Intro ch 05_a
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The document discusses how computers represent and process data. It explains that computers use the binary number system to represent data as strings of 0s and 1s at the bit level, and that bytes made of 8 bits are used to represent individual characters. It also describes how the CPU processes instructions in cycles, and that memory is used to store open programs and data. Finally, it lists several components that can affect processing speed, such as the processor registers, clock speed, cache memory, and buses used to connect different parts of the computer system.
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Intro Ch 05 A
The document discusses how computers represent and process data. It explains that computers use the binary number system to represent data as strings of 0s and 1s at the bit level, and that bytes made of 8 bits are used to represent individual characters. It also describes how the CPU processes instructions in cycles, with components like the control unit, ALU, and registers. Memory is used to store open programs and data, and can be volatile RAM that requires power or nonvolatile flash memory. Processing speed depends on factors like the CPU clock speed, memory size and speed, number of registers, bus speeds, and cache memory.
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This document discusses how computers represent and process data. It explains that computers use the binary number system to represent data as strings of 0s and 1s at the most basic level. It also describes how data is stored and processed by a computer's central processing unit (CPU) and memory. Key components that affect a computer's processing speed are also outlined, such as the CPU clock speed, memory size, and types of buses used to transfer data.
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The document discusses the key components of a computer system: hardware, software, data, and users. It describes the main hardware components including the processor, memory, motherboard, input devices, output devices, and storage devices. It also discusses the roles of system software, application software, data, and users in making the computer functional. The information processing cycle of input, processing, output, and storage is also summarized.
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The document discusses the central processing unit (CPU) and memory in a computer system. It describes the CPU as having a control unit that oversees operations and an arithmetic logic unit (ALU) that performs calculations. The document defines primary memory (RAM) for temporary storage and secondary storage (hard disks and USB drives) for permanent storage. It also lists several ways to increase processing speed, such as using a faster system clock, wider data buses, larger word sizes, more cache memory, and parallel processing.
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Intro ch 05_a
- 1. McGraw-Hill Technology Education Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
- 2. Chapter 5A Transforming Data Into Information
- 24. Chapter 5A End of Chapter
Editor's Notes
- Teaching Tip Table 5A.1 on page 187 provides the first 17 binary numbers and their decimal equivalent. A fun exercise is to teach the students to count in binary on their fingers.
- Insider information Windows XP, Mac OS X and newer flavors of Linux are fully Unicode compatible.
- Teaching tip Table 5A.4 on page 190 lists the operations handled by the common ALU.
- Insider information More pipelines mean a faster and more efficient CPU. The current fastest CPU on the market, the Apple G5 has 80 pipelines!
- Teaching tip If you are in a computer lab, spend a few minutes exploring your BIOS. Demonstrate what happens when values are adjusted. Walk through a POST check. Unplug a device and generate POST errors. Be sure to reset everything before moving on with the lecture!
- Teaching tip One of the most commonly asked questions is “How do I speed up my computer”. The simplest answer is to add RAM. The Productivity Tip on page 200 provides some guidelines when to add RAM.
- Teaching tip Spend a little time here discussing over clocking. Over clocking causes the computer to run faster than designed. Possibly, you have students that can share stories of over clocking.