Technology Guide: Understanding Computer Hardware, Study notes of Information Technology

Download Technology Guide: Understanding Computer Hardware and more Study notes Information Technology in PDF only on Docsity! 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 (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) • 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 do organizations manage telecommuting? TG1.5 Input and Output Technologies Input technologies Human data-entry Source-data automation Output Technologies • Output – Monitors – Printers – Plotters – Voice Multimedia Technology • Multimedia technology • Merges capabilities Advances in Microprocessor Design Moore’s Law TG1.7 Computer Memory Two basic categories of computer memory: – Primary Storage – Secondary Storage Memory Capacity • Bit • Byte 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 Optical storage devices – Compact Disk, Read-Only Memory (CD-ROM) – Digital Video Disk (DVD)