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A collaboration by:
Tahina Westbrook
Joseph Stewart
“What is a computer?
*A computer is an electronic device that manipulates information or
data. Once entered, it has the ab...
Step 1
Power Up
Step 2
Start Boot
Program
Step 3
Power-on
Self Test
Step 4
Identify
Peripheral
Devices
Step 5
Load
Operati...
Central Processing Unit
The Brain of the computer…
Within the brain, the arithmetic logic unit (ALU), performs simple arit...
The most important parts of a CPU are tucked away inside a case which
allows the computer to display things on the screen....
CPU
Registers
RAM
Cache
All of the items listed are different types of memory storage that can be
located in a computer.
T...
Output ⇨
⇦ Input
⇦ Storage
⇩ Processor
Input devices are whatever is typed,
submitted or even transmitted to a
computer system.
Output devices are the ending
res...
Storage devices are the areas in
which data is left on a permanent
basis when not immediately in use.
Processors are the b...
These devices not only can accept information but
also have the capability of outputting information.
Computer
The
System
Unit
Keyboard
Mouse
Printer
Hard Disk
Drive
Optical
Drive
Other
Storage
Sound
System
Display
System
Ne...
Fetch
Decode
Execute
Increment
Pointer
1. Getting the
instructions
2. Translating the
instructions
3. Performing the
actio...
 A system bus transfers data between components inside or between a
computer. It is circuitry that transports data to and...
Lets review…
1. A Printer is an input, output or combo device?
2. The shoe process contains a sequence of events that
occu...
Introduction to computer components
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Introduction to computer components

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Transcript of "Introduction to computer components"

  1. 1. A collaboration by: Tahina Westbrook Joseph Stewart
  2. 2. “What is a computer? *A computer is an electronic device that manipulates information or data. Once entered, it has the ability to store, retrieve and process this data typically in a binary form of 0’s and 1’s. ⇨
  3. 3. Step 1 Power Up Step 2 Start Boot Program Step 3 Power-on Self Test Step 4 Identify Peripheral Devices Step 5 Load Operating System Step 6 Check Configuration and customization When you push the power button on your computer that was previously powered off, several things begin to happen. First the ROM circuitry receives power then your computer begins a series of steps called the boot process by executing the bootstrap program. The boot process contains a sequence of events that occurs between the time that you turn on your computer and the time it is ready for your commands.
  4. 4. Central Processing Unit The Brain of the computer… Within the brain, the arithmetic logic unit (ALU), performs simple arithmetic and logical operations while the control unit (CU), manages the various components of the computer by reading and interpreting instructions from memory and transforming them into a series of signals to activate other parts of the computer. The number of bits that a CPU can process at one time is called… Word size
  5. 5. The most important parts of a CPU are tucked away inside a case which allows the computer to display things on the screen. • CPU • RAM • Motherboard • Hard Drives • Peripherals • CD/DVD Drives
  6. 6. CPU Registers RAM Cache All of the items listed are different types of memory storage that can be located in a computer. The relationship between them all are quite simple. If a CPU calls for a new instruction or data and the cache memory is full, the system overwrites cache memory by the amount needed to store the new instructions. If the information cannot be located in cache memory, the computer searches for them in RAM. If the information cannot be located in RAM, the computer searches the hard drive.
  7. 7. Output ⇨ ⇦ Input ⇦ Storage ⇩ Processor
  8. 8. Input devices are whatever is typed, submitted or even transmitted to a computer system. Output devices are the ending results produced by a computer. Mouse Microphones Scanners Keyboards Computer Monitors Speakers Printers Headphones
  9. 9. Storage devices are the areas in which data is left on a permanent basis when not immediately in use. Processors are the brain of the computer where the thinking is executed. Its primary function is to process data at extremely fast rates. DVDs Floppy Disks Hard Drives Cassettes AMD Processor ARM Processor Neotion Processor Intel Processor
  10. 10. These devices not only can accept information but also have the capability of outputting information.
  11. 11. Computer The System Unit Keyboard Mouse Printer Hard Disk Drive Optical Drive Other Storage Sound System Display System Network & Internet Access
  12. 12. Fetch Decode Execute Increment Pointer 1. Getting the instructions 2. Translating the instructions 3. Performing the action specified by the instructions 4. Going to the next instruction An instruction set is a collection of pre-programmed activities such as addition, subtraction, counting, etc. with each corresponding to a sequence of 0’s and 1’s.
  13. 13.  A system bus transfers data between components inside or between a computer. It is circuitry that transports data to and from the microprocessor. Types of Busses Data Bus: These buses carry data from one unit to the other in both directions. Address Bus: These buses carry addresses given by the CPU from one unit to the other unit. Control Bus: These buses carry control signal from the ALU to memory and from the memory to the ALU.
  14. 14. Lets review… 1. A Printer is an input, output or combo device? 2. The shoe process contains a sequence of events that occurs between the time that you turn on your computer and the time it is ready for your commands. True or False? 3. Which arrangement is correct for an instruction set to be executed. a) fetch, execute, decode, increment pointer b) execute, decode, fetch, increment pointer c) fetch, decode, execute, increment pointer 4. What is the brain of a computer called? Answer key: • output • false • fetch, decode, execute, increment pointer • CPU (Central Processing Unit)
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