Thursday, August 15, 2019

What is a RAM in computer?


Ram means Random Access Memory. It is a short-term memory, much like the brain of a human, which stores information. RAM is known as volatile memory because if the computer loses power, all the RAM data will be lost. Non-volatile memory is a memory that keeps its data while the system isn't running. The RAM is accessible through the computer's brain called the CPU, which stands for the Central Processing Unit. 

 

The RAM is the memory being used when the computer system is ON. When the computer is turned off, the RAM is no longer accessible. Today's computer comes with at least 512MB RAM size. Additional RAM can be placed within the system, but there is usually a limitation placed upon just how much RAM can be added to a computer system.  


Some of the commonly used RAM today is

  • Static RAM (SRAM)
  • Dynamic RAM (DRAM)
  • Synchronous Dynamic RAM (SDRAM) and so on.

 

Monday, August 12, 2019

USB Flash Drive

USB flash drive or any other flash memory drive is an EEPROM that means electrically erasable programmable read-only memory. USB flash memory sticks are:

  • Nothing but an EEPROM assembly.
  • A controller with a RISC microprocessor RAM.
  • ROM. 


All of this interacts with a computer using a USB controller and connector because USB sticks are EEPROM that can hold data for as long as ten years. UBS thumb usually drives don't require drivers, but with few old operating systems like windows 98 and windows 95, you need drivers provided by the manufacturer. 


Latest OS considers USB drives as USB mass storage devices and has built-in support for these drives, which means you don't need any drivers; plug in the drive and start using it. Some Linux versions might recognize it but won't let you use it until you manually mount the drive. 

Why You Really Need HEADPHONES

Listening to my music through a set of quality hi-fi home theatre speakers is the ultimate for me, at least until I found the other option. I like hearing the mid-range vocals coming out clear and crisp. As a bass guitarist, the bass is something I want to feel as well. 

The problem comes when everyone else wants to sleep, and I still want to listen to my favorite music. In my quest to feed the audiophile inside me, I finally determined headphones were the answer. 


I discovered “these cans” had come a long way since the last time I was looking. I had choices and a lot of them. I could get them with an open-end or closed-end. In my case, I determined a closed-end would be best so what I was listening to could not go out and disturb anyone around me. It seems with an open back; the sound is still dispersed somewhat into the surrounding area.


I found out about passive and active noise canceling. I had to choose whether I wanted the background noise canceled by just the earpieces themselves (passive) or were those tiny electronics inside going to stop the ambient noise (active). Outside sounds like people talking and appliances running would also not affect my streaming audio. I liked this idea. I found makes and types that allowed me to switch between active and passive mode. I ran into a technology I had never heard before about stereo headsets in my quest for the best headphones. Bluetooth. What is Bluetooth? Wireless? No cords? You have got to be kidding. 

This wireless stuff was sounding very interesting. I could move with my music and not land on my keester because I tripped on the cord. All I had to do was buy a wireless set for my stereo, and I was good to go. I could move up to 300 feet away and still enjoy my tunes. I could be all over the house and listen to the radio or my favorite CD. I liked this option. 


Because of what I was able to find out, I could make my choice of the headphones I wanted. I am pleased with what I bought. There is a set out there for you, too. Just do some research and some reviews like I did, and you can discover a complete listening experience like no other.