What Is DMA Channel? A DMA channel enables a device to transfer data without exposing the CPU to a work overload. Without the DMA channels, the CPU copies every piece of data using a peripheral bus from the I/O device. What is DMA and how it works? Direct memory access (DMA) is a means of
What Is Known As Main Memory? Main memory is the primary, internal workspace in the computer, commonly known as RAM (random access memory). Specifications such as 4GB, 8GB, 12GB and 16GB almost always refer to the capacity of RAM. In contrast, disk or solid state storage capacities in a computer are typically 128GB or 256GB
Which Memory Is Erased When The Computer Is Turned Off? Volatile memory is memory that requires electric current to retain data. When the power is turned off, all data is erased. … Computers and other electronic devices use RAM for high-speed data access. The read/write speed of RAM is typically several times faster than a
What Is The Main Memory Unit? The main memory in a computer is called Random Access Memory. It is also known as RAM. This is the part of the computer that stores operating system software, software applications and other information for the central processing unit (CPU) to have fast and direct access when needed to
How Many Address Bits Are Required To Represent 8k Memory? 8K∗16=213∗16, thus 13 address lines and 16 data lines. How many address bits are needed to operated a 8K 8 ROM? How many address bits are needed to operated a 8k 8 ROM? Number of bits required to address 8 bits in 2048 x 8
How Instruction Can Be Fetched From The Main Memory To CPU? The CPU fetches the instructions one at a time from the main memory into the registers. One register is the program counter (pc). … The CPU decodes the instruction. The CPU executes the instruction. Repeat until there are no more instructions. How is an
Which Symbol Is Used To Obtain The Address Of A Variable From The Memory? Once we declared a pointer variable, we have to initialize the pointer with a valid memory address; to get the memory address of the variable ampersand is used. When we use the ampersand symbol as a prefix to the variable name
Where Are Program Instructions Stored? The CPU is the heart of the computer. A program is a sequence of instructions stored in main memory. When a program is run, the CPU fetches the instructions and executes or follows the instructions. Where are program instructions and data stored? Memory is the part of the computer that
What Are The Characteristics Of Primary Memory? These are semiconductor memories. It is known as the main memory. Usually volatile memory. Data is lost in case power is switched off. It is the working memory of the computer. Faster than secondary memories. A computer cannot run without the primary memory. What are the characteristics of
Is It Better To Have More Hard Drive Or Memory? The more memory your computer has, the more it’s able to think about at the same time. More RAM allows you to use more complex programs and more of them. … More hard drive storage allows you to store more things on your computer. However,