cse 101 spring 2000
DESCRIPTION
CSE 101 Spring 2000. Hardware (Bits & Bytes). Understanding the Machine. Data versus Information Data are raw facts Information is the result of transforming/examining raw facts One important function of computers is to transform data into information. The “Basic” Computer. - PowerPoint PPT PresentationTRANSCRIPT
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CSE 101 Spring 2000
Hardware
(Bits & Bytes)
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Understanding the Machine
Data versus Information Data are raw facts Information is the result of
transforming/examining raw facts One important function of computers is to
transform data into information
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The “Basic” Computer
There are 4 basic parts of every computer Input (input device = keyboard, mouse,
microphone, etc.) Processor (CPU = PentiumII, etc.) Memory or Storage (64 MB RAM; 6 GB HD,
etc) Output (output device = screen, printers,
speakers, etc.)
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Harware vs. Software
Hardware refers to the physical components of the computer
Software refers to programs run on the computer
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Measuring Your Data
Bit: The smallest measurement in acomputer. A bit is either a 1 or a 0.
Byte: A group of 8 bits representing acharacter or number
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Measuring Your Data
Binary Numbers
64 32 16 8 4 2 1
000 = 0 100 = 4
001 = 1 101 = 5
010 = 2 110 = 6
011 = 3 111 = 7 etc.
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Measuring Your Data
Binary Letters
64 32 16 8 4 2 1
01000001 = A
01000010 = B
01000011 = C
etc...
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Measuring Your Data
Kilobyte (KB): 1,000 bytes Megabyte (MB): 1 million bytes Gigabyte (GB): 1 billion bytes Terabyte (TB): 1 Trillion bytes
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Types of Computers
Digital Computers Analog Computers Hybrid Computers Special Purpose Computers
firmware embeded
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Types of Computers
Personal Computers (PC) Often times called microcomputers
Minicomputers Mainframes Supercomputer Parallel Computing
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Types of Computers
Desktop Laptop Notebook Subnotebook Handheld PC or Palmtop
Often Called a PDA
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Input Devices
Keyboard Mouse, Trackball, Graphics Tablet, Light
Pen Scanner Digital Cameras Microphone
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Output Devices
Printers InkJet LaserJet Thermal
Plotters Pen InkJet LaserJet
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Output Devices
Monitors CRT (Cathode Ray Tube) LCD (Liquid Crystal Display)
Speakers
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Non-Volatile Memory (Permanent)
Floppy Disk 720 KB - Double Sided Double Density 3.5” 1.44MB - High Density 3.5”
Zip Disks (IOMEGA) 100 MB 250 MB
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Non-Volatile Memory (Permanent)
Hard Drives Vary from very small to 38GB The smallest you can buy on the market today
is about 4GB Manufactures include:
Western Digital, Seagate, Quantum, and many others
IDE vs. SCSI
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Non-Volatile Memory (Permanent)
Optical Disks: Hold 650MB CD- ROM CDR CDRW
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RAM
Random Access Memory 32 Pin 72 Pin DIMM SDRAM Flash Memory
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ROM
Read Only Memory PROM EPROM ROM BIOS Flash BIOS Video RAM (VRAM)
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Processors
Intel AMD CYRIX
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Motherboards
Slots 8 and 16 bit slots (ISA) 32 Bit Slots (PCI) 64 Bit Slots (AGP)
Ports Serial Parallel PS/2 USB
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Video Cards
Manufactures Include: Diamond, Trident, Cirrus Logic, Tseng Labs…
The list goes on and on. The importance of video memory depends
on the application Video Capture Cards (TV Cards)
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Sound Cards
Creative Labs is the main manufacturer, but there are many others
Sound cards have a wide price range and capability range
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Modems
Manufacturers Include: US Robotics, Zoom, Hayes and moany others
There are lots of different types of modems.
We’ll get into them when we cover the Internet.
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Other Devices
Scanners Digital Cameras MIDI
(Musical Instrument Digital Interface) NICs (Network Interface Cards)