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What is the von Neumann model?
Both instructions & data are stored in the same memory. This allowed easy loading of new code, self modifying code, etc. as code looked just like data.
Where do you find historical data for the Lehman Brothers Aggregate Bond index?
https://live.lehman.com/UAM/ct_logon?CT_ORIG_URL=%2FLL%2Fdispatcher%3Ffrom%3Dct_logon&ct_orig_uri=%2FLL%2Fdispatcher%3Ffrom%3Dct_logon Just need a log in code.......
Who inveted computer?
John Neumann is the inventor of the computers that use RAM to store both the code and the data.
What are the roles of a Statistical Officer?
Statistical officers have many responsibilities including checking source data. They may also be responsible for check code data and compile reports and charts to receive analysis.
Why is it that Data Processing is the most important function of the computer?
That's what computers were designed to do...process data...make our live simpler.
What is data segment memory and code segment memory?
Code Segment, in which all the application code is stored Data Segment, that holds the global data
What is the example of segment register?
There are four segment registers on the 8086 and 8088. These are CS (code for code), DS (data segment), ES (extra data segment), and SS (stack segment).
What is .model small in 8086?
One code-segment. One data-segment. Thus neither code nor data may be greater than 64K
What are the different types of segment register?
The code segment (CS) register is used for access to program code. The data segment (DS) register is used for access to data. The extra segment (ES) register is used for access to data during certain string primitive operations. The stack segment (SS) register is used for access to stack data.Any of these implied uses can be overridden with a segment override prefix opcode.
Difference between code segment and data segment of an instruction?
In the 8086/8088 microprocessor, the code segment is used to fetch the opcode and any additional instruction bytes that might be part of the instruction, while the data segment is used to fetch and/or store any operand bytes that the instruction requires to be manipulated.This is in the case of no segment override prefix.
Does each UNIX process have its own system data segment containing data needed by the operating system when the process is active?
Yes, each process has its own private data segment that is not shared with other processes. Processes can share executable code because the code does not get modified, but data is particular to the program that is using it, so it must be kept separate.
What is the difference between program and data memory?
When the program is compiled and linked different parts of the program is organised in separate segments. That is our code will be in one segment code means the instructions to be executed this is called as code segment or program memory this is usually readonly. Then there are data which on which the code operates,these data get stored in a segment called data segment. Stack memory is a part of programs memory which will be used as stack in case of function calls to store the IP and parameters variables of the current function. The three types of memory specified above are owned by the corresponding process or program the linker will give info abt where to store which data to the loader, based on these infos loader will load the corresponding image i.e executable in the memory.
Which of the following types of memory contain data that cannot be modified by the user?
Pick one: ROM, PROM, EPROM write-protected magnetic disk/tape, CD-ROM, DVD-R write-protected partition/file, other user's or sysadmin's file code-segment, read-only data-segment, other user's or kernel's code- or data-segment
What resolves references from object code files and libraries file?
References are resolved by their offset within the data segment.
How many base registers are there in 8086?
There are four base registers in the 8086/8088; Code Segment (CS), Data Segment (DS), Stack Segment (SS), and Extra Segment (ES).
How many segment can be directly addressed at a particular time by 8086 microprocessor?
There are four segment registers in the 8086/8088, Code Segment (CS), Stack Segment (SS), Data Segment (DS), and Extra Segment (ES). As a result, there are four segments that can be directly addressed at a particular time, i.e. without an extra instruction to reload a segment register.
A Explain the use of Code Segment CS and data segment DS register in 8086 microprocessor?
Code segment (CS) is a 16-bit register containing address of 64 KB segment with processor instructions. The processor uses CS segment for all accesses to instructions referenced by instruction pointer (IP) register. CS register cannot be changed directly. The CS register is automatically updated during far jump, far call and far return instructions. Data segment (DS) is a 16-bit register containing address of 64KB segment with program data. By default, the processor assumes that all data referenced by general registers (AX, BX, CX, DX) and index register (SI, DI) is located in the data segment. DS register can be changed directly using POP and LDS instructions. Code segment (CS) is a 16-bit register containing address of 64 KB segment with processor instructions. The processor uses CS segment for all accesses to instructions referenced by instruction pointer (IP) register. CS register cannot be changed directly. The CS register is automatically updated during far jump, far call and far return instructions. Data segment (DS) is a 16-bit register containing address of 64KB segment with program data. By default, the processor assumes that all data referenced by general registers (AX, BX, CX, DX) and index register (SI, DI) is located in the data segment. DS register can be changed directly using POP and LDS instructions.
