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Computer System - Coggle Diagram
Computer System
Computer Hardware
Storage Unit
Secondary Storage
Direct (Random) Access Media
Floppy Disk/ Diskette
Hard Disk
Magnetic Disks
Sequential Access Media
Punched Paper Tape
Magnetic Tapes
Punched Cards
Primary Storage
Read Only Memory (ROM)
Masked ROM
Flash ROM/Flash BIOs/Flash memory
Electrically Erasable Programmable ROM (EEPROM)
Erasable Programmable ROM (EPROM)
Programmable ROM (PROM)/One-Time Programmable Device (OTP)
Random Access Memory (RAM)
Static RAM (SRAM)
Dynamic RAM (DRAM)
The Bus System
External Bus
Address Bus
Data Bus
Internal Bus
Control Bus
The Central Processing Unit (CPU)
The Arithmetic and Logic Unit (ALU)
Registers
Memory Address Register (MAR)
Memory Buffer Register
Accumulator (ACC)
Instruction Register (IR)
Program Counter (PC)
Data Register (DR)
Control Unit
Input/Output Unit
Input Device
Output Unit
Soft Copy Output Devices
Visual Displays/Monitors/Video Display Terminal (VDT)
Flat-Panel Displays
Cathode Ray Tube (CRT)
Hard Copy Output Devices
Microfilm
Printers
Non Impact Printers
Ink Jet Printers
Laser Printers
Impact Printers
Dot Matrix Printer
Drum Printers
Daisy Wheel Printers
Plotters
Computer Software
Application Software
Spread Sheet
Database Management
Word Processing
System Software
Operating System
Multi User Operating System
Real Time Operating System
Single Tasking Operating Systems
Language/Programming Software
Assembly Language
High-Level Language
Machine Language