BASIC COMPUTER FUNDAMENTAL
KNOWLEDGE
What is computer
computer is an advance electronic device this means to calculate any mathematical value or
programmable machine computer can not anything without a program.
The main hardware part of computer system
Processor
Main memory
Secondary memory
Input devices
Output devices
What is processor
A processor, or "microprocessor," is a small chip that resides in computers and other electronic devices. Its basic job is to receive input and provide the appropriate
output .
Main memory (primary memory )
- ROM
- RAM
ROM (Read only memory)
Short for read-only memory, ROM is a storage medium that is used with computers and other electronic devices. As the name indicates, data stored in ROM may only be read. ... Unlike RAM (random access memory), ROM is non-volatile, which means it keeps its contents regardless of whether or not it has power
- Programmable Read only memory (PROM)
- Erasable programmable Read only memory (EPROM)
- Electrical Erasable programmable Read Only memory (EEPROM)
RAM (Random access memory)
Random-access memory (or simply RAM) is the memory or information storage in a computer that is used to store running programs and data for the programs. Data (information) in the RAM can be read and written quickly in any order. Normally,
the random access memory is in the form of computer chips.
- Dynamic RAM(DRAM)
- Synchronous DRAM(SDRAM)
Static RAM(SRAM)
Type of ram
ram is available in two basic types.
- dynamic random access memory (dram)
- static random access memory (SRAM)
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| type of ram |
1.dynamic random access memory
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| DRAM |
in the memory cell, the capacitor either charged or discharged to indicated the on or off. which signal further converted into binary number 0 or 1 to understand.
