DiscoveringComputers 2012Your Interactive Guideto the Digital WorldEdited by : Asma AlOsaimi
The System Unit – MemoryThe inside of the system unit on a desktop personalcomputer includes:Drive bay(s)Power supplySound cardVideo cardProcessorMemoryPage 211Figure 4-2Discovering Computers Fundamentals, 2012 EditionChapter 42
MemoryWhat is memory? Electronic components that storeinstructions, data, and resultsConsists of one ormore chips onmotherboard orother circuit boardEach byte storedin unique locationcalled an address,similar to seatsin a concert hallDiscovering Computers Fundamentals,2012 Edition Chapter 4Next3
Memory sizesHow is memory measured? By number of bytes available for ationKB or KMBGBTBApproximate Size1 thousand bytes1 million bytes1 billion bytes1 trillion bytesDiscovering Computers Fundamentals,2012 Edition Chapter 4Next4
Memory TypesThe system unit contains two types of memory:Volatile memoryNonvolatilememoryLoses its contents when poweris turned offDoes not lose contents whenpower is removedTemporary memoryPermanent memoryExample includes RAMExamples include ROM, flashmemory, and CMOSPages 164 - 165Discovering Computers Fundamentals, 2012 EditionChapter 45
Memory - RAMWhat is random access memory (RAM)?Memory chips that can beread from and writtento by processorAlso calledmain memoryThe contentmy changed.Saving is a process of copyingItems from RAM to a storagedevice such as a hard disk.Discovering Computers Fundamentals,2012 Edition Chapter 4Next6
Memory – Types of RAMThree basic types of RAM chips exist:Dynamic RAM(DRAM)Static RAM(SRAM)MagnetoresistiveRAM (MRAM)Click to view Web Link,click Chapter 4, Click WebLink from left navigation,then click RAMbelow Chapter 4Page 166Discovering Computers Fundamentals, 2012 EditionChapter 47
Memory – Module & slotsdual inline memory moduleWhere does RAM memoryreside? Resides on small circuitboard called memorymoduleMemory slots onmotherboard hold memorymodulesmemory slotmemory chipHow much RAM does a computer require?Discovering Computers Fundamentals,2012 Edition Chapter 4Next8
Memory –cash memoryWhat is cache? Helps speed computer processes by storing frequently used instructions and dataMemory cache L1 cache built into processorL2 cache slower but has larger capacityL2 advanced transfer cache is faster,built directly on processor chipDiscovering Computers Fundamentals,2012 Edition Chapter 4Next9
Memory - ROMWhat is read-only memory (ROM)? The data on most ROM chips cannot be modified. Manufacture of ROM chips often record data, instructions, orinformation on the chip when they manufacture the chip. Computers almost always contain a small amount of read-onlymemory that holds instructions for starting up the computer.Discovering Computers Fundamentals,2012 Edition Chapter 4Next10
Memory – Types of ROMTypes of ROM: PROM (programmable read-only memory): A PROM is a memorychip on which you can store a program. But once the PROM hasbeen used, you cannot wipe it clean and use it to store somethingelse. Like ROMs, PROMs are non-volatile. EPROM (erasable programmable read-only memory): An EPROM isa special type of PROM that can be erased by exposing it toultraviolet light. EEPROM (electrically erasable programmable read-only memory):An EEPROM is a special type of PROM that can be erased byexposing it to an electricalDiscoveringcharge.Computers Fundamentals,2012 Edition Chapter 4Next11
Memory – flash MemoryWhat is flash memory? Nonvolatile memory that can be erased electronically and rewritten Used with PDAs, smart phones, printers, digital cameras, automotivedevices, audio players, digital voice recorders, and pagersStep 3.Step 1.Purchase and download music tracks from aWeb site. With one end of a special cableconnected to the system unit, connect theother end to the USB port in the portablemedia player.flash memory chipsPlug the headphones into the portablemedia player, push a button on theportable media player, and listen tothe music through the headphones.USB portStep 2.Instruct the computer to copy the music tracks tothe flash memory chip in the portable media player.Discovering Computers Fundamentals,2012 Edition Chapter 4MP3 PlayerNext12
Memory – Access TimeWhat is access time? Amount of time it takes processorto read data from memory Measured in nanoseconds (ns),one billionth of a second It’s affects how fast the computer process data. It takes 1/10 of a second to blinkyour eye; a computer can performup to 10 million operations in same amount of time!!TermAbb.SpeedMillisecondmsOne-thousandth of a secondMicrosecondμsOne-millionth of a secondNanosecondnsOne-billion of a secondPicosecondpsOne-trillionthof a secondDiscoveringComputers Fundamentals,2012 Edition Chapter 4Next13
