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MOTHERBOARD.

MOTHERBOARD.

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Motherboard Motherboard Presentation Transcript

  • MOTHERBOARD The Main Printed Circuit Board Inside The PC That Contains and Controls The Components That Are Responsible For Processing Data.
  • WHAT IS MOTHERBOARD? The most important part of a PC is the motherboard. It holds: the processor chip memory chips chips that handle input/output (I/O) the expansion slots for connecting peripherals
  • MOTHERBOARD HOLDS The Processor Memory Expansion Slots Connects Directly or Indirectly to Every Part of The PC
  • MOTHERBOARD IS MADE UP OF A Chipset (known as the “glue logic”) Some Code in ROM Various Interconnections or Buses
  • MOTHERBOARD DETERMINES CPU type and speed Chipset Secondary cache type Types of slots Number of slots Type of memory Number of memory sockets and maximum memory Type of case ROM Plug & Play compatibility Type of keyboard
  • A CHIP A chip (microchip) is an integrated circuit - a thin slice of silicon crystal packed with microscopic circuit elements e.g. wires, transistors, capacitors, resistors
  • MOVING DATAA data bus (a data path): connects the parts of the motherboard. RAM EXPANSION CARDS
  • RAM Random Access Memory (RAM). RAM is used to hold programs while they are being executed, and data while it is be ing processed. RAM is volatile, meaning that information written to RAM will disappear when the co mputer is turned off.
  • RAM RAM contents can be accessed in any (i.e. random) or der.
  • VITURAL MEMORY Virtual memory uses part of the hard disk to simulate more memory (RAM) than actually exists. It allows a computer to run more programs at the same time. Virtual memory is slower than RAM.
  • ROM Read-Only Memory can be read but not changed. It is non-volatile storage: it remembers its contents even when th e power is turned off. ROM chips are used to store the instructions a computer needs during start-up, called firmware. Some kinds of ROM are PROM, EPROM, EEPROM, and CD-ROM.
  • CMOS A computer needs a semi-permanent way of keeping some start-up data e.g. the current time, the no. of hard disks the data may need to be updated/changed CMOS memory requires (very little) power to retain its contents. supplied by a battery on the motherboard BATTERY
  • THE CPU The Central Processing Unit (CPU) is the chip on the motherboard that acts as the "computer's brain" it does calculations, and coordinates the other motherboard components CPU examples: the Pentium, the PowerPC chip The CPU is also known as the processor or microprocessor.
  • SOME PROCESSOR(CPU) POWER PC CHIP CHIP FAN PENTIUM CHIP
  • Most expansion cards contain a port. Data originates in RAM A connector cable plugs into the port, and leads to a peripheral. The expansion bus transports data through the motherboard.
  • Common expansion cards: graphics card (for connecting to a monitor) network card (for transmitting data over a network) sound card (for connecting to a microphone and speakers) Most PCs offer 4-8 expansion slots.
  • EXPANSION SLOT TYPES There are several different types of expansion slot: ISA: older technology, for modems and slow devices PCI: for graphics, sound, video, modem or network cards AGP: for graphics cards
  • CONNECTOR CABELS
  • BOOTING A COMPUTER Booting is the sequence of computer operations from power-up until the system is ready for use this includes hardware tes ting, and loading the OS. The computer checks the CMOS memory. The computer loads configuration settings from Config.sys or the Windows Registry.