If m is a power of 2, the number of select lines required for an m-input mux is: a. m b. 2^m c. log2 (m) d. 2*m

If m is a power of 2, the number of select lines required for an m-input mux is:
a. m
b. 2^m
c. log2 (m)
d. 2*m
by

1 Answer

Answer :

c. log2 (m)
by

Related questions

A structure that stores a number of bits taken "together as a unit" is a a. gate b. mux c. decoder d. register

Description : A structure that stores a number of bits taken "together as a unit" is a a. gate b. mux c. decoder d. register

Last Answer : d. register

Of the following circuits, the one which involves storage is a. RS Latch b. mux c. nand d. decoder

Description : Of the following circuits, the one which involves storage is a. RS Latch b. mux c. nand d. decoder

Last Answer : a. RS Latch

8096 has ___ general purpose I/O ports, Port 2 includes ______ of the following i) two quasi-bidirectional I/O lines ii) two output lines iii) four input lines iv) open drain outputs a) 4, i, iv b) 6, ii, iii c) 4, i,ii,iii d) 6, i, ii, iv

Description : 8096 has ___ general purpose I/O ports, Port 2 includes ______ of the following i) two quasi-bidirectional I/O lines ii) two output lines iii) four input lines iv) open drain outputs a) 4, i, iv b) 6, ii, iii c) 4, i,ii,iii d) 6, i, ii, iv

Last Answer : c) 4, i,ii,iii

In 8279 Strobed input mode, the control line goes low. The data on return lines is strobed in the ____. a) FIFO byte by byte b) FILO byte by byte c) LIFO byte by byte d) LILO byte by byte.

Description : In 8279 Strobed input mode, the control line goes low. The data on return lines is strobed in the ____. a) FIFO byte by byte b) FILO byte by byte c) LIFO byte by byte d) LILO byte by byte.

Last Answer : a) FIFO byte by byte

8096 has ___ general purpose I/O ports, Port 2 includes ______ of the following i) two quasi-bidirectional I/O lines ii) two output lines iii) four input lines iv) open drain outputs a) 4, i, iv b) 6, ii, iii c) 4, i,ii,iii d) 6, i, ii, iv

Description : 8096 has ___ general purpose I/O ports, Port 2 includes ______ of the following i) two quasi-bidirectional I/O lines ii) two output lines iii) four input lines iv) open drain outputs a) 4, i, iv b) 6, ii, iii c) 4, i,ii,iii d) 6, i, ii, iv

Last Answer : c) 4, i,ii,iii

Which statement is wrong according to linear decoding : a. Address map is not contiguous. b. Confects occur if two of the select lines become active at the same time c. If all unused address lines are not used as chip selectors then these unused lines become don’t cares d. None of these

Description : Which statement is wrong according to linear decoding : a. Address map is not contiguous. b. Confects occur if two of the select lines become active at the same time c. If all unused address lines are not used as chip selectors then these unused lines become don’t cares d. None of these

Last Answer : d. None of these

The minimum number of transistors required to implement a two input AND gate is a. 2 b. 4 c. 6 d. 8

Description : The minimum number of transistors required to implement a two input AND gate is a. 2 b. 4 c. 6 d. 8

Last Answer : c. 6

five bits of OPR select one of the operation inthe __ in control register. a. CPU b. RISC ec ALU d. MUX

Description : five bits of OPR select one of the operation inthe __ in control register. a. CPU b. RISC ec ALU d. MUX

Last Answer : ec ALU

.In an 8085 based system, the maximum number of input output devices can be connectedusing I/0 mapped I/O method isa) 64 b) 512 c) 256 d) 65536

Description : .In an 8085 based system, the maximum number of input output devices can be connectedusing I/0 mapped I/O method isa) 64 b) 512 c) 256 d) 65536

Last Answer : b) 512

When the write enable input is not asserted, the gated D latch ______ its output. a. can not change b. clears c. sets d. complements

Description : When the write enable input is not asserted, the gated D latch ______ its output. a. can not change b. clears c. sets d. complements

Last Answer : a. can not change

To put the 8085 microprocessor in the wait state(i) lower the-HOLD input (ii) lower the READY input (iii) raise the HOLD input(iv) raise the READY input

Description : To put the 8085 microprocessor in the wait state(i) lower the-HOLD input (ii) lower the READY input (iii) raise the HOLD input(iv) raise the READY input

Last Answer : (ii) lower the READY input

A computer programmer a. Dies all the thinking for a compute b. Can enter input data quickly c. Can operate all types of computer equipment d. Can draw only flowchart

Description : A computer programmer a. Dies all the thinking for a compute b. Can enter input data quickly c. Can operate all types of computer equipment d. Can draw only flowchart

