The document outlines two major types of memory: long-term and short-term memory, with long-term memory serving to store and manage information and short-term memory linked to working memory for immediate retention. It discusses Read-Only Memory (ROM) as non-volatile storage used primarily for essential instructions in computers and appliances, and details various types of ROM. Additionally, it covers Random Access Memory (RAM) as temporary data storage essential for running programs and describes various storage devices like hard drives and USB flash memory.

1. T Y P E S O F
M E M O RY, R A M ,
R O M A N D
S T O R A G E
B Y : E N G A B D I K A N I G U U S H A A

2. M E M O R Y T Y P E S
• There are two major categories of memory:
• long-term memory
• short-term memory.

3. L O N G T E R M M E M O R Y
• Long-term memory is our brain’s system for storing, managing,
and retrieving information.

4. S H O R T T E R M M E M O R Y
• Closely related to “working” memory, short-term memory
is the very short time that you keep something in mind
before either dismissing it or transferring it to long-term
memory.

5. R O M ( R E A D O N L Y M E M O R Y )
• ROM stands for Read Only Memory. The memory from which we
can only read but cannot write on it.
• This type of memory is non-volatile. The information is stored
permanently in such memories during manufacture.

6. C O N T …
• A ROM stores such instructions that are required to start a computer.
• This operation is referred to as bootstrap.
• ROM chips are not only used in the computer but also in other electronic
items like washing machine and microwave oven.

7. ROM

8. T Y P E S O F R O M S
• MROM (Masked ROM)
• PROM (Programmable Read Only Memory)
• EPROM (Erasable and Programmable Read Only Memory)
• EEPROM (Electrically Erasable and Programmable Read Only
Memory)

9. A D V A N T A G E S O F R O M
 Non-volatile in nature
 Cannot be accidentally changed
 Cheaper than RAMs
 Easy to test

10. R A M ( R A N D O M A C C E S S M E M O R Y )
• RAM (Random Access Memory) primarily serves as the operating
system or CPU for quick access to data that is constantly used to
run a program in a computing device. Simply put, for every
running program on your computer, it requires a certain amount of
data to run them. This data is temporarily stored in the RAM
modules, and processed by the processor of the computer – also
called the CPU (Central Processing Unit)

11. RAM

12. S T O R A G E D E V I C E
• Storage devices are the computer hardware used to remember/store data.
• There are many types of storage devices.
• Hard Disk Drive (HDD)
• Random Access Memory (RAM)
• CD, DVD and Blu-Ray Discs
• DVD-RAM
• ROM
• USB Flash Memory

13. E N D