Basic Computer Fundamentals
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Transcript of Basic Computer Fundamentals
Basic Computer Fundamentals
What Is a Computer? Computer System Components Hardware Types of Memory Input Devices Output Devices Overview of Software Operating System
Topics included…
What Is a Computer?
A computer is a programmable machine with two principal characteristics:
• It responds to a specific set of instructions in a well-defined manner.
It can execute a prerecorded list of instructions (a program).
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Computer System Components
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Hardware
Hardware refers to objects that you can actually touch, like disks, disk drives, display screens, keyboards, printers, boards, and chips.
Hardware Components in Action
Instruction phase◦ Step 1: Fetch instruction◦ Step 2: Decode instruction
Execution phase◦ Step 3: Execute the instruction◦ Step 4: Store the results
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Types of Memory
Random access memory (RAM)◦ EDO RAM◦ SDRAM◦ DRAM
Read-only memory (ROM)◦ PROM◦ EPROM
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Input Devices Personal computer input devices Voice-recognition devices Digital computer cameras Terminals Scanning devices
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Output Devices
Display Monitors Liquid Crystal Displays (LCDs) Printers and Plotters Music Devices
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Overview of Software
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Operating System Perform common computer hardware functions Provide a user interface Provide a degree of hardware independence Manage system memory Manage processing tasks Provide networking capability Control access to system resources Manage files
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ANY QUERIES??
THANK YOU
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