Last Answer : a. Dies all the thinking for a compute

computer operators a. writes computer programs for specific problems b. operate the device which input and output data from the computer c. normally require a college degree in computer science d. all of the above

Description : computer operators a. writes computer programs for specific problems b. operate the device which input and output data from the computer c. normally require a college degree in computer science d. all of the above

Last Answer : b. operate the device which input and output data from the computer

Which one of the following input device is user-programmable? a. Dumb terminal b. Smart terminal c. VDT d. Intelligent terminal

Description : Which one of the following input device is user-programmable? a. Dumb terminal b. Smart terminal c. VDT d. Intelligent terminal

Last Answer : d. Intelligent terminal

What type of device is computer keyboard? a. Memory b. Output c. Storage d. Input

Description : What type of device is computer keyboard? a. Memory b. Output c. Storage d. Input

Last Answer : d. Input

An input /output device at which data enters or leaves a computer system is a. Keyboard b. Terminal c. Printer d. Plotter

Description : An input /output device at which data enters or leaves a computer system is a. Keyboard b. Terminal c. Printer d. Plotter

Last Answer : b. Terminal

Which most popular input device is used today for interactive processing and for the one line entry of data for batch processing? a. Mouse b. Magnetic disk c. Visual display terminal d. Card punch

Description : Which most popular input device is used today for interactive processing and for the one line entry of data for batch processing? a. Mouse b. Magnetic disk c. Visual display terminal d. Card punch

Last Answer : a. Mouse

Magnetic tape can serve as a. Secondary storage media b. Output media c. Input media d. All of the above

Description : Magnetic tape can serve as a. Secondary storage media b. Output media c. Input media d. All of the above

Last Answer : d. All of the above

A computer consists of a. A central processing unit b. A memory c. Input and output unit d. All of the above

Description : A computer consists of a. A central processing unit b. A memory c. Input and output unit d. All of the above

Last Answer : d. All of the above

Which is considered a direct entry input device? a. Optical scanner b. Mouse and digitizer c. Light pen d. All of the above

Description : Which is considered a direct entry input device? a. Optical scanner b. Mouse and digitizer c. Light pen d. All of the above

Last Answer : d. All of the above

The central processing unit (CPU) consists of a. Input, output and processing b. Control unit, primary storage, and secondary storage c. Control unit, arithmetic-logic unit and primary storage d. Control unit, processing, and primary storage

Description : The central processing unit (CPU) consists of a. Input, output and processing b. Control unit, primary storage, and secondary storage c. Control unit, arithmetic-logic unit and primary storage d. Control unit, processing, and primary storage

Last Answer : c. Control unit, arithmetic-logic unit and primary storage

Which of the following is not an input device? a. OCR b. Optical scanners c. Voice recognition device d. COM (Computer Output to Microfilm)

Description : Which of the following is not an input device? a. OCR b. Optical scanners c. Voice recognition device d. COM (Computer Output to Microfilm)

Last Answer : d. COM (Computer Output to Microfilm)

A/n …. Device is any device that provides information, which is sent to the CPU a. Input b. Output c. CPU d. Memory

Description : A/n …. Device is any device that provides information, which is sent to the CPU a. Input b. Output c. CPU d. Memory

Last Answer : a. Input

perforated paper used as input of output media is known as a. paper tapes b. magnetic tape c. punched papers tape d. card punch

Description : perforated paper used as input of output media is known as a. paper tapes b. magnetic tape c. punched papers tape d. card punch

Last Answer : a. paper tapes

Regarding a VDU, Which statement is more correct? a. It is an output device b. It is an input device c. It is a peripheral device d. It is hardware item

Description : Regarding a VDU, Which statement is more correct? a. It is an output device b. It is an input device c. It is a peripheral device d. It is hardware item

Last Answer : c. It is a peripheral device

In analog computer a. Input is first converted to digital form b. Input is never converted to digital form c. Output is displayed in digital form d. All of above

Description : In analog computer a. Input is first converted to digital form b. Input is never converted to digital form c. Output is displayed in digital form d. All of above

Last Answer : b. Input is never converted to digital form

A modern electronic computer is a machine that is meant for a. Doing quick mathematical calculations b. Input, storage, manipulation and outputting of data c. Electronic data processing d. Performing repetitive tasks accurately

Description : A modern electronic computer is a machine that is meant for a. Doing quick mathematical calculations b. Input, storage, manipulation and outputting of data c. Electronic data processing d. Performing repetitive tasks accurately

Last Answer : b. Input, storage, manipulation and outputting of data

A computer programmer a. Does all the thinking for a computer b. Can enter input data quickly c. Can operate all types of computer equipments d. Can draw only flowchart

