Computer Hardware Interview Questions

 
1.
What is the difference between , page directive include, action tag include?
2.
Have you used threads in Servelet?
3.
IBM Interview Questions in Bangalore?
4.
Difference between Java Beans & Servlets?
5.
Just by seeing the signature of the bean how can you specify whether it is a Stateful or Stateless Session Bean?
6.
What is the purpose of reserved word using in C#?
7.
What are the minimal cost and minimal risksolution?
8.
Which of the following is larger than 3/5? (1) ? (2) 39/50 (3) 7/25 (4) 3/10 (5) 59/100?
9.
Name of at least ten software companies
10.
How do you make programs portable on unix and Dos under such circumstances?
11.
How many logical drives is it possible to fit onto a physical disk?
12.
Why does microprocessor contain ROM chips?
13.
What is Microprocessor?
14.
What is object repository?
15.
What is the logical difference b/w Move A TO B and COMPUTE B = A?
16.
Why the temporary registers W and Z are named so i mean we start from A,B,C,D,E then H and L coz H stands for higher bit nd L for lower bit of the address pinted by memory pointer....but wats w and z for?
17.
Can 8259 be interfaced with 8085 via the trap pin?
18.
Why address bus is unidirectional and data bus is bidirectional?
19.
Can an RC circuit be used as clock source for 8085?
20.
In 8085 which is called as High order / Low order Register?
21.
What is the RST for the TRAP?
22.
What is clock frequency for 8085?
23.
How many interrupts are there in 8085?
24.
Name 5 different addressing modes?
25.
Which interrupt has the highest priority?
26.
What are Software interrupts?
27.
What are Hardware interrupts?
28.
In what way interrupts are classified in 8085?
29.
Give an example of one address microprocessor?
30.
What is Tri-state logic?
31.
What is meant by a bus?
32.
Which is the Stack used in 8085?
33.
What is Program counter in 8085?
34.
Which interrupt is not level-sensitive in 8085?
35.
What does Quality factor mean?
36.
What is the strength of the signal transmitted by powerful cell phones?
37.
In 8085 name the 16 bit registers?
38.
What are the various flags used in 8085?
39.
What is Stack Pointer?
40.
Which technology is used in Bluetooth for avoiding interference?
41.
Which microprocessor accepts the program written for 8086 without any changes?
42.
What does EU do?
43.
Which Flags can be set or reset by the programmer and also used to control the operation of the processor?
44.
Which Segment is used to store interrupt and subroutine return address registers?
45.
What is meant by cross-compiler?
46.
Give examples for Micro controller?
47.
Logic calculations are done in which type of registers?
48.
What is the position of the Stack Pointer after the POP instruction?
49.
What is the position of the Stack Pointer after the PUSH instruction?
50.
Which is the tool used to connect the user and the computer?
51.
What is internal structure of 8086?
52.
Where 8086 mostly used & tell application of 8086?
53.
Why memory width is not 16-bit? In stead of having 8-bit (same as 8085)?
54.
What is the difference between 8085 and 8086 in microprocessor?
55.
how many types memory mgt can divided?
56.
What is Piconet?
57.
What are the three main types of connection used by Bluetooth?
58.
Give example for Non-Maskable interrupts?
59.
Give examples for Maskable interrupts?
60.
Which interrupts are generally used for critical events?
61.
What is Non-Maskable interrupts?
62.
What are the various interrupts in 8086?
63.
What are the flags used in 8086?
64.
On a scale of one to ten, rate me as an interviewer now.
65.
Which Stack is used in 8086?
66.
Explain What is SIM and RIM instructions?
67.
What are the basic expansion card types?
68.
How to clear Computer Motherboard CMOS password?
69.
Where does the Real mode on the CPU come from?
70.
Where does CPU Enhanced mode originate from?
71.
Name the processor lines of two major manufacturers?
72.
What's the difference between L1 and L2 cache?
73.
What's the speed and device maximum specs for Firewire?
74.
Where's MBR located on the disk?
75.
What's the maximum hard drive size for FAT16-based Windows system?
76.
How many logical drives is it possible to fit onto a physical disk?
77.
WHat are * and ? when using them for wildcards in Windows?
78.
How does the browser know to go to a certain IP address when you enter a domain like google.com?
79.
What is Accelerator key?
80.
What is Active window?
81.
What is Asynchronous SRAM?
82.
What is BIOS (Basic Input and Output Software)?
83.
What is Bit?
84.
What is Binary?
85.
What is Byte?
86.
What is Button?
87.
What is CD-R?
88.
What is Activate?
89.
What is Cascade?
90.
What is Clicking?
91.
What is Close button?
92.
What is Color scheme?
93.
What is Associate?
94.
What is Auto arrange?