The System Unit – Adapter CardsThe inside of the system unit on a desktop personalcomputer includes:Drive bay(s)Power supplySound cardVideo cardProcessorMemoryPage 211Figure 4-2Discovering Computers Fundamentals, 2012 EditionChapter 414
Expansion Slots and Adapter CardsAn expansion slot is a socket on the motherboard that can hold anadapter cardAn adapter card enhances functions of a component of the system unitand/or provides connections to peripherals Sound card and video cardAdapter CardGraphicsacceleratorPurposeIncreases the speed at which graphics aredisplayedModemConnect other computers through telephone orcable TV lineNetworkConnects other computers and peripheralsSoundClick to view Web Link,Connects speakers or microphoneVideoLink from left navigation,Connects a monitorclick Chapter 4, Click Webthen click Video Cardsbelow Chapter 4Page 169Figure 4-17Discovering Computers Fundamentals, 2012 EditionChapter 415
Expansion Slots and Adapter CardsRemovable flash memory includes: Memory cards, USB flash drives, and PCCards/ExpressCard modulesPages 169 - 170Figure 4-19Discovering Computers Fundamentals, 2012 EditionChapter 416
The System Unit – Bays & power supplyThe inside of the system unit on a desktop personalcomputer includes:Drive bay(s)Power supplySound cardVideo cardProcessorMemoryPage 211Figure 4-2Discovering Computers Fundamentals, 2012 EditionChapter 417
BaysWhat is a bay? Opening inside systemunit used to installadditional equipmentDrive bays typicallyhold disk drivesDiscovering Computers Fundamentals,2012 Edition Chapter 4Next18
Power SupplyWhat is a power supply? [Supply Conversion]ConvertsAC PowerintoDC PowerExternal peripheralsmight use an ACadapter, which is anexternal power supplyDiscovering Computers Fundamentals,2012 Edition Chapter 4Next19
PORTS & CONNECTORSDiscovering Computers Fundamentals,2012 Edition Chapter 420
Ports and ConnectorsWhat are ports and connectors? Port connects external devices to system unitConnector joins cable to peripheralDiscovering Computers Fundamentals,2012 Edition Chapter 4Next21
Ports and ConnectorsWhat is a serial port? Transmits one bit of data at a timeConnects slow-speed devices, such as amouse, keyboard, or modemDiscovering Computers Fundamentals,2012 Edition Chapter 4Next22
Ports and ConnectorsWhat is a parallel port? Connects devices that cantransfer more than one bit ata time, such as a printerDiscovering Computers Fundamentals,2012 Edition Chapter 4Next23
Ports and ConnectorsWhat are USB ports?USB (universal serial bus) port can connectup to 127 different peripherals togetherwith a single connectorPCs typically havesix to eight USB portson front or back ofthe system unit127 2 7 - 1Single USB port canbe used to attachmultiple peripheralsusing a USB hubThe latest version ofUSB is calledUSB 3.0Discovering Computers Fundamentals,2012 Edition Chapter 4Next24
USB connectors and portsDiscovering Computers Fundamentals,2012 Edition Chapter 425
Ports and ConnectorsWhat are FireWire ports? Connects multiple types of devices that requirefaster data transmission speedsAllows you to connect up to 63 devices together63 2 6 - 1Discovering Computers Fundamentals,2012 Edition Chapter 4Next26
Ports and ConnectorsWhat are special-purpose ports? Allow users to attach specialized peripherals or transmit data to wireless devices MIDI (Musical Instrument Digital Interface) porteSATA (External Serial Advanced TechnologyAttachment) portSCSI (Small Computer System Interface) portIrDA (Infrared Data Association) portBluetooth portDiscovering Computers Fundamentals,2012 Edition Chapter 4Next27
Discovering Computers Fundamentals,2012 Edition Chapter 428
BusesWhat is a bus? Channel that allows devices inside andattached to the computer tocommunicate with each otherParallel lines (wires or PCB) System bus connects processorand main memoryBus width determines numberof bits transmitted at one timeDiscovering Computers Fundamentals,2012 Edition Chapter 4Next29
It’s affects how fast the computer process data. It takes 1/10 of a second to blink your eye; a computer can perform up to 10 million operations in same amount of time!! Discovering Computers Fundamentals, 13 2012 Edition Chapter 4 Term Abb. Speed Millisecond ms One-thousa
Discovering Computers 2014 Chapter 2 1 DISCOVERING COMPUTERS: TECHNOLOGY IN A WORLD OF COMPUTERS, MOBILE DEVICES, AND THE INTERNET CHAPTER TWO: THE INTERNET END OF CHAPTER SOLUTIONS STUDY GUIDE This study guide identifies material you should know for the Chapter 2 exam. You may want to write the answers in a notebook, enter them on your digital device, record them into a
Correlation of Discovering Algebra, 2nd Edition, Discovering Geometry, 4th Edition, and Discovering Advanced Algebra, . importance of checking whether an answer to a real-world . students gain more experience Discovering Geometry Discovering Advanced Algebra . Correlation of Discovering Mathematics Key Curriculum Press June 2010 .
