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Microprocessors
A microprocessor is the heart of any computer, whether it is a server, a desktop machine, or a laptop. This single chip contains the arithmetic, control, and logic circuitry necessary to interpret and execute computer programs.
2,578 Questions
What company is not a microprocessor manufacturer?
Most companies are not manufacturers of microprocessors.
What is the size of the accumulator register of 64 bit processor?
64 bit. the size of accumulator will always equal to the size of processor. e.g 32 bit processor has 32 bit accumulator.
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Actually on some computers the accumulator(s) are larger than the processor word size. Some examples are:
- IBM 704, IBM 709, IBM 7090, IBM 7094 - these are 36 bit processors with a 38 bit accumulator
- IBM 7030 - this is a 64 bit processor with a 128 bit accumulator
Some computers do not have accumulator(s), these fall into three main groups:
- Variable word length machines that store all data in main memory
- General purpose register machines
- Stack machines that either have a fixed sized internal stack or a variable sized stack stored in main memory
What is the function of processors in computers?
at the most basic level.
to do binary math, very very fast.
What is the difference between embedded systems and VLSI?
Embedded system is the term used to any computing system that is used to perform a limited or specialized task. Unlike a general purpose computer that can perform a wide variety of tasks and is very complex, an embedded system is rather simplistic and does not have unnecessary hardware. ATMs, routers, calculators, and mobile phones are a few examples of devices that have embedded systems in them. On the other hand, VLSI stand for Very Large Scale Integration, which is a term used to describe the complexity of an integrated circuit by giving a generalized idea of how many transistors are within the circuit. Integrated circuits that contain thousands of transistors in a single package are classified as VLSI
What is the difference between CISC and RISC?
RISC : Reduced Instruction Set Computer. A RISC system has a reduced number of instructions (making it easier to implement efficient optimizing compilers) and more importantly it is load store architecture where pipelining can be implemented easily. e.g. IBM PowerPC, ARM, Intel i960
CISC : Complex Instruction Set Computer. A CISC system has complex instructions (making it easier for a human to directly program in assembly language) such as direct addition between data in two memory locations. e.g. Intel Pentium (x86), DEC MicroVAX, Motorola 680x0
because 8085 is one of the landmark of 8-bit microprocessor history. it was more simple in construction than 8080. higher bit microprocessor can be understood very easily if one has prior knowledge of 8085.
dual purpose devices are the devices that can perform the fuction of input devices as well as output device at the same time
example
disk drive ,cd-writer etc
Is a microprocessor hardware or software?
If you can throw it across the room, it's hardware. The instruction set(s) is software. Example: Your child is hardware (don't throw him or her across the room). If you tell your kid to go to bed, that instruction is software.
Which is the most important item in a clientserver network A. Client B. Hub C. Server D. Media?
C. Server
Why a latch is used for an output port but a tri-state buffer can be used for an input port?
The Latch will hold the data until new data will changes from input of Buffer.
What are the subcomponents of CPU?
Sub components of a CPU :
a. Control Unit- This is in charge of keeping track of the task at hand and what needs to be done next.
b. Prefetch Unit- what the CPU needs data this looks for it.
c. Instruction cache- Storage place for data until control unit needs it.
d. Decode Unit- Breaks down commands for the CPU.
e. ALU- Handles basic math functions.
f. FPU- Handles Advanced math functions.
g. General Resisters - where data is stored and processed.
You have to a processor with an instruction set designed to improve performance with 3D graphics and other multimedia data. To take full advantage of MMX, SSE, SSE2, and 3DNow! technology, software must be written to use its specific capabilities.
*found on pages 382 & 436 of CompTIA A+ Guide to Hardware Managing, Maintining, and Troubleshooting; Fourth Edition; By Jean Andrews
Why 2 gnd are used in microprocessor 8086?
Two ground pins are used in the 8086 microprocessor to increase the bus pull-down current capacity.
What are the disadvantages of bit slice microprocessor?
The disadvantage of the bit slice microprocessor is that it is slow that it why it was slow with earlier processors.
Block diagram of a microprocessor used in washing machines?
block diagram whasing machine with instruction
Time when your CPU(Central Processing Unit) is idle(not being used by any program).
How can you write your name in ASCII code using 8 bit code and parity?
D =44
e = 65
b = 61
r =72
a = 61
What is execute cycle in microprocessor?
The sequence of operations that the cpu has to carry out while execution is called instruction cycle.
1:- Read an Instruction
2:- Decode the instruction
3:- Find the address of operand
4:- retrieve an operand
5:- perform desired operation
6:- find the address of destination
7:- store the result into the destination
What is the clock speed of the Sonnet Encore G4 1.8GHz CPU?
The Sonnet Encore G4 1.8GHz CPU operates at "1.8GHz" giving it the speed to run any intensive application.