95.
What is Backward Compatible?
96.
What is CD-ROM?
97.
What is Check box?
98.
What is Clipboard?
99.
What is Collapsing?
100.
What is Command?
101.
What is Command button?
102.
What is Connection?
103.
What is Control Panel?
104.
What is Cursor?
105.
What is Desktop?
106.
What is Dialog box?
107.
What is Dial-up Networking?
108.
What is Double-click?
109.
What is Download?
110.
What is Drag?
111.
What is Drag and drop?
112.
What is Drop-down list?
113.
What is Drive?
114.
What is Driver software?
115.
What is DVD and DVD-ROM?
116.
What is Icon?
117.
What is Inactive window?
118.
What is Insertion point?
119.
What is Macro?
120.
What is the Interface?
121.
What is Map network drive?
122.
What is Maximize button?
123.
What is Minimize button?
124.
What is Modem?
125.
What is Mouse Cursor?
126.
What is Restore?
127.
What is Right-click?
128.
What is File?
129.
What is Floppy Disk?
130.
What is Focus?
131.
What is Folder?
132.
What is Open?
133.
What is Select?
134.
What is Text Formatting?
135.
What is Toolbar?
136.
What is Taskbar?
137.
Explain Toolbar?
138.
Explain Drive?
139.
What is the window XP repair console command?
140.
What is the full form of http?
141.
What is the Difference between Intel Core 2 duo and Dual Core and which one is better for processing?
142.
Why do we call motherboard a motherboard?
143.
What is the difference between the Physical drive and the Logical Drive. How do we Identify? How do to configure the logical drive?
144.
If the system is not booting what can we do?
145.
How would I describe the CPU (central processing unit) component of a computer system.?
146.
Which port can the keyboard be connected to?
which device connects to parallel port? which of the following is the newest type of connector for a printer interface?
147.
What is DHCP and how it works?
148.
What is the BIOS full form?
149.
What is CPU?
150.
Explain What is meant by Maskable interrupts?
151.
Explain Where does the Real mode on the CPU come from?
152.
Explain What are the various segment registers in 8086?
153.
What is Non-Maskable interrupts?
154.
Explain What are the different functional units in 8086?
155.
What is the Celeron processor?
156.
What is clock speed?
157.
What is the Pentium processor?
158.
Explain Program counter?
159.
Explain What happens when HLT instruction is executed in processor?
160.
Explain What are the various registers in 8085?
161.
What is 1st / 2nd / 3rd / 4th generation processor?
162.
Explain the processor lines of two major manufacturer?
163.
Explain the Maximum clock frequency in 8086?
164.
What is Virtual Memory in Computer?
165.
Explain How many types of memory in computer architecture?
166.
Explain What are the different hazards? How do we avoid them?
167.
Instead of just 5-8 pipe stages why not have, say, a pipeline with 50 pipe stages?
168.
Explain The CPU is busy but you want to stop and do some other task. How do you do it?
169.
Convert 65(Hex) to the Binary?
170.
How do we handle precise exceptions or interrupts?
171.
Explain the difference between interrupt service routine and subroutine?
172.
Can you explain what are the basic components in a Microprocessor?
173.
What is Static and Register variables?
174.
Explain MESI?
175.
Explain ACBF(Hex) divided by 16?
176.
Explain a Snooping cache?
177.
Explain What are five stages in a DLX pipeline?
178.
What are the basic components in a Microprocessor?
179.
What is MESI?
180.
What are the different hazards? How do you avoid them?
181.
What is the pipelining?
182.
Cache Size is 64KB, Block size is 32B and the cache is Two-Way Set Associative. For a 32-bit physical address, give the division between Block Offset, Index and Tag.
183.
What is a Snooping cache?
184.
What is Cache Coherency?
185.
What is Virtual Memory?
186.
What are the five stages in a DLX pipeline?
187.
What is a cache?
188.
Convert 65(Hex) to Binary?
189.
Convert a number to its twos compliment and back?
190.
The CPU is busy but you want to stop and do some other task. How do you do it?
191.
What is the difference between interrupt service routine and subroutine?
192.
For a pipeline with "n" stages, whats the ideal throughput? What prevents us from achieving this ideal throughput?
193.
How do you handle precise exceptions or interrupts?
194.
Whats the difference between Write-Through and Write-Back Caches? Explain advantages and disadvantages of each?
195.
Explain What is Virtual Memory?
196.
Cache Size is 64KB, Block size is 32B and the cache is Two-Way Set Associative. For a 32-bit physical address, give the division between Block Offset, Index and Tag.
197.
What is the difference between Write-Through and Write-Back Caches? Explain advantages and disadvantages of each?
198.
Explain What is a cache?
199.