Discovering Computers Fundamentals, 2010 Edition Chapter 6 Page 255 31. Optical Discs Discovering Computers Fundamentals, 2010 Edition Chapter 6 Page 255 32 Figure 6-23. Optical Discs A DVD-ROM is a high-capacity optical disc on which users can read but not write or erase
Page 117 Discovering Computers 2014: Chapter 3 19 . Mobile Devices Page 118 20 Figure 3-15 Discovering Computers 2014: Chapter 3 . Mobile Devices A digital camera is a mobile device that allows users to take photos and store the photographed images digitally Page 120 21 Figure 3-16
Discovering Advanced Algebra also completes the fully updated Discovering Mathematics series. All of the features that make Discovering Algebra and Discovering Geometry innovative and exciting are now incorporated into this book as well, to make a coherent and streamlined series. Investigations are at the heart of each book.
BCA-S101T Computer Fundamental & Office Automation 3 0 0 3 UNIT-I Introduction to Computers Introduction, Characteristics of Computers, Block diagram of computer. Types of computers and features, Mini Computers, Micro Computers, Mainframe Computers, Super Computers. Types of Prog
Discovering Computers Fundamentals, 2012 Edition Chapter 4 15 Page 169 Figure 4-17 Click to view Web Link, click Chapter 4, Click Web Link from left navigation, then click Video Cards below Chapter 4 Adapter Card Purpose Graphics accelerator Increases the speed at which graphics are displayed Modem Connect other computers through telephone or
Computers with Microprocessors- 1970 onwards Use of microprocessors in computers increased reliability, precision and reduced size and cost. This led to uses of computers in offices, colleges, personal use and exploration of computer usage in every field. First generation computers These computers were named Eniac, Edvac, and Univac.
Discovering Computers and Microsoft Office 2007 Chapter 1 See Page 1 2 for Detailed Objectives. Objectives Overview Differentiate among types, sizes, and functions of computers in each category Explain how home users, small office/home office users, mobile users, power
2) Discovering Computers Fundamentals: Chapters 1- 5 (Scantron Exam) 3) NOTE: Mid-Term Exam is closed book, no notes. Approved project topics return 10 Oct 27 Discovering Computers Fundamentals: (Ch . 6: Storage) Homework: 1) Learn it Online Practice Test Chapter 6. In class activ
More than 350 million host computers today Backbone first provided by National Science Foundation (NSF) - NSFnet Chapter 2: Communications, Networks, the Internet, and the World Wide Web 21 . . Shelly Cashman Series Discovering Computers A Link to the Future .
Two-Year Calendar 7 Planning Calendars SCampus 2011-12 January 2012 May 2012 September 2012 February 2012 June 2012 October 2012 March 2012 July 2012 November 2012 April 2012 August 2012 December 2012 S M T W T F S
4 MCA 1.1 FUNDAMENTALS OF COMPUTERS Unit – I Computer Basics: Algorithms, A Simple Model of a Computer, Characteristics of Computers, Problem Solving Using Computers. Data Representation: Representation of Characters in Computers, Representation of Integers, Representation of Fractions,
Computer Fundamentals: Block structure of a computer, characteristics of computers,problem solving with computers, generations of computers, and classification of computers on the basis . ―Fundamentals of Computers‖, V. Rajaraman, Second Edition, Prentice Hall of India,New
start using LCC in the procurement of computers and monitors, specifically the following products as defined in the EU GPP Criteria for computers and monitors: - Desktop computers incl. Integrated Desktop Computers and Thin Clients. -Portable computers: Notebooks, Two -InOne Notebook, Tablets, Portable Thin Client and Portable All-In-One Computer.
The different portable computers are: - 1) Laptop 2) Notebooks 3) Palmtop (hand held) 4) Wearable computers M. Guymon Pleasant Grove High School Spring 2003 Laptop: - this computer is similar to a desktop computers but the size is smaller. They are expensive than desktop. The weight of laptop is around 3 to 5 kg. Notebook: - These computers are as
Discovering Computers 2010: Living in a Digital World, Complete Gary B. Shelly Misty E. Vermaat Executive Editor: Kathleen McMahon Senior Product Manager: Reed Curry Associate Product Manager: Jon Farnham Editorial Assistant: Lauren Brody Director of Marketing: Cheryl Costantini Marketing Manager: Tristen Kendall Marketing Coordinator: Julie .
Discovering Computers 2018 Instructor’s Manual Page 1 of 17 2018 Cengage Learning . May not be scanned, copied or duplicated, or posted to a publicly accessible .
Teachers Discovering Computers Integrating Technology and Digital Media in the Classroom 6th Edition Integrating Educational Technology into the Curriculum Chapter 1 . Chapter Objectives Define curriculum-specific learning Explain the difference between computer,
INTRODUCTION 5 562, 579, 582, 585, 591, 592, 610). Population genetics, for example, identiﬁes the conditions—selection pressures, mutation rates, population