CoolInterview.com - World's Largest Collection of Interview Questions & Answers, FAQs, queries, sample papers, exam papers, dumps, what, why, how, where, when questions
Our Services
Get 9,000 Interview Questions & Answers in an eBook.




Get it now !!
Send your Resume to 6000 Companies
Central Processing Unit Interview Questions & Answers - Learning Mode
COOLINTERVIEW.COM COMPUTER HARDWARE INTERVIEW QUESTIONS CENTRAL PROCESSING UNIT INTERVIEW QUESTIONS QUESTIONS & ANSWERS - LEARNING MODE

Central Processing Unit Interview Questions & Answers - Learning Mode

A central processing unit (CPU) is the electronic circuitry within a computer that carries out the instructions of a computer program by performing the basic arithmetic, logical, control and input/output (I/O) operations specified by the instructions. The central processing unit (CPU) is the brain of your computer. It handles all the instructions you give your computer, and the faster it does this, the better.

Try Central Processing Unit Interview Questions & Answers - Exam Mode

1

Sort By : Latest First | Oldest First | By Rating

Central Processing Unit Interview Questions & Answers - Learning Mode
Try Central Processing Unit Interview Questions & Answers - Exam Mode
Question: What are the different functional units in 8086?

Answer: Bus Interface Unit and Execution unit, are the two different functional units in 8086.
Source: CoolInterview.com
Question: What are the various registers in 8085?

Answer: Accumulator register, Temporary register, Instruction register, Stack Pointer, Program Counter are the various registers in 8085
Source: CoolInterview.com
Question: What is Non-Maskable interrupts?

Answer: An interrupt which can be never be turned off (ie. disabled) is known as Non-Maskable interrupt
Source: CoolInterview.com
Question: What happens when HLT instruction is executed in processor?

Answer: The Micro Processor enters into Halt-State and the buses are tri-stated. Source: CoolInterview.com
Question: What is clock speed?

Answer: It is also called clock rate, the speed at which a microprocessor executes instructions. Every computer contains an internal clock that regulates the rate at which instructions are executed and synchronizes all the various computer components. The CPU requires a fixed number of clock ticks (or clock cycles) to execute each instruction. The faster the clock, the more instructions the CPU can execute per second.
Clock speeds are expressed in megahertz (MHz) or gigahertz (GHz).

The intern Source: CoolInterview.com
Question: What is meant by Maskable interrupts?


Answer: An interrupt that can be turned off by the programmer is known as Maskable interrupt.
Source: CoolInterview.com
Question: What is CPU?

Answer: Abbreviation of central processing unit, and pronounced as separate letters. The CPU is the brains of the computer. Sometimes referred to simply as the processor or central processor, the CPU is where most calculations take place. In terms of computing power, the CPU is the most important element of a computer system.
On large machines, CPUs require one or more printed circuit boards. On personal computers and small workstations, the CPU is housed in a single chip called a microprocessor.
Source: CoolInterview.com
Question: What is the Celeron processor?

Answer: A brand name for a line of Intel microprocessors introduced in June, 1998. Celeron chips are based on the same P6 architecture as the Pentium III microprocessor, but are designed for economical or valued PCs. They run at lower clock speeds and are not as expandable as Pentium III microprocessors. Source: CoolInterview.com
Question: What is the Pentium processor?

Answer: A 32-bit microprocessor introduced by Intel in 1993. It contains 3.3 million transistors, nearly triple the number contained in its predecessor, the 80486 chip. Though still in production, the Pentium processor has been superseded by the Pentium Pro and Pentium II microprocessors. Since 1993, Intel has developed the Pentium III and more recently the Pentium 4 microprocessors. Source: CoolInterview.com
Question: Where does the Real mode on the CPU come from?

Answer: The original 8086, which only had 1 MB of memory. This megabyte is split into low memory for IRQ tables, application memory and high memory.
Source: CoolInterview.com
Question: What is Program counter?

Answer: Program counter holds the address of either the first byte of the next instruction to be fetched for execution or the address of the next byte of a multi byte instruction, which has not been completely fetched. In both the cases it gets incremented automatically one by one as the instruction bytes get fetched. Also Program register keeps the address of the next instruction
Source: CoolInterview.com
Question: What is 1st / 2nd / 3rd / 4th generation processor?

