Which of the following is true? a. Fields are composed of bytes b. Records are composed of fields c. Fields are composed of characters d. All of above

Which of the following is true?
a. Fields are composed of bytes
b. Records are composed of fields
c. Fields are composed of characters
d. All of above
by

1 Answer

Answer :

d. All of above
by

Related questions

Which of the following is true? A) Fields are composed of bytes B) Records are composed of fields C) Fields are composed of characters D) All of above

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Last Answer : Answer : D

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The ascending order or a data Hierarchy is a. bit - bytes - fields - record - file - database b. bit - bytes - record - field - file - database c. bytes - bit- field - record - file - database d. bytes -bit - record - field - file - database

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Last Answer : a. bit - bytes - fields - record - file - database

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In 8086 microprocessor one of the following statements is not true. a) Coprocessor is interfaced in MAX mode b) Coprocessor is interfaced in MIN mode c) I/O can be interfaced in MAX / MIN mode

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What is loader

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What is assembler

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How does the microprocessor differentiate between data and instruction

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What is Microcontroller and Microcomputer

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Define stack and explain stack related instructions

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What is the use of bi-directional buffers?

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What is the use of addressing modes, mention the different types

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Last Answer : LDA copies the data byte into accumulator from the memory location specified by the 16-bit address. STA copies the data byte from theaccumulator in the memory location specified by 16-bit address. DAA changes the contents of the accumulator from binary to 4-bit BCD digits.

Mention the categories of instruction and give two examples for each category

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Last Answer : The instructions of 8085 can be categorized into the following five • Data transfer MOV Rd,Rs STA 16-bit • Arithmetic ADD R DCR M • Logical XRI 8-bit RAR • Branching JNZ CALL 16-bit • Machine control HLT NOP

Explain the signals HOLD, READY and SID

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How many machine cycles does 8085 have, mention them

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What is the use of ALE

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Last Answer : The ALE is used to latch the lower order address so that it can be available in T2 and T3 and used for identifying the memory address. During T1 the ALE goes high, the latch is transparent ... is the lower order address. When ALE goes low the lower order address is latched until the next ALE.

What is an instruction?

Description : What is an instruction?

Last Answer : An instruction is a binary pattern entered through an input device to command the microprocessor to perform that specific function

Define instruction cycle, machine cycle and T-state

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Last Answer : Instruction cycle is defined, as the time required completing theexecution of an instruction. Machine cycle is defined as the time required completing one operation of accessing memory, I/O or ... request. Tcycle is defined as one subdivision of the operation performed in one clock period

Basic concepts in memory interfacing

Description : Basic concepts in memory interfacing

Last Answer : The primary function of memory interfacing is that the microprocessor should be able to read from and write into a given register of a memory chip. To perform these operations the microprocessor ... Be able to select the chip Identify the register Enable the appropriate buffer

How many interrupts does 8085 have, mention them

Description : How many interrupts does 8085 have, mention them

Last Answer : The 8085 has 5 interrupt signals; they are INTR, RST7.5, RST6.5, RST5.5 and TRAP

Steps involved to fetch a byte in 8085

Description : Steps involved to fetch a byte in 8085

Last Answer : i. The PC places the 16-bit memory address on the address bus ii. The control unit sends the control signal RD to enable the memory chip iii. The byte from ... byte is placed in the instruction decoder of the microprocessor and the task is carried out according to the instruction

What are operations performed on data in 8085

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Last Answer : The various operations performed are • Store 8-bit data • Perform arithmetic and logical operations • Test for conditions • Sequence the execution of instructions • Store data temporarily during execution in the defined R/W memory locations called the stack

What is the signal classification of 8085

Description : What is the signal classification of 8085

Last Answer : All the signals of 8085 can be classified into 6 groups • Address bus • Data bus • Control and status signals • Power supply and frequency signals • Externally initiated signals • Serial I/O ports

What is a microcomputer?

Description : What is a microcomputer?

Last Answer : A computer that is designed using a microprocessor as its CPU is called microcomputer.

Explain priority interrupts of 8085.

Description : Explain priority interrupts of 8085.

Last Answer : The 8085 microprocessor has five interrupt inputs. They are TRAP, RST 7.5, RST 6.5, RST 5.5, and INTR. These interrupts have a fixed priority of interrupt service. If two or more interrupts go ... 8085 is shown in the table. Interrupts Priority TRAP RST 7.5 RST 6.5 RST 5.5 INTR

What is meant by interrupt?

Description : What is meant by interrupt?

Last Answer : Interrupt is an external signal that causes a microprocessor to jump to a specific subroutine.