Comp TIA A Certification Essentials Mercy Vocational High School

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Comp TIA A Certification EssentialsMercy
Vocational High School

• Instructor Mr. Maphorisa
• 2007/2008

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Computer Components Overview

• Identify fundamentals principles of using PCs
• Names, purposes and characteristics
• -FDD
• -CD/DVD
• Display devices e.g. CRT, LCD
• Input devices e.g. mouse, keyboards

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Notebook Computers

• Typical Notebook contains
• CPU, Memory, Hard drive, CD or DVD drive,
• Key board, monitor, Pointing device, Network
  adapter, modem, Peripheral ports, one or more
  slots for expansion cards.

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Hardware, Software and Firmware

• Hardware e.g. monitor, printer, CD/DVD drive ,
  CPU processing chip.Software ea Operating
  system, Word processor, spreadsheet Graphics
  editors
• Firmware software written permanently to the
  computer chip . Communicates between hardware and
  software. Firmware retain information without
  power.

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Contd

• Identify the fundamental principles of using
  laptops and portable devices
• Identify, Name, Purposes and Characteristics of
  laptop specific
• Expansion slots (e.g. PCMCIA I, II, and III, card
  and express bus.)
• Ports (e.g. mini PCI slots)
• Input devices (e.g. stylus /digitizer, function
  (Fn) keys and pointing devices such as touch pad,
  pointing stick/track point)

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Components

• External Devices/Peripherals
• Case
• Monitor
• Keyboard
• Mouse
• Printer
• Scanner
• Digital camera

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Internal Components

• CPU The brains of the computer, central
  processing unit
• CD/DVD drive removable storage mainly for music
  and video DVDs.
• Floppy drive similar to CD/DVD but smaller in
  capacity
• Network adapter connecting computer to network
• Sound and multimedia adapter Device for
  producing high quality sound output.
• Internal modem Device connecting the computer to
  the phone line for internet access connection.

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The integrated circuit from an Intel 8742, an
8-bit microcontroller that includes a CPU running
at 12 MHz, 128 bytes of RAM, 2048 bytes of EPROM,
and I/O in the same chip.
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Internal Component

• CPU the brain of the computer, central
  processing unit
• http//www.kids-online.net/learn/click/details/mic
  ropro.html
• CD/DVD drive Large capacity removable storage
  device, mainly music, video DVDs and data media
• Floppy Drive same as DVD but smaller in capacity
• Network adapter connect the computer to the
  network.
• Sound and multimedia adapter Device for high
  quality producing sound.
• Internal modem phone line connection hence
  internet connection.

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Notebook Computers

• CPU
• Memory
• Hard Drive
• CD/DVD drive
• Keyboard
• Monitor
• Pointing device
• Network adapter
• Modem
• Peripheral ports
• One or more slots for expansion cards

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Hardware, Software and Firmware

• Hardware physical component
• e.g. Monitor , printer, CD/DVD drive, CPU
  processing chip.
• Software A Set of instruction processed by the
  CPU chip to perform different tasks. E.g.
  Operating systems, Word processor, Spreadsheet
  and Graphics editor.
• Firmware Software written on computer chips
  permanently or semi permanently. Firmware chips
  retain information without power .

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Appendix

• HDD Hard Disk Drive
• FDD Floppy Disk Drive
• PCMCIA Personal Computer Memory Card
  International Association
• 3 Types of PCMCIA They are all 85.6 X 54 mm they
  only differ in thickness
• Type1 3.3mm thickused mostly to add ROM or RAM
  memory
• Type 25.5mm thick used mostly for modem and fax
  connections
• Type3 10.5mm-its large for large memory such as
  disk drives
• CRT Cathode Ray Tube
• LCD Liquid crystal display
• BIOS(EEPROM) Basic Input Output System uses
  flash memory (ROM)
• CMOS Complementary Metal Oxide Semiconductor