Answer: The processor made of PMOS / NMOS / HMOS / HCMOS technology is called 1st / 2nd / 3rd / 4th generation processor, and it is made up of 4 / 8 / 16 / 32 bits.
Source: CoolInterview.com
Question: Name the processor lines of two major manufacturers?

Answer: High-end: Intel - Pentium (II, III, 4), AMD - Athlon.

Low-end: Intel - Celeron, AMD - Duron. 64-bit: Intel - Itanium 2, AMD - Opteron.
Source: CoolInterview.com
Question: Name the processor lines of two major manufacturer?

Answer: High-end: Intel - Pentium (II, III, 4), AMD - Athlon. Low-end: Intel - Celeron, AMD - Duron. 64-bit: Intel - Itanium 2, AMD - Opteron.
Source: CoolInterview.com
Question: What is the Maximum clock frequency in 8086?

Answer: 5 Mhz is the Maximum clock frequency in 8086. Source: CoolInterview.com
Question: What are the various segment registers in 8086?

Answer: Code, Data, Stack, Extra Segment registers in 8086.
Source: CoolInterview.com

1



India News Network
Latest 20 Questions
Payment of time- barred debt is: (a) Valid (b) Void (c) Illegal (d) Voidable
Consideration is defined in the Indian Contract Act,1872 in: (a) Section 2(f) (b) Section 2(e) (c) Section 2(g) (d) Section 2(d)
Which of the following is not an exception to the rule, "No consideration, No contract": (a) Natural love and affection (b) Compensation for involuntary services (c) Completed gift (d) Agency
Consideration must move at the desire of: (a) The promisor (b) The promisee (c) The promisor or any other party (d) Both the promisor and the promisee
An offer which is open for acceptance over a period of time is: (a) Cross Offer (b) Counter Offer (c) Standing Offer (d) Implied Offer
Specific offer can be communicated to__________ (a) All the parties of contract (b) General public in universe (c) Specific person (d) None of the above
_________ amounts to rejection of the original offer. (a) Cross offer (b) Special offer (c) Standing offer (d) Counter offer
A advertises to sell his old car by advertising in a newspaper. This offer is caleed: (a) General Offer (b) Special Offer (c) Continuing Offer (d) None of the above
In case a counter offer is made, the original offer stands: (a) Rejected (b) Accepted automatically (c) Accepted subject to certain modifications and variations (d) None of the above
In case of unenforceable contract having some technical defect, parties (a) Can sue upon it (b) Cannot sue upon it (c) Should consider it to be illegal (d) None of the above
If entire specified goods is perished before entering into contract of sale, the contract is (a) Valid (b) Void (c) Voidable (d) Cancelled
______________ contracts are also caled contracts with executed consideration. (a) Unilateral (b) Completed (c) Bilateral (d) Executory
A offers B to supply books @ Rs 100 each but B accepts the same with condition of 10% discount. This is a case of (a) Counter Offer (b) Cross Offer (c) Specific Offer (d) General Offer
_____________ is a game of chance. (a) Conditional Contract (b) Contingent Contract (c) Wagering Contract (d) Quasi Contract
There is no binding contract in case of _______ as one's offer cannot be constructed as acceptance (a) Cross Offer (b) Standing Offer (c) Counter Offer (d) Special Offer
An offer is made with an intention to have negotiation from other party. This type of offer is: (a) Invitation to offer (b) Valid offer (c) Voidable (d) None of the above
When an offer is made to the world at large, it is ____________ offer. (a) Counter (b) Special (c) General (d) None of the above
Implied contract even if not in writing or express words is perfectly _______________ if all the conditions are satisfied:- (a) Void (b) Voidable (c) Valid (d) Illegal
A specific offer can be accepted by ___________. (a) Any person (b) Any friend to offeror (c) The person to whom it is made (d) Any friend of offeree
An agreement toput a fire on a person's car is a ______: (a) Legal (b) Voidable (c) Valid (d) Illegal
Cache = 0.03125 Seconds