How many IRQs does a chain of USB devices require?

The length of a survey line was measured with a 20 m chain and was found to be equal to 1200 m. If the length again measured with 25 m chain it is 1212 m. On comparing the 20 m chain with the test gauge, it was found to be 1 decimeter too long. Find the actual length of 25 m chain used.

A

22.25 m

B

21.64 m

C

24.25 m

D

24. 88 m

When configuring is a network interface cards without jumpers or plug and play, what is used to set the IRQs?

A

DMA

B

CMOS

C

the OS

D

configuration software

E

None of the above

Microcontrollers are used in automatically controlled products and devices, such as automobile engine control systems, implantable medical devices, remote controls, office machines, appliances, power tools, toys and other embedded systems. By reducing the size and cost compared to a design that uses a separate microprocessor, memory, and input/output devices, microcontrollers make it economical to digitally control even more devices and processes. Mixed signal microcontrollers are common, integrating analog components needed to control non-digital electronic systems. What inference can be drawn from the above?

A

All automatically controlled products and devices have microcontrollers.

B

Microcontrollers save money.

C

Both option 1 and option 2

D

Neither option 1 nor option 2

Which one of the following is true with regard to a CPU having a single interrupt request line and single interrupt grant line? i) Neither vectored nor multiple interrupting devices is possible. ii) Vectored interrupts is not possible but multiple interrupting devices is possible. iii) Vectored interrupts is possible and multiple interrupting devices is not possible. iv) Both vectored and multiple interrupting devices are possible.

A

iii

B

i, iv

C

ii, iii

D

iii, iv

Schools (1) and (2) have the following facilities in their schools. What would be common among these schools? (1) Ceiling mounted projector and projection screen, Laptop connection cables - HDMI, VGA, Mini Display Port, DVD, Sound system, Touch screen Control system, Telephone. (2) Resident Computer with both Mac & Windows operating systems w/DVD-RW, Microphone (wireless hand-held and/or lavaliere), Document Camera, Stereo Sound, Wireless Presentation clicker/Mouse, USB extension cable for USB drives.

A

Students of both schools will have high achievement

B

Teachers of both the schools use technology very well

C

Both the schools have technology enhanced learning spaces

D

Learning in both the schools will be a combination of ‘Education + Entertainment’ (edutainment)

What is the full from of USB that we associate with a USB drive?

A

Universal Serial Bus

B

Unique Service Bus

C

Uniform Service Bus

D

Uniform Serial Bus

If "laptops" are called "chargers", "chargers" are called "private computer", "private computer" is called "USB", "USB" is called "pen drive" and "pen drive" is called "plug". What do we use to store songs?

A

Plug.

B

private computer

C

USB

D

pen drive

In the following question below some statements are given followed by some conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusions logically follows the given statements. Statements: Some dock is wire All wire is USB No USB is port Conclusion: I. No wire is port II. Some dock are not port

A

Only conclusion I follows

B

Either conclusion I or II follows

C

Only conclusion II follows

D

Both conclusions I and II follow

What is the full form of USB that we associate with a USB drive?

A