MIS001 A1 Computer Hardware Windows ’98 and Internet Explorer Chapter 1 Components of Your Computer

MIS001 A2 Contact me Instructor Xiaobing Zhao Office BUS-2121 Telephone Office hour Fri. 3:00-5:00 Web site

MIS001 A3 Required Text Chanaka Ekanayake Computer Hardware Window’s 98 and Internet Explorer ISBN X

MIS001 A4 Course Objective The purpose of this course is to introduce the fundamentals of using microcomputer hardware and software, focusing on the most widely used hardware and operating system in the world: IBM PC’s and Windows 98.

MIS001 A5 Grading This course is graded on a Credit (CR) or No Credit (NC) basis. No letter grades will be assigned. To receive Credit (CR) for this course, you must earn a minimum of 70 out of a possible 105 points. There will be 100 points possible on the final exam and 5 points possible for the course assignment.

MIS001 A6 Class Structure Lecture Tah :00 Lab Exercise Tah :1510:3011:45 Lecture Tah :00 Lab Exercise Tah :1510:3011:45

MIS001 A7 What is a computer? It is an electronic device that performs arithmetic and logic operations according to certain instructions InputOutput DataInformation

MIS001 A8 Types of Computers Mainframes Minicomputers Microcomputers

MIS001 A9 Mainframes Large size Large capacity in tera bytes (1 tera byte = 1000 GB) High speed in MIPS (Millions of Instructions Per Second) Cost a lot

MIS001 A10 Minicomputers Medium size Medium capacity Medium speed Cheaper than mainframes

MIS001 A11 Microcomputers Small size Small capacity Slower speed Cheap PC’s and laptops are Microcomputers

MIS001 A12 Components of a Computer Input Devices Output Devices Processing Unit Auxiliary Storage Devices

MIS001 A13 Input Devices Keyboard Mouse Left click to select an item Right Click to show the shortcut menu Double click to open a file or run a program Scanner Bar code readers

MIS001 A14 Output Devices Monitors CRT (Cathode Ray Tube) LCD (Liquid Crystal Display) Printers DeskJet LaserJet

MIS001 A15 Monitors Image consists of small dots or pixels More pixels means clearer image Examples (800x600, 1280x1024)

MIS001 A16 Processing Unit Brain of computer Intel family of processors: 8080, 8086, 8088, 80286, 80386, 80486, Pentium, Pentium II, Pentium III, Pentium IV MMX - additions to the CPU programming that allow it to process multimedia tasks better and faster (such as graphics and sound)

MIS001 A17 Processing Unit CPU clock controls how fast CPU performs calculations It is measured in MHZ (Million cycles per second) Examples: 66 MHZ 233 MHZ | 800 MHZ

MIS001 A18 Processing Unit Arithmetic and Logic Unit (ALU) Control Unit (CU) Primary Storage Unit

MIS001 A19 Memory Main memory RAM Secondary memory Hard disc Floppy disc ROM

MIS001 A20 RAM RAM (Random Access Memory) Contents of RAM will be lost once power is turned off (volatile memory) Allows reading and writing Computer’s primary storage of data to be processed

MIS001 A21 ROM ROM (Read Only Memory) Allows reading only It does not lose the information stored when power is turned off PROM, EPROM, EEPROM

MIS001 A22 Auxiliary Storage Memory Hard drives Floppy drives CD’s Zip drives CD-R, CD-RW

MIS001 A23 Hard Drive Internal or External Size in MB or GB Lower the access time, the faster the hard drive reads data (example 9ms)

MIS001 A24 Floppy Drive Two types 5.25” (size) 360 KB (capacity) 3.5” (size) 1.44 MB (capacity)

MIS001 A25 Floppy Drive Write Protection - Read only 5.25” - put a sticker on upper right notch 3.25” - push bottom right notch down Advantages of floppy drives Inexpensive Portable Disadvantages of floppy drives Slow access time Low capacity

MIS001 A26 Zip Drive The ZIP drive uses special high capacity disks (Zip disks) that can store from 100Mb to 1 GB of information. Operates about as fast as most standard hard drives. Extremely convenient for transferring or storing substantially large amounts of data or backup operations

MIS001 A27 CD ROM Drive Speeds: 4X, 6X, 8X, 10X, 16X, 20X, 24X Now drives both read and write CD-ROM can store up to 650 MB

MIS001 A28 Modem Device that allows transfer of data over phone lines (Internet access, faxing, etc.). Speed of modem measured in bits per second or bps (14.4 Kbps, 28.8 K bps, 56 kbps). 56K Modems are now popular

MIS001 A29 Computer Software System Software Windows 98; Windows 2000; Windows NT UNIX, LINUX Application Software MS Access; MS Word; MS PPT; MS Excel WordPerfect 8

MIS001 A30 Communication Networks

MIS001 A31 Network Topologies Star Bus Ring Net

MIS001 A32 Communication Networks Local Area Network (LAN) Share equipments, such as printer, scanner Network Interface Card (NIC) Intranet Wide Area Network (WAN) Internet Extranet Two or more intranets Partnership

MIS001 A33 Internet and World Wide Web Internet Several wide area network connected together: HTTP: Hyper Text Transfer Protocol Protocol: works as a medium URL address HTML documents

MIS001 A34 This Week No assignment