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Intel 8086 and 8088

The Intel 8086/8088 family of microprocessors is a 16 bit architecture on a 16 bit (8086) or an 8 bit (8088) bus. The 8088 was the processor in the original IBM PC, and has evolved into the most popular processor used today in PC's and servers.

1,056 Questions

The width of a data bus is called?

The width of a data bus is referred to as the data path size. An example would be a 16 bit bus can transmit 16 bits of information

What are the different types of microprocessors?

based on bit of operation at a time

8 bit, 16 bit, 32 bit, 64bit (now days) and etc So far i know, they are Laptop, Desktop, Server and Embedded processors, for example Laptop- Intel Centrino, Desktop- Intel Pentium, Server- Intel Xeon, Atom, Embedde- ARM and classification of microprocessor considering instruction sets they process: RISC - Reduced instruction set computing (oven, AC etc.) CISC - Complex instruction set computing (eg. laptop, desktop processor)

What does a data bus carry?

The data bus carries the information from various peripheral devices to the processor, and from the processor to the devices. For example, a running game loads from the hard drive over the SATA or IDE bus, then the CPU processes the data, and sends it to the graphics bus, which displays it on your monitor

If 00000111 in a register is shifted to read 00111000 the arithmetic operation is?

Each shift left is the same as multiplying by 2, so shifting 3 times to the left is the same as multiplying by 2³; ie multiply by 8.

What does the snow mode function do on a 2006 Toyota Highlander?

Starts you off in second gear. Also changes the ECM profiles giving you better revs.

Why 8086 microprocessor do not have op-code fetch cycle?

Every processor has an op-code fetch cycle. Otherwise, it would not be able to fetch instructions. In the case of the 8086, the three status lines S2, S1, and S0 will have high, low, and low values to indicate an op-code fetch.

Will an Intel Pentium III computer support 512 MB of SDRAM?

Yes. Though the amount the processor can access is far more limited by the chipset / motherboard than the actual processor. Theoretically, a Pentium II could support up to 4 GB of RAM (and even 64 GB of RAM if PAE enabled), but no chipset for desktop and standard server ever supported more than 2 GB for it, and most motherboards only supported 512 to 768 MB.

Difference between effective address and physical address?

The effective address is the address generated by the program, after all transformations, such as index registers, offsets, addressing mode, etc. have been made. The physical address is the address generated by the hardware, after performing whatever lookups through the page table, etc. have been made. The effective address, or virtual address, is the concern of the program. The physical address, or real address, is the concern of the operating system.

What is the function of data segment register?

The data segment register (DS) is a critical component in the architecture of x86 processors, primarily used to point to the segment of memory that contains data. It helps manage memory by allowing the CPU to access a specific area of memory where variables and data structures are stored. By using the DS, the processor can efficiently read from and write to the data segment, facilitating organized memory access in segmented memory models.

What elements might the data link layer add to its pdu a physical addresses b logical addresses c data d crc?

The data link layer typically adds physical addresses (also known as MAC addresses) to its Protocol Data Unit (PDU) to ensure that data is delivered to the correct device on a local network. Additionally, it often includes a CRC (Cyclic Redundancy Check) for error detection, ensuring the integrity of the transmitted data. Logical addresses and the original data payload are not added at this layer; logical addressing is handled at the network layer above it.