EXAM QUESTIONS WITH 100%
CORRECT ANSWERS | LATEST
VERSION 2025/2026.
Desktop Motherboard: Components - ANS - Main circuit board of a computer
- CPU
- Memory
- Cords to attach peripherals
CPU - ANS Central Processing Unit
RAM - ANS Random Access Memory
SDRAM - ANS Synchronous Dynamic RAM
ROM - ANS Read Only Memory
BIOS - ANS Basic Input Output System
PCI - ANS Peripheral Component Interconnect
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, BUS - ANS Wires connecting CPU and other components
Von Neumann Architecture - ANS CPU, Memory and Input/Output Devices
CPU - ANS - Brains of the computer
- Decodes instructions and carries out the arithmetic, logic and control operation
- Coordinates flow of instructions and data between other components of the CPU
- Cache Memory, ALU, Control Unit
Arithmetic Logic Unit - ANS Performs arithmetic, logic and manipulation operations
Registers - ANS Stores values, such as operands of currently executing instruction, and
results of operations, and memory addresses to access
Instruction Register - ANS Contains instructions being executed
Program Counter - ANS Contains address of next instruction to be executed
Unites of Speed and Space in Computers - ANS Processing Speed: Computer occurs in
"cycles"
Base Unit: Hz
Data is represented in "bits"
Main Memory: RAM - ANS a collection of temporary storage locations, each with a unique
physical address, used to store instructions and data for currently running programs, contents
are erased once powered off - VOLATILE
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