tailieunhanh - Lecter Java: Program design - Chapter 1: Introduction

In this chapter, we introduce basic computing and network terminology and the concepts behind object-oriented design. We also introduce Java, an object-oriented programming language that has played a fundamental role in the growth of the Internet. | Introduction Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Let’s begin Goal Teach you how to program effectively Skills and information to be acquired Mental model of computer and network behavior Problem solving Object-oriented design Java Computer Organization Computer advertisement specification Intel® Pentium 4 Processor at with 512K cache 512MB DDR SDRAM 200GB ATA-100 Hard Drive (7200 RPM, ms seek time) 17” LCD Monitor 64MB NVIDIA GeForce4 MX Graphics Card® 16x Max DVD-ROM Drive 48x/24x/48x CD-RW Drive 56K PCI Telephony Modem Windows XP Home Edition SP2 ® 10/100 Fast Ethernet Network Card Computer Organization Most computers have four major parts—a central processing unit, memory, input devices, and output devices. The central processing unit (CPU) is the brain of the computer. It is where computations are performed and decisions are made. Memory is where the data and software are kept while being processed by the CPU. It | Introduction Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Let’s begin Goal Teach you how to program effectively Skills and information to be acquired Mental model of computer and network behavior Problem solving Object-oriented design Java Computer Organization Computer advertisement specification Intel® Pentium 4 Processor at with 512K cache 512MB DDR SDRAM 200GB ATA-100 Hard Drive (7200 RPM, ms seek time) 17” LCD Monitor 64MB NVIDIA GeForce4 MX Graphics Card® 16x Max DVD-ROM Drive 48x/24x/48x CD-RW Drive 56K PCI Telephony Modem Windows XP Home Edition SP2 ® 10/100 Fast Ethernet Network Card Computer Organization Most computers have four major parts—a central processing unit, memory, input devices, and output devices. The central processing unit (CPU) is the brain of the computer. It is where computations are performed and decisions are made. Memory is where the data and software are kept while being processed by the CPU. It is essentially a workspace and scratch pad for the CPU. The CPU both fetches information from and temporarily stores information in the memory. More memory typically means that a computer can run larger software applications and do certain tasks faster. In general, input devices and output devices communicate information between the computer and its users or between itself and other computers. For example, keyboards and mice are input devices that enable a user to issue requests, while monitors and printers are output devices that enable information to be displayed. Intel Pentium 4 microprocessor. Computer Organization Computer advertisement specification Intel® Pentium 4 Processor at with 512K cache 512MB DDR SDRAM 200GB ATA-100 Hard Drive (7200 RPM, ms seek time) 17” LCD Monitor 64MB NVIDIA GeForce4 MX Graphics Card® 16x Max DVD-ROM Drive 48x/24x/48x CD-RW Drive 56K PCI Telephony Modem Windows XP Home Edition SP2 ® 10/100 Fast Ethernet Network Card billion .

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