What are Branch Prediction and Branch Target Buffers?
200.
Explain What are the different hazards? How do you avoid them?
201.
Explain What are the five stages in a DLX pipeline?
202.
For a pipeline with n stages, what is the ideal throughput? What prevents us from achieving this ideal throughput?
203.
Convert 65(Hex) to Binary?
204.
What is ACBF(Hex) divided by 16?
205.
What are the components in a Microprocessor?
206.
Explain What is MESI?
207.
Convert a number to its two?s compliment and back?
208.
6dB pad introduces how much attenuation?
209.
How to check the Mobile Battery charge status?
210.
What is the exactly meaning of manual testing?
211.
What is the Buffer size of transmission buffer or rectiption buffer in TM,UM and AM of RLC?
212.
Explain negative test cases for testing mobile phones?
213.
What is the difference between TDMA and FDMA?
214.
What will be the common test case for SMS and Mp3 player applications?
215.
How many memory locations can be addressed by a microprocessor with 14 address lines?
216.
Which type of architecture 8085 has?
217.
How do you make a memory card of mobile phone?
218.
Why do I not see the battery and capacitor combination for power backup?
219.
When recording infrasound waves or microwaves how do they differ from one another? What is the best way to read them?
220.
How can we prove that radio waves are sine waves? What makes them sine?
221.
Is it possible to reverse the order of a Variable Frequency Drive? Ex: I want to be able to create 120v power from a variable speed engine, with at least 6kw of power.
222.
Why does charging batteries take lengthy periods? What can be done to quicken the speed?
223.
What do mean by "flow of electron"?
224.
What are encoder and the decoder? What are the uses of these two devices? Also, write about how it works with circuit diagram.
225.
Do you have any ideas how to make a ping-pong ball launcher that reloads automatic and shoots automatically?
226.
Is it possible to build an AC or DC variable-speed generator with a variable field current, controlled by a signal from a torque sensor connected to the shaft of the generator (i.e., net torque = 0)?
227.
What is the significance of "4-20 mA" signal in hart protocol?
228.
The current through a resistor of 50 ohms in an AC circuit at t = 0.008 s is 65% of the peak value. The smallest possible frequency of the generator delivering the current is
229.
What is the difference between Photodiode and Solar cell?
230.
Can you explain electricity at atom level and if possible show some diagrams please
231.
How can the electromagnetic can travel in air and not lose any information contained in them?
232.
How is the transmission of a signal in a computer over x number of clock cycles translated into binary?
233.
Can we calculate the resistor if it is installed in circuit board?
234.
What is the name of the law for the storage and use of data in the UK?
235.
What is the best way to prevent a computer virus from entering your computer?
236.
What does RSI stand for?
237.
Health and safety is important when working with computers, which of the following will help to prevent injuries?
238.
Which of the following systems will help to improve communications within the company?
239.
Which is a use of e-commerce on the internet?
240.
Which of the following would you use to find information on the internet?
241.
In the home, which of the following would you use the internet for?
242.
Which is the MAIN advantage of using a network system in the office?
243.
Which of the following software manages the files and folders on your computers hard disk drive?
244.
Which software application would you use to create a report?
245.
Which of the following is NOT an input device?
246.
What does GUI stand for?
247.
Some of ECDL sample questions on Basic Concepts of Information Technology:
248.
Explain What are the three main types of connection used by Bluetooth?
249.
What are different functional units in 8086?
250.
What is the main difference between 8086 and 8088?
251.
Give us an examples for Micro controller?
252.
What is the difference between L1 and L2 cache?
253.
What is the maximum hard drive size for FAT16-based Windows system?
254.
Explain Which microprocessor accepts the program written for 8086 without any changes?
255.
What is the basic difference between 8085 and 8086?
256.
Explain the speed and device maximum specs for Firewire?
257.
What is Hard Drive (HD)?
258.
Explain SIM and RIM instructions?
259.
Which Logic calculations are done in which type of registers?
260.
Explain and Give example for Non-Maskable interrupts?
261.
Explain Which is the tool used to connect the user and the computer?
262.
Explain If you are getting in disc boot error. At initial stage what you need 2 check. Please detail in steps?
263.
What is MBR located on the disk?
264.
Explain How many logical drives is it possible to fit onto a physical disk?
265.
Explain Which Segment is used to store interrupt and subroutine return address registers?
266.
Explain what is meant by cross-compiler?
267.
What is testing? What is unit testing, integration testing, etc?
268.
What is waterfall model, prototype model?
269.
In C++, what is a constructor, destructor?
270.
Can recursive programs be written in C++, Write a recursive program to calculate factorial in C++?
271.
What is binary search, traversal, hashing?
272.
What is a kernel, shell?
273.
