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TECHNOLOGY GUIDE ONE. Computer Hardware. TECHNOLOGY GUIDE OUTLINE. TG1.1 Introduction TG1.2 Strategic Hardware Issues TG1.3 Innovations in Hardware Utilization TG1.4 Computer Hierarchy TG1.5 Input and Output Technologies TG1.6 The Central Processing Unit TG1.7 Computer Memory.
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TECHNOLOGY GUIDE ONE Computer Hardware
TECHNOLOGY GUIDE OUTLINE TG1.1 Introduction TG1.2 Strategic Hardware Issues TG1.3 Innovations in Hardware Utilization TG1.4 Computer Hierarchy TG1.5 Input and Output Technologies TG1.6 The Central Processing Unit TG1.7 Computer Memory
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.
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.
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.
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
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?
TG1.3 Innovations in HardwareUtilization (not so important) • Server Farms • Virtualization • Grid computing • Utility computing • Cloud computing • Edge Computing • Autonomic Computing • Nanotechnology
TG1.4 Computer Hierarchy • Supercomputers • Mainframe Computers • Midrange Computers • Workstations • Notebooks and Desktop Computers • Ultra-mobile PCs • Computing devices
TG1.5 Input and Output Technologies Input technologies Human data-entry Source-data automation
Output Technologies • Output • Monitors • Printers • Plotters • Voice
TG1.6 The Central Processing Unit Central processing unit (CPU) Microprocessor • Control unit • Arithmetic-logic unit (ALU) • Registers
How the CPU Works • Binary form • Machine instruction cycle • Clock speed • Word length • Bus width • Line width
Advances in Microprocessor Design Moore’s Law
TG1.7 Computer Memory Two basic categories of computer memory: • Primary Storage • Secondary Storage
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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Primary Storage • Primary storage or main memory
Main Types of Primary Storage • Registers (fastest primary storage) • Random access memory (RAM) • Cache memory • Read-only memory (ROM) (slowest primary storage)
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)
Flash Memory Devices Flash memory Flash memory devices Thumb drive
Enterprise Storage Systems Enterprise storage system • Redundant Arrays of Independent Disks (RAID) • Storage Area Network (SAN) • Network Attached Storage (NAS)