Hence, no matter how fast the processor is, the processing speed depends more on the speed of the main memory the strength of a chain is the strength of its weakest link.
Write short notes on the three types of computer viruses?
The high-speed system bus interconnecting the cache to the microprocessor. With every new application and software there is greater demand for memory capacity. A computer also works this way. The need for the cache memory is due to the mismatch between the speeds of the main memory and the CPU.
Memory is needed in all computers. Nothing permanent is kept in main memory. However, if you knew each sender personally, you should send individual thank-you cards to each person.
Links to Related Information. ROM contains boot-up programming that is used each time a computer is turned on. When passing current through a superconductor, there is no loss of electrical power due to these materials. It is the working memory of the computer. Suppose, for example, that a VHS tape is fully rewound; then to get to the fifth hour of video stored on that tape, you must fast forward past the first four hours.
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EPROM chip can be programmed time and again by erasing the information stored earlier in it. The cost of storing data in tapes is inexpensive. A material which has no resistance to electricity.
RAM access time is in nanosecondswhile storage memory access time is in milliseconds.
What is virtual memory? The performance of the computer system depends upon the size of the memory. Short-term memory is focused on immediate work, but it can only keep a limited number of facts in view at any one time.
In PC also you can use tapes in the form of cassettes. It is very important. Operating systems can compensate for physical memory shortfalls by creating virtual memory.
To help the member countries in receipt and payment. A computer cannot run without the primary memory. This data must be constantly refreshed with an electronic charge every few milliseconds to compensate for leaks from the capacitator. It is also very expensive to have bigger size of cache memory and its size is normally kept small.
You know that it is not possible to modify or erase programs stored in ROM, but it is possible for you to store your program in PROM chip. Data is permanently stored even if power is switched off.
Write short note on assembler?
The primary storage is referred to as random access memory RAM because it is possible to randomly select and use any location of the memory directly store and retrieve data. Faster than secondary memories.
The cache memory stores the program or its part currently being executed or which may be executed within a short period of time.
It is used for storage of data in a computer. Random Access Memory, on the other hand, can only hold data temporarily. Because of its slower speed, nonvolatility and lower cost, flash is often used for storage memory in SSDs. Answer In the computer world, "memory" is generally used in reference to RAM.
A computer program that takes non-machine language instructions prepare by a computer user and converts them intto a for that may be used by the computer: Sometimes data are placed in main memory for just a few seconds, only as long as they are needed.
If not, whatever "page" of virtual memory holds the desired item must first be "swapped" into RAM from the diskreplacing some page of data that was already there, which itself gets written to the disk.The computer memory is a temporary storage area. It holds the data and instructions that the Central Processing Unit needs.
Before a program can be run, the program is loaded from some storage medium into the memory. This allows the CPU direct access to. RAM is the main memory in a computer, and it is much faster to read from and write to than other kinds of storage, such as a hard disk drive, solid-state drive or optical drive.
Random Access Memory is volatile.
A memory is just like a human brain. It is used to store data and instructions. Computer memory is the storage space in the computer, where data is to be processed and instructions required for processing are stored.
The memory is divided into large number of small parts called cells. Each location. A user will see or feels that all the Programs are running into the Logical Memory of the Computer. With the help of virtual Memory all the Space of Hard Disk can be used as the Logical Memory So that a user can execute any Number of programs.
Write Short Note on Shortest Seek Time First or SSTF ; What is MUTEX ; What is Marshalling. Write a short note on a modal of digital computer and its function? Digital Computers A digital computer is designed to process data in numerical form (see digital circuit); its circuits perform directly the mathematical operations of additi on, subtraction, multiplication, and division.
Sometimes data are placed in main memory for just a few seconds, only as long as they are needed. QUESTION 6: Imagine that you are using a computer to write a book report on Tom Sawyer. Where is the word processor program that you are running located?Download