Is DOS a real time OS?
274.
Name some real time OSs?
275.
What is a real time system?
276.
Is RISC always fast?
277.
Explain Difference between RISC and CISC?
278.
Write a code to count the no. of 1s in a binary representation of a number?
279.
Explain Memory taken for char *, int * etc.?
280.
How does the browser know to go to a certain IP address when you enter a domain like questions-interviews.com?
281.
What is a Turing machine?
282.
Draw a Transmission Gate-based D-Latch?
283.
Suppose you have a combinational circuit between two registers driven by a clock. What will you do if the delay of the combinational circuit is greater than your clock signal?
284.
How do you detect a sequence of "1101" arriving serially from a signal line?
285.
Give the truth table for a Half Adder. Give a gate level implementation of the same.
286.
Design a divide-by-3 sequential circuit with 50% duty circle.
287.
Give two ways of converting a two input NAND gate to an inverter.
288.
How do you detect if two 8-bit signals are same?
289.
Give a circuit to divide frequency of clock cycle by two?
290.
What are set up time & hold time constraints? What do they signify? Which one is critical for estimating maximum clock frequency of a circuit?
291.
What are the different Adder circuits you studied?
292.
What is a Microprocessor?
293.
What are the flags in 8086?
294.
Why crystal is a preferred clock source?
295.
In 8085 which is called as High order / Low order Register?
296.
What is Tri-state logic?
297.
What happens when HLT instruction is executed in processor?
298.
Which Stack is used in 8085?
299.
What is Program counter?
300.
What are the various registers in 8085?
301.
What is 1st / 2nd / 3rd / 4th generation processor?
302.
Name the processor lines of two major manufacturer?
303.
What's the speed and device maximum specs for Firewire?
304.
Where does the CPU Enhanced mode originate from?
305.
How many bit combinations are there in a byte?
306.
Have you studied buses? What types?
307.
What is the Maximum clock frequency in 8086?
308.
What is meant by Maskable interrupts?
309.
What is Non-Maskable interrupts?
310.
What are the different functional units in 8086?
311.
What are the various segment registers in 8086?
312.
What does the EU do?
313.
Which Stack is used in 8086? k is used in 8086?
314.
What are the major flags in 8086?
315.
What is SIM and RIM instructions?
316.
Explain How to clear Computer Motherboard CMOS password?
317.
Explain What are Motherboard Components?
318.
why we know that this motherboard is correct on this condition that computer is no display?
319.
Explain Examples for 8 / 16 / 32 bit Microprocessor?
320.
What is cache memory on Motherboard?
321.
Explain the difference between RAM and ROM?
322.
Design a 2-bit magnitude comparator and write its RTL description also?
323.
Explain a Microprocessor?
324.
What is Computer motherboard?
325.
Explain the difference between primary and secondary storage device?
326.
What are the blocking and nonblocking assignments in Verilog and which is preferred in Sequential circuits?
327.
Write an RTL Description for D latch and D flip flop?
328.
Design a 2-bit magnitude comparator and write itsRTL description also?
329.
It was calculated that 75 men could complete a piece of work in 20 days. When work was scheduled to commence, it was found necessary to send 25 men to another project. How much longer will it take to complete the work?
330.
Can ROM be used as stack?
331.
What is stack?
332.
What is flag?
333.
Which processor structure is pipelined?
334.
Explain compiler?
335.
Differentiate between RAM and ROM?
336.
Which transistor is used in each cell of EPROM?
337.
What is called Scratch pad of computer?
338.
What is cache memory?
339.
What is interrupt?
340.
Difference between static and dynamic RAM?
341.
What is difference between primary & secondary storage device?
342.
What are the static and dynamic hazards in logic circuits?
343.
What is meant by LATCH?
344.
What is the difference between microprocessor and microcontroller?
345.
What is the disadvantage of microprocessor?
346.
Is the data bus is Bi-directional?
347.
Is the address bus unidirectional?
348.
What does microprocessor speed depend on?
349.
Define HCMOS?
350.
What is 1st / 2nd / 3rd / 4th generation processor?
351.
Why 8085 processor is called an 8 bit processor?
352.
Give examples for 8 / 16 / 32 bit Microprocessor?
353.
What are level-triggering interrupt?
354.
What is HCMOS?
355.
Explain Is the address bus unidirectional?
356.
What is NV-RAM?
357.
Explain What is the difference between primary and secondary storage device?
358.
Explain What does microprocessor speed depend on?
359.
Explain Why does microprocessor contain ROM chips?
360.
Explain What is the disadvantage of microprocessor?
361.
Explain What is the difference between microprocessor and microcontroller?
362.
Design a FSM for vending machine now?
363.
Explain Difference between static and dynamic RAM?