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What are effective address and physical address for based addressing mode?
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What is segment overlapping?
Each segment register is multiplied by 16 before being added to the effective address during physical address computation. As a result, sequential values of segment registers result in physical addresses that are 16 bytes apart, yet, the maximum distance, based on effective address is 64 KB. That is why the segmented memory addressing approach in the 8086/8088 is overlapping - there are 64 K different combinations of segment register / effective address pair that will result is the same physical address. Well - sort of - its not wrap around - its a sliding window - call it a 16 byte paragraph size with an addressability range of 64 KB.
What is overlapping segment addresses?
Each segment register is multiplied by 16 before being added to the effective address during physical address computation. As a result, sequential values of segment registers result in physical addresses that are 16 bytes apart, yet, the maximum distance, based on effective address is 64 KB. That is why the segmented memory addressing approach in the 8086/8088 is overlapping - there are 64 K different combinations of segment register / effective address pair that will result is the same physical address. Well - sort of - its not wrap around - its a sliding window - call it a 16 byte paragraph size with an addressability range of 64 KB.
Why the array is starting from zero?
By design; it makes the compiler's work easier. 1-based array's addressing-function: Address (array, index) = Address (array) + (index-1)*Elemsize(array) 0-based array's addressing-function: Address (array, index) = Address (array) + index*Elemsize (array)
Is physical address same as email address?
No. Your physical and email addresses are based on two unrelated addressing systems. Your physical or postal address relates to your actual geographical location relative to other physical addresses. A physical address is generally assigned to a particular geophysical location by the United States Postal Service (USPS) and is rarely if ever changed.Although your email address functions in much the same way as a physical address, providing a unique identifying label by which personal communications can be sent to you, it has no "physical" existence. It is simply a unique identification code on a computer network. It is this uniqueness, rather than its location that allows your email messages to find you. Therefore, it can be changed as often you wish, yet still refer to the same person.
Explain different types of addressing mode?
Addressing modes are an aspect of the instruction set architecture in most central processing unit (CPU) designs. The various addressing modes that are defined in a given instruction set architecture define how machine language instructions in that architecture identify the operand (or operands) of each instruction. An addressing mode specifies how to calculate the effective memory address of an operand by using information held in registers and/or constants contained within a machine instruction or elsewhere.Number of addressing modesDifferent computer architectures vary greatly as to the number of addressing modes they provide in hardware. There are some benefits to eliminating complex addressing modes and using only one or a few simpler addressing modes, even though it requires a few extra instructions, and perhaps an extra register.[1] It has proven[citation needed] much easier to design pipelined CPUs if the only addressing modes available are simple ones. Most RISC machines have only about five simple addressing modes, while CISC machines such as the DEC VAX supermini have over a dozen addressing modes, some of which are quite complicated. The IBMSystem/360 mainframe had only three addressing modes; a few more have been added for the System/390.When there are only a few addressing modes, the particular addressing mode required is usually encoded within the instruction code (e.g. IBM System/390, most RISC). But when there are lots of addressing modes, a specific field is often set aside in the instruction to specify the addressing mode. The DEC VAX allowed multiple memory operands for almost all instructions, and so reserved the first few bits of each operand specifier to indicate the addressing mode for that particular operand. Keeping the addressing mode specifier bits separate from the opcode operation bits produces an orthogonal instruction set.Even on a computer with many addressing modes, measurements of actual programs[citation needed] indicate that the simple addressing modes listed below account for some 90% or more of all addressing modes used. Since most such measurements are based on code generated from high-level languages by compilers, this reflects to some extent the limitations of the compilers being used
What Bridges filter network frames based on?
physical address
Describe the three different process addressing mechanisms?
1.Explicit Addressing 2.Implicit Addressing 3.Link Based Addressing
What is 31-bit addressing on a mainframe?
31 bit addressing is a way of accessing the virtual memory. Based on the memory available the bit in the address can change. Or viceversa. for 31 bit the memory available is gb and for 24 bit its 16mb.
What are Internet Addressing and Accessing Systems?
Various types of addressing and accessing systems exist. IP Address, DNS, Domain Name, URL and Keywords are one of the oldest, extensively and commonly used systems.The latest form of Internet Addressing is called a Keyword Identifier.A Keyword Identifier is a unique, standardized, alpha-numeric, multi-lingual, natural language form of addressing that denotes the address of Electronic Resources and Processes.The Keyword Identifier or KI is a Keyword based form of addressing and denotes the address of Electronic Resources. This form can be used to address web pages, products, events, processes, and other forms of data. It is a form that can not just be easily recognized by humans but can also be recognized as a patter by software systems.
Name 2 networking devices that transmit packets based on MAC address?
A MAC address is used as a unique identifier that is assigned to network interfaces. Two networking devices that transmit packets based on MAC addresses are switches and bridges.
Identify the class of an IP address based on the network number?
In classful addressing, the class of an IP address can be determined by the value in the first octet: 0 - 126 class A 128 - 191 class B 192 - 223 class C
Is it best to use your physical address or PO Box for a home-based business?
It depends on which is more important to you:If your privacy or your and your family's safety, use a PO Box addressIf your prospects' and clients' trust, use your physical address
