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CT 2104

Computer hardware and software By: Patsy-Marie C ampbell. CT 2104. Hardware VS. software. Hardware All the physical parts of a computer system (the things that can see and touch) Examples= motherboard. Software

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CT 2104

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  1. Computer hardware and software By: Patsy-Marie Campbell CT 2104

  2. Hardware VS. software Hardware All the physical parts of a computer system (the things that can see and touch) Examples= motherboard • Software • Software is a collection or programs that help the computer hardware to work properly • Examples= windows xp

  3. Hardware vocabulary Motherboard CPU RAM BIOS chip CMOS Battery CPU fan CPU Heat Sink Adapter Cards -video -sound -network Expansion Slots -PCI -AGP All part of motherboard

  4. More hardware vocab Computer Hard drive CD/DVD drive Power supply Power cables Ribbon cables Ports -series -USB -sound

  5. The Computer Case Types of cases: Tower case Desktop case Need air flow!! -Openings - Fan to circulate air

  6. Power Supply •Controls electricity to the computer •reduces 120 Volts of power to a form that will not harm the electronics. •Rated at 300 Watts

  7. Motherboard •The main circuit board in the computer. •Consider the “spine” •All other parts connect to the mother board

  8. CPU-Central Processing Unit •Located on the motherboard •It is a computer chip that processes all data. •It’s the “brain” of the computer system.

  9. C.P.U.- Slide 2 •When the CPU receives and carries out an instruction, it has completed one cycle –CPU speed = number of cycles in one second –Cycles are measured in: •Gigahertz (GHz) - billions of cycles per second

  10. RAM-Random Access Memory •Located on the motherboard. •Used to store information which the computer is currently using. •It’s a temporary memory; once power is off the info is lost •RAM is measured in GB Each one below is a RAM

  11. CPU Fan / CPU Heat Sink •Computer electronics (especially chips) generate huge amounts of heat. •Fans and heat sinks help cool electronics

  12. BIOS Chip •BIOS = Basic Input / Output System •Located on the motherboard •A type of ROM [Read Only Memory] used by the computer to instruct the system when starting up. •“Steps that tell computer how to start”

  13. CMOS and CMOS Battery CMOS= Complimentary metal oxide semiconductor Located on the motherboard CMOS allows a computer to store info[ex. Time] even when the power is off

  14. Adapter Cards •Allow other devices to connect to Motherboard •Include: –Video Card –Sound Card –Network Card

  15. GPUs High end video cards are available that have their own processors, called GPU GPU= Graphics processing unit

  16. Integrated “video, sound, network” on the motherboard Video , sound, and network often built into the motherboard. this is known as integrated motherboard

  17. Hard disk drive The primary storage device for the computer The hard drive holds the operating system, programs and data files It’s where data goes when saved

  18. Hard Disk (slide 2) •It’s a spinning disk. Data is saved in sectors on the disk. A moving arm reads data from the disk. •Storage capacity measured in GB and TB.

  19. CD / DVD Drive •Device that reads and writes data to a “Compact Disc” or “Digital Video Disc”. •Uses optics / laser to communicate. •Scratches on the disc are nasty •R = Write data once •RW = Re -write data many times

  20. Power Cables / Ribbon Cables Power Cables •Single wires that are usually colored •Carries Power!!! Ribbon Cable •Many wires are joined in parallel (gray or rainbow colors) •Transfers Data!!!

  21. Connection Ports •Any opening that allows external devices to connect to the computer. •Includes: usb, firewire, serial, parallel, s -video, HiDef, VGA, Internet,etc.....

  22. Label the stars Bios chip Adapter card Ribbon cable Heat sink RAM Power cable

  23. Power supply CD/ DVD CPU Hard drive

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