Primary Storage Primary storage is the storage that is directly available to the CPU. It is also known as: Main Memory Main Memory Direct Access Storage Direct Access Storage Immediate Access Storage (IAS) Immediate Access Storage (IAS)

Primary Storage is made up of 2 types of storage RAM and ROM. Primary Storage RAM ROM

What is Random Access Memory This is a collection of memory cells. We can access any cell at any given time, hence the name Random Access Memory (RAM). RAM is considered to be a temporary type of storage as it cannot hold or store data if there is no electric power.

Types of RAM Static RAM (SRAM) Static RAM (SRAM) Dynamic Random Access Memory (DRAM) Dynamic Random Access Memory (DRAM) Synchronous DRAM (SDRAM) Synchronous DRAM (SDRAM)

What is READ ONLY MEMORY (ROM) This is a chip or a group of chips containing instructions for the CPU. Only the CPU has access to this memory type. When we turn on the computer, the CPU gets its first instruction s from the ROM.

Types of ROM Programmable Read only Memory (PROM) Programmable Read only Memory (PROM) Erasable Programmable Read Only Memory (EPROM). Erasable Programmable Read Only Memory (EPROM). Electrically Erasable Programmable Read Only Memory (EEPROM). Electrically Erasable Programmable Read Only Memory (EEPROM).

Questions What is the primary Storage? What is the primary Storage? The acronym ROM stands for? The acronym ROM stands for? The part of the computer that reads, interpret and executes program is known as the ? The part of the computer that reads, interpret and executes program is known as the ? The electrical path or channel along where bits are transferred is the? The electrical path or channel along where bits are transferred is the?