30 C
Lagos
Monday, February 24, 2020
Advertisements

Uses and Functions of ROM (Read-only Memory)

Featured Posts

What Are Smart Mirrors? Some People Think It Is the Future of Skincare

Lighting plays a significant role in your reflection. Makeup can appear completely different in natural sunlight versus artificial sunlight, often leaving you with uneven...

Top 5 Dog Breeds

Last year, there were about top 100 dog breeds on our data base, all of which received high sales in the dog market. Ranging...

Grasshopper – Google App That Teaches Programming for Free

"There are no mistakes when learning to code. Just try things out to see what works." - Grasshopper. In a bid to make programming...

Think Different

When last did you do something new for the first time?, or challenged the norm?. Well prior to Apple, there was the giant Microsoft which...

Veterinary Jobs & Careers

Have you ever imagined caring for the health of pets, livestock, or animals in zoos or animal parks? Have you pictured yourself helping animals...

A computer is a very important device and besides being the best gadget to play your favorite video games or watching your favorite movies, it is used to store important and confidential data.

Advertisements

There is a possibility that you use your computer every day, but have you ever asked yourself how it works? Well, a computer has various components that store data with the hard drive being the primary storage device that saves data such as music, apps, OS files, videos, etc.

Apart from the hard drive, your computer also has ROM (Read-only memory) and RAM (Random Access Memory) and in this article, we will tell you more about ROM.

What is ROM?

Read-only Memory, abbreviated as ROM is simply a storage medium used with laptops, computers and other electronic devices. The words ‘read only’ on ROM means that any information stored in ROM can only be read or modified by experts with extreme difficulty. This form of memory is usually non-volatile which clearly means that you cannot write on it.

According to tech experts, ROM stores information permanently during manufacture which is required to start a computer in an operation famously known as bootstrap. Interestingly, ROM chips can also be used in other electronic devices such as microwave oven and washing machine.

Characteristics of ROM

  • Data stored in ROM is non-volatile hence not lost when the power supply is disconnected
  • Data stored is unchangeable or may require a special operation to modify

Types of ROMs

  • Masked ROM (MROM) – This is a traditional type of ROM where data and instructions were written when the memory chip was manufactured
  • Programmable Read Only Memory (PROM) – This is a ROM that can successfully be edited by the user though only once. Modification is straightforward and you should buy a blank PROM and load your information using a PROM program
  • Erasable and Programmable Read Only Memory (EPROM) – This is a special type of memory with the ability to retain its content but can be erased when exposed to ultra-violet light for about forty minutes. Basically, the UV light clears its data meaning that you can reprogram the memory. But, if you want to successfully write and erase EPROM, you must have specially designed devices such as PROM burner or PROM programmer
  • Electrically Erasable and Programmable Read Only Memory (EEPROM) – This is a special type of PROM which you can successfully erase electronically by exposing it to an electrical charge. EEPROM programming and erasing takes approximately 4-10ms and can retain its content even after the power goes off. According to tech professionals, EEPROM can be programmed and erased about 10,000 times

Advantages of ROM

  • It is non-volatile in nature
  • Easy to test
  • It is more reliable than RAMs
  • Cannot be accidentally changed
  • Contents are known and can successfully be verified
  • It is static and doesn’t require refreshing

Uses of ROM

As stated earlier, content stored in ROM can only be read but in few cases, it can only be edited with difficulty or cannot be modified at all. For that case, ROM is used for updating the firmware. If you are hearing the word firmware for the first time, it’s simply data stored on your computer’s ROM to give instructions on how to operate the device.

The user cannot delete or change firmware without the help of special programs and usually remain in your device regardless of whether it is on or off.

A very practical example of ROM is the cartridge that is commonly used by game enthusiasts with game consoles to allow one system to run more than one game at once.

Functions of ROM

The primary function of the ROM is data storage. Any information stored in a ROM chip can only be read and can hardly be edited, but the good news is that data will be intact even after switching off the device or when the power supply is disconnected unexpectedly.

According to computer experts, ROM stores crucial programs needed during booting.

Advertisements

Bottom line

In a nutshell, Read-only Memory (ROM) store important information that controls your computer’s basic functionality like starting up, operating the computer fan and detecting peripherals.

The user or the system cannot edit the data and unlike RAM, the content stays recorded even after switching off the computer. Most importantly, ROM is an example of non-volatile memory just like flash memory and hard drives.

Advertisements

More articles

LEAVE A REPLY

Please enter your comment!
Please enter your name here

Trending Now.

Screen to Body Ratio: 22 Smartphones With the Highest Screen to Body Ratio in 2020

Screen to body ratio on a smartphone screen recently turned into an important thing to consider when comparing smartphones.  It became more important after...

How to Apply For NYSC Revalidation and Remobilization?

Every year thousands of Nigerian graduates register for the National Youth Service Corps program and are sent to different parts of the country to...

6 Different Types of Car Engines

An engine is the soul and heart of your car simply because it’s the most important part of a vehicle. It acts as the...

Startimes Subscription Prices, Packages and Channels List in 2020

StarTimes Nigeria is one of the popular cable TV providers in Nigeria. This service is a subsidiary of a Chinese based company called Startimes...

Netflix Download Limit: What Is It and How You Can Get Around It?

Netflix introduced its 'download feature' for offline viewing back in 2016, allowing its users to download content and enjoy it offline while they are...

Uses and Functions of ROM (Read-only Memory)

A computer is a very important device and besides being the best gadget to play your favorite video games or watching your favorite movies,...

5 Best Blood Pressure Apps for Android

Blood pressure is the pressure the blood applies that on the walls of the vessels they use in travelling. There are two conditions relating...

6 Different Types of Motherboards

Motherboards are considered as the heart of any computer you use. This is mainly because they contain important components such as the memory and...

Definition of RAM, Its Uses and Functions

We are in the 21st century and regardless of how we deny it, we are truly living in a digital era. All people young...

GB WhatsApp, WhatsApp Plus and OG WhatsApp Tips and Tricks

Checkout the new GB WhatsApp Tutorial. Hello, welcome to WhatsApp Plus, OG WhatsApp and GB WhatsApp tips and tricks. For the sake of this article,...