Chapter 8. Secondary Storage
The storage devices are broadly classified into Secondary storage and primary storage.The data Storage Devices come in many sizes and shapes. And more over the technology used for the storage of the data over them is also altogether different. The storage devices are one of the most important components of the computer system. The memory is of two types; one is the primary memory and the other one is the secondary memory.
The primary memory is the volatile memory and the secondary memory is the non volatile memory. The volatile memory is the kind of the memory that is erasable and the non volatile memory is the one where in the contents cannot be erased. Basically when we talk about the data storage devices it is generally assumed to be the secondary memory.
The secondary memory is used to store the data permanently in the computer. The secondary storage devices are usually as follows: hard disk drives – this is the most common type of storage device that is used in almost all the computer systems. The other ones include the floppy disks, the CD-Rom, and the DVD-ROm. The flash memory, the USB CARD etc.
CAREERS IN IT : Software engineers - analyze user's needs and create application software. Software engineers typically have experience in programming but focus on the design and development of programs using the principles of mathematics and engineering. They rarely write code themselves. Software engineers can expect to earn an annual salary in the range of $63,000 to $98,500.
A LOOK TO THE FUTURE : Your entire life recorded on a single disk...
Imagine if you could store every conversation you ever had on a single disk. What if you could capture your entire life on video stored on just a few disks? What if you could hold in your pocket the contents of the Library of Congress? Innovations in secondary storage capacity using molecular storage promise all of this and more.
In my view , Everything we do we do by means of Secondary stoarge , using in our life such things as USB, Flash cards, CD, DVD and old Floppy disks. we sent and receive data every day we move from one place to another for contatining the information with us we need these kinds of secondary storage. I got Flash card everything i need I saved them in flash card and usem them whenever I need. These devices play a great role in our lives .
The primary memory is the volatile memory and the secondary memory is the non volatile memory. The volatile memory is the kind of the memory that is erasable and the non volatile memory is the one where in the contents cannot be erased. Basically when we talk about the data storage devices it is generally assumed to be the secondary memory.
The secondary memory is used to store the data permanently in the computer. The secondary storage devices are usually as follows: hard disk drives – this is the most common type of storage device that is used in almost all the computer systems. The other ones include the floppy disks, the CD-Rom, and the DVD-ROm. The flash memory, the USB CARD etc.
CAREERS IN IT : Software engineers - analyze user's needs and create application software. Software engineers typically have experience in programming but focus on the design and development of programs using the principles of mathematics and engineering. They rarely write code themselves. Software engineers can expect to earn an annual salary in the range of $63,000 to $98,500.
A LOOK TO THE FUTURE : Your entire life recorded on a single disk...
Imagine if you could store every conversation you ever had on a single disk. What if you could capture your entire life on video stored on just a few disks? What if you could hold in your pocket the contents of the Library of Congress? Innovations in secondary storage capacity using molecular storage promise all of this and more.
In my view , Everything we do we do by means of Secondary stoarge , using in our life such things as USB, Flash cards, CD, DVD and old Floppy disks. we sent and receive data every day we move from one place to another for contatining the information with us we need these kinds of secondary storage. I got Flash card everything i need I saved them in flash card and usem them whenever I need. These devices play a great role in our lives .