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Objectives Overview

Objectives Overview. See Page 248 for Detailed Objectives. Objectives Overview. See Page 248 for Detailed Objectives. Inside the Case. The case contains and protects the electronics of the computer or mobile device from damage. Page 248 Figure 6-1. Inside the Case. Page 250 Figure 6-2.

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Objectives Overview

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  1. Objectives Overview Discovering Computers 2014: Chapter 6 See Page 248 for Detailed Objectives

  2. Objectives Overview Discovering Computers 2014: Chapter 6 See Page 248 for Detailed Objectives

  3. Inside the Case • The case contains and protects the electronics of the computer or mobile device from damage Discovering Computers 2014: Chapter 6 Page 248 Figure 6-1

  4. Inside the Case Discovering Computers 2014: Chapter 6 Page 250 Figure 6-2

  5. Inside the Case • The motherboardis the main circuit board of the computer • A computer chipcontains integrated circuits Discovering Computers 2014: Chapter 6 Pages 250 - 251 Figure 6-3

  6. Processors • The processor, also called the central processing unit(CPU), interprets and carries out the basic instructions that operate a computer • Contain a control unit and an arithmetic logic unit (ALU) • A multi-core processor is a single chip with two or more separate processor cores Discovering Computers 2014: Chapter 6 Pages 252 - 253

  7. Processors Discovering Computers 2014: Chapter 6 Page 253 Figure 6-4

  8. Processors • The control unitis the component of the processor that directs and coordinates most of the operations in the computer • The arithmetic logic unit(ALU) performs arithmetic, comparison, and other operations Discovering Computers 2014: Chapter 6 Page 253

  9. Processors • For every instruction, a processor repeats a set of four basic operations, which comprise a machine cycle Discovering Computers 2014: Chapter 6 Page 254 Figure 6-5

  10. Processors Discovering Computers 2014: Chapter 6 Page 255

  11. Processors • The leading manufacturers of personal computer processor chips are Intel and AMD Page 255 Discovering Computers 2014: Chapter 6

  12. Processors • A processor chip generates heat that could cause the chip to malfunction or fail • Require additional cooling • Heat sinks • Liquid cooling technology • Cooling mats Discovering Computers 2014: Chapter 6 Pages 256 - 257 Figures 6-6 – 6-7

  13. Cloud Computing • Home and business users choose cloud computing for a variety of reasons Discovering Computers 2014: Chapter 6 Page 257

  14. Data Representation Discovering Computers 2014: Chapter 6 Page 259

  15. Data Representation The circuitry in a computer or mobile device represents the on or the off states electronically by the presence or absence of an electronic charge Eight bits grouped together as a unit are called a byte. A byte represents a single character in the computer or mobile device Pages 259 - 260 Figures 6-8 – 6-9 Discovering Computers 2014: Chapter 6

  16. Data Representation Discovering Computers 2014: Chapter 6 Page 260 Figure 6-10

  17. Memory • Memoryconsists of electronic components that store instructions waiting to be executed by the processor, data needed by those instructions, and the results of processing the data • Stores three basic categories of items: Discovering Computers 2014: Chapter 6 Page 261

  18. Memory • Each location in memory has an address • Memory size commonly is measured in gigabytes (GB) or terabytes (TB) Discovering Computers 2014: Chapter 6 Page 261 Figure 6-11

  19. Memory • The system unit contains two types of memory: Discovering Computers 2014: Chapter 6 Page 262

  20. Memory Discovering Computers 2014: Chapter 6 Page 262 Figure 6-12

  21. Memory • Two common types of RAM chips exist: Discovering Computers 2014: Chapter 6 Page 263 Table 6-1

  22. Memory • RAM chips usually reside on a memory moduleand are inserted into memory slots Discovering Computers 2014: Chapter 6 Page 263 Figure 6-13

  23. Memory • Memory cache speeds the processes of the computer because it stores frequently used instructions and data Discovering Computers 2014: Chapter 6 Page 265 Figure 6-14

  24. Memory Discovering Computers 2014: Chapter 6 Page 265

  25. Memory • Flash memorycan be erased electronically and rewritten • CMOStechnology provides high speeds and consumes little power Discovering Computers 2014: Chapter 6 Pages 266 - 267

  26. Memory • Access timeis the amount of time it takes the processor to read from memory • Measured in nanoseconds Discovering Computers 2014: Chapter 6 Page 267 Table 6-2 and Figure 6-15

  27. Adapters • An adapter cardenhances functions of a component of a desktop or server system unit and/or provides connections to peripherals • Sound card and graphics card • An expansion slotis a socket on a desktop or server motherboard that can hold an adapter card Page 269 Table 6-3 Discovering Computers 2014: Chapter 6

  28. Adapters • With Plug and Play, the computer automatically can recognize peripheral devices as you install them Discovering Computers 2014: Chapter 6 Page 269 Figure 6-16

  29. Adapters • Adapters for mobile computers are in the form of a removable flash memory device • USB adapter • ExpressCard module Discovering Computers 2014: Chapter 6 Page 269 Figures 6-17 – 6-18

  30. Buses • A busallows the various devices both inside and attached to the system unit to communicate with each other • Data bus • Address bus • Word sizeis the number of bits the processor can interpret and execute at a given time Pages 270 - 271 Figure 6-19 Discovering Computers 2014: Chapter 6

  31. Buses • A computer might have these three types of buses: Discovering Computers 2014: Chapter 6 Page 271

  32. Power Supply and Battery • The power supplyor laptop AC adapter converts the wall outlet AC power into DC power Page 271 Figure 6-20 Discovering Computers 2014: Chapter 6

  33. Power Supply and Battery • Mobile computers and devices can run using either a power supply or batteries • Batteries typically are rechargeable lithium-ion batteries Discovering Computers: Chapter 6 Page 272 Figure 6-21

  34. Summary Discovering Computers: Chapter 6 Page 275

  35. Chapter 6 Complete

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