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TECHNOLOGY GUIDE ONE. Computer Hardware. TECHNOLOGY GUIDE OUTLINE. TG1.1 Introduction TG1.2 Strategic Hardware Issues TG1.3 Computer Hierarchy TG1.4 Input and Output Technologies TG1.5 The Central Processing Unit. LEARNING OBJECTIVES.
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TECHNOLOGY GUIDE ONE Computer Hardware
TECHNOLOGY GUIDE OUTLINE TG1.1 Introduction TG1.2 Strategic Hardware Issues TG1.3 Computer Hierarchy TG1.4 Input and Output Technologies TG1.5 The Central Processing Unit
LEARNING OBJECTIVES • Identify the major hardware components of a computer system. • Discuss the strategic issues that link hardware design to business strategy. • Describe the hierarchy of computers according to power and their respective roles. • Differentiate the various types of input and output technologies and their uses.
LEARNING OBJECTIVES (continued) • Describe the design and functioning of the central processing unit. • Discuss the relationships between microprocessor component designs and performance. • Describe the main types of primary and secondary storage.
Hardware consists of: • Central processing unit (CPU) • Primary storage • Secondary storage • 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 should organizations determine the need for new hardware infrastructures? • How do organizations manage employees who can “work from anywhere?”
TG1.3 Computer Hierarchy • Supercomputers • Mainframe Computers • Midrange Computers • Microcomputers
TG1.4 Input and Output Technologies Input technologies Human data-entry Source-data automation
Various Human Input Devices • Trackball • Pointing Stick • Digital Pen • Web Camera • Wii • Bluetooth Laser Virtual Keyboard • The Maltron Keyboard
Multimedia Technology • Multimedia technology • Merges capabilities
TG1.5 The Central Processing Unit Central processing unit (CPU) Microprocessor • Control unit • Arithmetic-logic unit (ALU) • Registers
Computer Memory Two basic categories of computer memory: • Primary Storage • Secondary Storage
Memory Capacity • Bit • Byte
Hierarchy of Memory Capacity • Kilobyte • Megabyte • Gigabyte • Terabyte • Petabyte • Exabyte • Zettabyte
Main Types of Primary Storage • Registers • Random access memory (RAM) • Cache memory • Read-only memory (ROM)
Secondary Storage Secondary Storage • Magnetic tape (sequential access) • Magnetic disks (direct access) • Optical storage devices • Flash Memory devices
Optical Storage Devices Optical storage devices • Compact Disk, Read-Only Memory (CD-ROM) • Digital Video Disk (DVD)
Flash Memory Devices Flash memory Flash memory devices Thumb drive