01. Basics of Computer Hardware


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Basics of Computer Hardware. Parts, Devices etc.


Presentation Transcript

Basics Of Computer Hardware:

Basics Of Computer Hardware

Components of a Computer System:

Components of a Computer System Hardware Software Liveware

Computer Hardware :

Computer Hardware System Unit Central Processing Unit (CPU) also called “The Chip”, “Microprocessor” or simply “The Processor” Main Memory (RAM) Storage Devices Input Devices Output Devices

CPU (Central Processing Unit):

CPU (Central Processing Unit) CPU or microprocessor is often described as the brain of a computer CPU is an integrated circuit or “chip” which processes instructions and data. CPU speed or CPU performance is measured by the completed I nstruction Cycles P er S econd (IPS). Currently, CPU speeds range from 600 megahertz (MHz or million cycles per second) to 4 gigahertz (GHz or billion cycles per second).

CPU (Central Processing Unit):

CPU (Central Processing Unit) Processing performance of computers is increased by using multi-core processors , which essentially is plugging two or more individual processors (called cores in this sense) into one integrated circuit . ( Eg : Intel Core i5 , AMD Phenom II X4, …)

RAM (Main Memory):

RAM (Main Memory) RAM or R andom A ccess M emory It is a volatile type of memory Holds instructions for processing data, processed data, and raw data. Ram is measured by: Capacity (in Megabytes or Gigabytes) Frequency (in MHz)

Memory (RAM):

Memory (RAM) Amount of RAM installed will determine. Which software applications will run (efficiently)? How many software applications can be open simultaneously? (multitasking ability) Types of RAM: SRAM (Static RAM) DRAM ( Dynamic RAM)

Storage Devices:

Storage Devices Magnetic storage devices store data by magnetizing particles on a disk or tape. Optical storage devices store data as light and dark spots on the disk surface.

Storage Devices:

Storage Devices Hard Disk Drives Capacity is measured in gigabytes (GB or billions of bytes). Typically permanently installed. Used to store operating system, application software, utilities and data. Magnetic storage device.

Storage Devices:

Storage Devices Other Storage Devices : CD, DVD, BD… External Hard Drives USB Flash Drive (Pen drive or Thumb drive)

Input Devices:

Input Devices Input devices gather and translate data into a form the computer understands . Primary input device: Keyboard - Most common input device; used to type in commands and data. Mouse or Trackball enhances user’s ability to input commands, manipulate text, images. Touchpad or Touchscreen Joystick useful for Gaming

More Input Devices:

More Input Devices Scanners Webcams Microphones

Output Devices:

Output Devices Monitors are the most commonly used output device. Most monitors use a bitmap (Raster) display. Allows user to resize the display. Divides the screen into a matrix of tiny square “dots” called pixels . The more “dots” a screen can display, the higher the resolution of the monitor. For example: CRT(Cathode Ray Tube), LCD (Liquid Crystal Display)…

Output Devices:

Output Devices Other output devices: Speakers Printers Projectors

The End.:

The End. Thank You!

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