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See: Memory Management
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∙ 14y agomegabyte
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What is a difference between register and a memory location?
difference between register and memory location
What is a use of dereferencing operator?
A pointer variable contains the address to some memory location. "Dereferencing" the pointer means getting the value stored at that memory location.
How do pointer work in c program?
Pointer can be defined as variable that is used to store memory address , usually the location another variable in memory. Pointers provide a means through which memory location of a variable can be directly accessed.
What is poiner value in c?
In c a pointer is a variable that points to or references a memory location in which data is stored. Each memory cell in the computer has an address that can be used to access that location so a pointer variable points to a memory location we can access and change the contents of this memory location via the pointer. Pointer declaration A pointer is a variable that contains the memory location of another variable. The syntax is as shown below. You start by specifying the type of data stored in the location identified by the pointer. The asterisk tells the compiler that you are creating a pointer variable. Finally you give the name of the variable. type * variable name Example: int *ptr; float *string;
What is an address in C plus plus programming?
An address in C or C++ is the location in memory of an object or function. An address is the contents of a pointer, as opposed to the contents of the memory location pointed to by the pointer.
What is the name of the instructions to move data from one location in memory to another location in memory?
hey if its in the context of strings we can use string manipulation functions like strcpy(). in microprocessors we use rep movsb to move data from one memory location to other.
What is the name of the storage location in the computer's memory?
Depending on the architecture of the computer one addressable memory location might be called a word, a character, a parcel, a decimal digit, a byte, etc.
A gigabyte represents approximately how much memory location?
one billion
How many address lines are needed to address each machine location in a 2048 X 4 memory chip?
It depends on how wide the data buses are on each chip, and how they're connected. If they're one byte wide, you could need over 256 million addresses, one for each byte. if they're wider, and connected to show an even wider combined data bus, it could be much less; around 32 million.
Which virtual memory attribute is the only one a technician should change?
location
How many memory locations represents a kilobyte?
If a memory location stores one byte, then a kilobyte is made up of 1,000 locations.
What is a difference between register and a memory location?
difference between register and memory location
How many bit data can be stored in one memory location of 8086 microprocessor?
8
Where can memory books be bought?
Memory books can be usually bought at one's local bookstore, such Books-a-Million or any other local bookstore. If one is looking for a specific one, then one can check on Amazon.
What factor decides the bit size of a processor?
bit size is a wordlength of one memory location
Specific location of a byte of storage in the computer's memory?
Memory Addresses
What is a PLC Memory?
Memory is the component that stores information, programs, and data in a PLC. See more..... projuktiponno The process of putting new information into a memory location is called writing. The process of retrieving information from a memory location is called reading. Types of Memory The common types of memory used in PLCs are Read Only Memory (ROM) and Random Access Memory (RAM). A ROM location can be read, but not written. ROM is used to store programs and data that should not be altered. For example, the PLC’s operating programs are stored in ROM. A RAM location can be read or written. This means the information stored in a RAM location can be retrieved and/or altered. Ladder logic programs are stored in RAM. When a new ladder logic program is loaded into a PLC’s memory, the old program that was stored in the same locations is over-written and essentially erased. The memory capacities of PLCs vary. Memory capacities are often expressed in terms of kilobytes (K). One byte is a group of 8 bits. One bit is a memory location that may store one binary number that has the value of either 1 or 0. (Binary numbers are addressed in Module 2). 1K memory means that there are 1024 bytes of RAM. 16K memory means there are 16 x 1024 =16384 bytes of RAM.
