computer fundamentals 1
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BASIC BASIC COMPUTER COMPUTER CONCEPTSCONCEPTS
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COMPUTERCOMPUTERCOMPUTERCOMPUTER An electronic system that can be
programmed to accept, store and manipulate/process data to come out with meaningful output referred to as information
It carries out its task/s through a set of instructions called a computer program.
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Processing of Repetitive, High Volume Applications
Self-Operation
Decision Making
Capabilities of Capabilities of ComputerComputer
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Failure to derive meaning from objects
Inability to generate information on its own
Failure to correct wrong answer
Limitations of ComputerLimitations of Computer
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NOTEBOOK/LAPTOP
DESKTOP/ PC MINICOMPUTER MAINFRAME NETWORK
Classification by SizeClassification by Size
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PEOPLEWARE Managers System
Analyst/Designer Programmers Operators/Technicians Users SOFTWARE System Software Application Software HARDWARE
Components of Computer Components of Computer SystemSystem
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HARDWAREHARDWARE
This refers to the physical equipment that make up a computer system
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SYSTEM UNIT Microprocessor Memory Read-Only Memory(ROM) Random Access Memory (RAM) INPUT DEVICES STORAGE DEVICES OUTPUT DEVICES
HARDWARE HARDWARE COMPONENTSCOMPONENTS
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SYSTEM UNITSYSTEM UNIT
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MOTHERBOARDMOTHERBOARD
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This is the “BRAIN” of a Computer System
It is the device that fetches, decodes and executes instructions
Transfers data between the memory and other peripheral devices through data bus
For Personal/ Micro Computers, this is referred to as the Micro Chip
Central Processing UnitCentral Processing Unit
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MEMORY
MEMORY
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INPUTINPUTInput device is a unit that is used to get data from the user into the central processing unit.
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INPUTINPUT
Keyboard and Keyboard and MouseMouse
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Card ReaderCard Reader Barcode ReaderBarcode Reader
INPUTINPUT
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Data instructions enter main storage and are held until needed to be worked on.
It can be an auxiliary or backing storage.
STORAGESTORAGE
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DisketteDiskette
STORAGESTORAGE
Magnetic TapeMagnetic Tape
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Universal Serial Bus Universal Serial Bus SticksSticks
CDs/DVDsCDs/DVDs
STORAGESTORAGE
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Hard DiskHard Disk
STORAGESTORAGE
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Results are taken from main storage and fed to an output device.
Shows people the processed data-information in a ready-to-use form.
OUTPUTOUTPUT
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OUTPUTOUTPUT
MONITORMONITOR
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PrinterPrinter
OUTPUTOUTPUT
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Set of programs, procedures, routines and documents associated with the operation of a computer system.
Software is the name given to the program that causes a computer to carry out particular operations
SOFTWARESOFTWARE
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Programming Languages - medium used by humans to communicate instructions to a computer.
Systems Software - collection of programs which contribute to the control and performance of the computer
Application Software - programs designed to perform specific jobs such as spreadsheets, wordprocessors, graphic softwares system
Types of SoftwareTypes of Software
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The most important component of computer system – people use the power of the computer for some purpose.
PEOPLEWAREPEOPLEWARE
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Recognize? Recognize? Input, Processing, Output, or Input, Processing, Output, or
StorageStorage
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Recognize? Recognize? Input, Processing, Output, or Input, Processing, Output, or
StorageStorage
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Recognize? Recognize? Input, Processing, Output, or Input, Processing, Output, or
StorageStorage
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Recognize? Recognize? Input, Processing, Output, or Input, Processing, Output, or
StorageStorage
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Recognize? Recognize? Input, Processing, Output, or Input, Processing, Output, or
StorageStorage
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Recognize? Recognize? Input, Processing, Output, or Input, Processing, Output, or
StorageStorage
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Recognize? Recognize? Input, Processing, Input, Processing, Output, or StorageOutput, or Storage
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Recognize? Recognize? Input, Processing, Output, or Input, Processing, Output, or
StorageStorage
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Recognize? Recognize? Input, Processing, Output, or Input, Processing, Output, or
StorageStorage
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Recognize? Recognize? Input, Processing, Output, or Input, Processing, Output, or
StorageStorage
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Recognize? Recognize? Input, Processing, Output, or Input, Processing, Output, or
StorageStorage
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Recognize? Recognize? Input, Processing, Output, or Input, Processing, Output, or
StorageStorage