequential access) slow– Magnetic disks (direct access) faster
About Capacity• Compact Disk, Read-Only Memory (CD-ROM)• Digital Video Disk (DVD)
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FLASH MEMORY DEVICES
Flash memoryFlash memory devicesThumb drive
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ENTERPRISE STORAGE SYSTEMS
Enterprise storage system
• Redundant Arrays of Independent Disks (RAID)• Storage Area Network (SAN)• Network Attached Storage (NAS)