Succeeding with Technology Chapter 2 Hardware Designed to Meet the Need The Digital Revolution Integrated Circuits and Processing Storage Input, Output, and Expansion Selecting and Purchasing a Computer Please discontinue use of cell phone and turn off ringer

Succeeding with Technology 2.3 Storage Read-only Memory Magnetic Storage Optical Storage CD-ROM DVD CD-RW Solid State Storage Flash memory card USB Key Terms From CH1: Storage is the ability to maintain data within the system temporarily or permanently

Succeeding with Technology System Storage Random Access Memory, RAM, or primary storage:  Volatile memory that stores currently running software: OS and apps, and data in addressed cells.  512 MB Standard, 1 GB recommended  RAM SIMM or DIMM: Single or Dual In-line Memory Modules are inserted in slots in the Motherboard

Succeeding with Technology Memory Hierarchy

Succeeding with Technology Other Types of Memory Cache Memory is fast access storage on the processor Graphics Memory is included on graphics card for faster video display ROM stores the boot process instruction that start the computer and load the OS from hard drive into RAM CMOS memory provides semipermenant storage for system configuration information that may change.

Succeeding with Technology Graphics Card Today’s high-end graphics cards are computers unto themselves that include a Graphics Processing Unit (GPU) and hundreds of MB of graphics memory. PCI Express vs AGP Dedicated, integrated, hybrid

Succeeding with Technology Secondary Storage Storage Methods Sequential Access (tape) Direct Access (disk or solid state) Storage Methods Sequential Access (tape) Direct Access (disk or solid state) 23 Storage Media Type Magnetic storage devices use the magnetic properties of iron oxide particles to store bits and bytes more permanently than RAM. Optical storage media, such as CDs and DVDs store bits using an optical laser to burn pits into the surface of a highly reflective disk surface. Solid State storage devices use flash memory to store bits.flash memory Tape Drive

Succeeding with Technology Mini Memory Card 1 TB HDD Recorder Secondary Storage 23 Tape Drive Storage silo robot 2GB MP3 Player Secondary storage is used to store data more permanently without the need for electricity. DVD-RW

Succeeding with Technology Microdrives from Toshiba Microdrives from Toshiba provide iPods with their ultra high storage capacity.iPods Magnetic Media Hard Disk Drives Magnetic Tape High-capacity Disks (Zip, etc) Floppy Disks (outdated) Microdrives

Succeeding with Technology Optical Media CD, DVD, Blu-laser Disk (BD)

Succeeding with Technology Solid State A flash memory card is a chip that, unlike RAM, is nonvolatile and keeps its memory without the need for electricity. USB Flash Drives use flash memory to provide high capacity storage through the USB port. Universal Serial Bus or USB is a standard that allows a wide variety of devices to connect to a computer through a common port.

Succeeding with Technology

Internet Storage Users are increasingly storing data on Web servers, rather than on PCs through services provided by companies like Yahoo, MSN, Google and others.  Google offers Web-based , Calendar, Photo, Spreadsheet, and Word Processing services that provide the software and substantial online storage for free.Web-based CalendarPhotoSpreadsheetWord Processing

Succeeding with Technology Storage Criteria Choose storage media by the  Cost per MB  Capacity  Portability  Durability  Security  Accessibility as associated with the requirements of the data and usage

Succeeding with Technology RAM CPU Registers cache ROM VRAM Hard Drive Tape Magnetic Storage CD DVD Optical Storage USB network Storage Review

Succeeding with Technology 2.4 Input, Output, and Expansion Input device Output device Touch screen Game controller Display resolution LCD Key Terms Read on your own

Succeeding with Technology 2.5 Selecting and Purchasing a Computer

Succeeding with Technology Strategies for Computer Shopping Choose type: notebook, desktop, tablet, handheld Choose platform  Windows/Mac/Linux  Palm/WindowsMobile Choose Manufacturer Choose Model Select Add-ons  The all-important Warranty

Succeeding with Technology Helpful Links for Computer Shopping Research    Computer Retailers   Direct from Manufacturer      

Succeeding with Technology Chapter 2 Questions? Don’t forget to turn your phone on!!