Prof. Anatoly Sachenko
Computer Hardware
I. LECTURE OVERVIEW
Foundation Concepts: Computer Hardware, reviews trends and developments in microcomputer, midrange, and mainframe computer systems; basic computer system concepts; and the major types of technologies used in peripheral devices for computer input, output, and storage.
Computer Systems – Major types of computer systems are summarized in Figure 13.2. A computer is a system of information processing components that perform input, processing, output, storage, and control functions. Its hardware components include input and output devices, a central processing unit (CPU), and primary and secondary storage devices. The major functions and hardware in a computer system are summarized in Figure
13.9
Microcomputer Systems – Microcomputers are used as personal computers, network computers, personal digital assistants, technical workstations, and information appliances. Like most computer systems today, microcomputers are interconnected in a variety of telecommunications networks. This typically includes local area networks, client/server networks, intranets and extranets, and the Internet.
Other Computer Systems – Midrange computers are increasingly used as powerful network servers, and for many multiuser business data processing and scientific applications. Mainframe computers are larger and more powerful than most midsize computers. They are usually faster, have more memory capacity, and can support more network users and peripheral devices. They are designed to handle the information processing needs of large organizations with high volumes of transaction processing, or with complex computational problems. Supercomputers are a special category of extremely powerful mainframe computer systems designed for massive computational assignments. II. LEARNING OBJECTIVES
Learning Objective
• Identify the major types, trends, and uses of microcomputer, midrange and mainframe computer