6.1 Copyright © 2005 Pearson Education Canada Inc. Management Information Systems, Second Canadian Edition Chapter 6: Hardware and Software HARDWARE AND SOFTWARE

6.2 Copyright © 2005 Pearson Education Canada Inc. Management Information Systems, Second Canadian Edition Chapter 6: Hardware and Software What computer hardware does our organization need?What computer hardware does our organization need? What networking arrangement is best for our organization?What networking arrangement is best for our organization? What software do we need to run our business, and how do we select it?What software do we need to run our business, and how do we select it? How should we acquire and manage the firm’s hardware and software assets?How should we acquire and manage the firm’s hardware and software assets? OBJECTIVES

6.3 Copyright © 2005 Pearson Education Canada Inc. Management Information Systems, Second Canadian Edition Chapter 6: Hardware and Software COMPUTER HARDWARE

6.4 Copyright © 2005 Pearson Education Canada Inc. Management Information Systems, Second Canadian Edition Chapter 6: Hardware and Software COMPUTER HARDWARE

6.5 Copyright © 2005 Pearson Education Canada Inc. Management Information Systems, Second Canadian Edition Chapter 6: Hardware and Software COMPUTER HARDWARE BitBit –Binary digit - Smallest unit of data - either 0 or 1 ByteByte –String of 8 bits - Stores one number or character UnitsUnits –K - 1,000 (really 1,024) –M - 1,000,000 –G - 1,000,000,000 –T - 1,000,000,000,000 What do we use this for?What do we use this for? –56K bps modem –50KB/sec download speed –256MB RAM –30GB hard drive

6.6 Copyright © 2005 Pearson Education Canada Inc. Management Information Systems, Second Canadian Edition Chapter 6: Hardware and Software RAM –volatile, very fast, internal memory –chip(s) on motherboard –holds programs and data currently executing –e.g. 256MB, 16 GBROM –Chip on motherboard used to control basic operations (eg boot) COMPUTER HARDWARE

6.7 Copyright © 2005 Pearson Education Canada Inc. Management Information Systems, Second Canadian Edition Chapter 6: Hardware and Software Processor –Speed measured in MHz (millions of cycles per second) –e.g. Intel Pentium – 900Mhz –1.6 Ghz? Parallel Processing –Problem broken down into smaller parts –Multiple instructions processed simultaneously with multiple processors –Used for large computing tasks COMPUTER HARDWARE

6.8 Copyright © 2005 Pearson Education Canada Inc. Management Information Systems, Second Canadian Edition Chapter 6: Hardware and Software COMPUTER HARDWARE

6.9 Copyright © 2005 Pearson Education Canada Inc. Management Information Systems, Second Canadian Edition Chapter 6: Hardware and Software COMPUTER HARDWARE

6.10 Copyright © 2005 Pearson Education Canada Inc. Management Information Systems, Second Canadian Edition Chapter 6: Hardware and Software COMPUTER HARDWARE Secondary Storage Technology: Long term, nonvolatile storage outside the CPU Magnetic DiskMagnetic Disk –Floppy disk or diskette (1.4 MB) –hard disk (eg 40 GB) RAIDRAID –Redundant Array of Independent Disks –Multiple copies of data online – why? Magnetic TapeMagnetic Tape –Inexpensive, sequential access only –great for backup

6.11 Copyright © 2005 Pearson Education Canada Inc. Management Information Systems, Second Canadian Edition Chapter 6: Hardware and Software COMPUTER HARDWARE Secondary Storage Technology (continued) USB ‘key’USB ‘key’ –128 MB Optical DisksOptical Disks –Use laser technology –CD-ROM (read only) – 600MB CD-R (recordable) CD-RW (rewriteable) –Digital Video (Versatile) Disks (DVD) – 4GB Storage Area Networking (SAN)Storage Area Networking (SAN) –Multiple storage devices on a high-speed network

6.12 Copyright © 2005 Pearson Education Canada Inc. Management Information Systems, Second Canadian Edition Chapter 6: Hardware and Software COMPUTER HARDWARE

6.13 Copyright © 2005 Pearson Education Canada Inc. Management Information Systems, Second Canadian Edition Chapter 6: Hardware and Software COMPUTER HARDWARE

6.14 Copyright © 2005 Pearson Education Canada Inc. Management Information Systems, Second Canadian Edition Chapter 6: Hardware and Software COMPUTER HARDWARE Input –Keyboard / mouse –OCR (optical character recognition) –MICR (magnetic ink character recognition) –Digital scanners –Audio input –Biometric Sensors –RFID (radio frequency identification) Input and Output Devices Output –Display screens –Printers –Audio output

6.15 Copyright © 2005 Pearson Education Canada Inc. Management Information Systems, Second Canadian Edition Chapter 6: Hardware and Software COMPUTER HARDWARE

6.16 Copyright © 2005 Pearson Education Canada Inc. Management Information Systems, Second Canadian Edition Chapter 6: Hardware and Software COMPUTER HARDWARE Ports: Connections to the Processor ModemModem –for Dial-up network connections –eg - 56K bps Ethernet (NIC)Ethernet (NIC) –for high-speed (broadband) network connections –eg – 10MB per sec Parallel PortParallel Port –older printers Universal Serial Bus (USB) Port(s)Universal Serial Bus (USB) Port(s) –High speed port for digital camera, video, printer etc

6.17 Copyright © 2005 Pearson Education Canada Inc. Management Information Systems, Second Canadian Edition Chapter 6: Hardware and Software Batch Processing Transactions accumulated and stored until processingTransactions accumulated and stored until processing Online Processing Transactions processed as they occurTransactions processed as they occur COMPUTER HARDWARE

6.18 Copyright © 2005 Pearson Education Canada Inc. Management Information Systems, Second Canadian Edition Chapter 6: Hardware and Software COMPUTER HARDWARE Batch and Online Input and Processing

6.19 Copyright © 2005 Pearson Education Canada Inc. Management Information Systems, Second Canadian Edition Chapter 6: Hardware and Software What computer hardware does our organization need?What computer hardware does our organization need? What networking arrangement is best for our organization?What networking arrangement is best for our organization? What software do we need to run our business, and how do we select it?What software do we need to run our business, and how do we select it? How should we acquire and manage the firm’s hardware and software assets?How should we acquire and manage the firm’s hardware and software assets? OBJECTIVES