8085, Z-80 and 6502
are 8-bit microprocessors whereas 68000 is a 16-bit microprocessor.
Which is an 8-bit microprocessor?
| Manufacturer Processor Comment | Intel 8085 8080 binary compatible | Zilog Z8 Harvard architecture microcontroller | Motorola 6809 6800 source compatible | Intel 8051 Harvard architecture microcontroller |
|---|
Which is the first 8-bit microprocessor?
Work on the 8080, the first single-chip microprocessor, began in 1972 largely because of the perseverance of Federico Faggin. Faggin led Intel’s development of the world’s first microprocessor, the 4-bit 4004 released in 1971, and the first 8-bit processor,
the 8008
, in 1972.
Is 8085 an 8-bit or a 16-bit microprocessor?
Although the
8085 is an 8-bit processor
, it has some 16-bit operations. Any of the three 16-bit register pairs (BC, DE, HL or SP) can be loaded with an immediate 16-bit value (using LXI), incremented or decremented (using INX and DCX), or added to HL (using DAD).
Which one is not a 8-bit microprocessor?
INTEL8085,
MOTOROLA6800
, ZILOG280 are 8-bit microprocessors while FAIRCHILD9440 is a 16 bit microprocessor.
Why is it called 8-bit?
In computer science, the term word refers to the standard computational unit of a machine. That means an 8-bit processor has a word that’s eight bits long, which in turn means that
the C.P.U. processes eight bits in one operation
.
What are the applications of 8-bit microprocessor?
8-bit MCUs can implement an ultra-low-power platform that includes the complete signal chain for applications such as
personal blood pressure monitors, pulsoximeters, and heart rate monitors
. Remote patient monitoring is also a growing trend, using devices with integrated RF/ZigBee or Wi-Fi interfaces and transceivers.
What is meant by 8-bit?
8-bit is
a measure of computer information generally used
to refer to hardware and software in an era where computers were only able to store and process a maximum of 8 bits per data block. … This resulted in blocky graphics and slow compute times.
What is a 8-bit number?
The largest number you can represent with 8 bits is 11111111, or
255 in decimal notation
. Since 00000000 is the smallest, you can represent 256 things with a byte. (Remember, a bite is just a pattern.
What are 8-bit graphics?
8-bit graphics refers to
the capability of every pixel to use 8 bits for storing the amount of colors that can be displayed
. In a nutshell, 8-bit graphics refers to maximum 256 colors that can be displayed, whereas 16 bit means 65,536 colors and 34 bit means 16,777,215 colors.
Is 16bit Better than 32bit?
While a 16-bit processor can simulate 32-bit arithmetic using double-precision operands,
32-bit processors are much more efficient
. While 16-bit processors can use segment registers to access more than 64K elements of memory, this technique becomes awkward and slow if it must be used frequently.
What are the 3 types of buses?
- Address bus – carries memory addresses from the processor to other components such as primary storage and input/output devices. …
- Data bus – carries the data between the processor and other components. …
- Control bus – carries control signals from the processor to other components.
Why program counter is 16-bit register?
The program counter
acts as a pointer to the next instruction to be executed and always contains the 16-bit address of the memory location of next instruction
. It is a 16 bit register as 8085 has 16 address lines.
What is the first microprocessor?
The first
Intel® 4004 microprocessor
was produced on two-inch wafers compared to the 12-inch wafers commonly used for today’s products. The Intel 4004 microprocessor is unique in that it is one of the smallest microprocessor designs that ever went into commercial production.
What do you mean by 8-bit and 16 bit microprocessor?
The main difference between 8 bit and 16 bit microcontrollers is
the width of the data pipe
. … As you may have already deduced, an 8 bit microcontroller has an 8 bit data pipe while a 16 bit microcontroller has a 16 bit data pipe.
How many values can 8 bits store?
With 8 bits, the maximum number of values is
256
or 0 through 255. Table 5.1 gives the number of bits in a binary number and the maximum number of states that can be represented.