Description : A computer programmer a. Does all the thinking for a computer b. Can enter input data quickly c. Can operate all types of computer equipments d. Can draw only flowchart

Last Answer : a. Does all the thinking for a computer

Central Processing Unit is combination of a. Control and storage b. Control and output unit c. Arithmetic logic and input unit d. Arithmetic logic and control unit

Description : Central Processing Unit is combination of a. Control and storage b. Control and output unit c. Arithmetic logic and input unit d. Arithmetic logic and control unit

Last Answer : d. Arithmetic logic and control unit

The microcomputer system by using the ____device interface: a. Input b. Output c. Both A and B d. None of these

Description : The microcomputer system by using the ____device interface: a. Input b. Output c. Both A and B d. None of these

Last Answer : c. Both A and B

Which statement is false about WR signal: a. WR signal controls the input buffer b. The bar over WR means that this is an active low signal c. The bar over WR means that this is an active high signal d. If WR is 0 then the input data reaches the latch input

Description : Which statement is false about WR signal: a. WR signal controls the input buffer b. The bar over WR means that this is an active low signal c. The bar over WR means that this is an active high signal d. If WR is 0 then the input data reaches the latch input

Last Answer : c. The bar over WR means that this is an active high signal

When memory write or I/O read are active data is from the processor: a. Input b. Output c. Processor d. None of these

Description : When memory write or I/O read are active data is from the processor: a. Input b. Output c. Processor d. None of these

Last Answer : b. Output

When memory read or I/O read are active data is to the processor : a. Input b. Output c. Processor d. None of these

Description : When memory read or I/O read are active data is to the processor : a. Input b. Output c. Processor d. None of these

Last Answer : a. Input

______ input is available, so that another coprocessor can be connected and function in _________ with the 8087. . a) RQ/GT0, parallel b) RQ/GT1, parallel c) QS1 & QS0, parallel d) S0 & S1, parallel.

Description : ______ input is available, so that another coprocessor can be connected and function in _________ with the 8087. . a) RQ/GT0, parallel b) RQ/GT1, parallel c) QS1 & QS0, parallel d) S0 & S1, parallel.

Last Answer : a) RQ/GT0, parallel

Which of the following statements on DRAM are correct? i) Page mode read operation is faster than RAS read. ii) RAS input remains active during column address strobe. iii) The row and column addresses are strobed into the internal buffers using RAS and CAS inputs respectively. a) i & iii b) i & ii c) all d) iii

Description : Which of the following statements on DRAM are correct? i) Page mode read operation is faster than RAS read. ii) RAS input remains active during column address strobe. iii) The row and column addresses are strobed into the ... RAS and CAS inputs respectively. a) i & iii b) i & ii c) all d) iii

Last Answer : d) iii

The number log2 7 is : -Maths 9th

Description : The number log2 7 is : -Maths 9th

Last Answer : (c) an irrational numberLet us assume log27 be a rational number. Then, log27 = \(rac{p}{q}\), where p,q ∈ I and q ≠ 0 ⇒ \(2^{rac{p}{q}}\) = 7 ⇒ 2p = 7q This is not true as 2 is even and 7 is odd.∴ Hence our assumption that log27 is a rational number is wrong. ∴ log27 is an irrational number.

The number of meaningful solutions of log4(x – 1) = log2 (x – 3) is -Maths 9th

Description : The number of meaningful solutions of log4(x – 1) = log2 (x – 3) is -Maths 9th

Last Answer : (b) 1log4(x - 1) = log2(x - 3) ⇒ log22 (x − 1) = log2(x - 3)⇒ \(rac{1}{2}\) log2 (x-1) = log2 (x- 3) ⇒ log2 (x-1) = 2 log2 (x- 3)\(\big[\)Using logam (bn) = \(rac{n}{m} ... x = 2 or 5 Neglecting x = 2 as log2(x - 3) is defined when x > 2.⇒ There is only one meaningful solution of the given equation.

The number of solution of log4 (x – 1) = log2 (x – 3) is : -Maths 9th

Description : The number of solution of log4 (x – 1) = log2 (x – 3) is : -Maths 9th

Last Answer : answer:

How many address lines in a 4096 x 8 EPROM CHIP?

Description : How many address lines in a 4096 x 8 EPROM CHIP?

Last Answer : 12 address lines.

Mention the purpose of SID and SOD lines

Description : Mention the purpose of SID and SOD lines

Last Answer : SID (Serial input data line): It is an input line through which the microprocessor accepts serial data. SOD (Serial output data line): It is an output line through which the microprocessor sends output serial data.

How many address lines are needed to address each memory locations in a 2048 x 4 memory chip? a. 10 b. 11 c. 8 d. 12

Description : How many address lines are needed to address each memory locations in a 2048 x 4 memory chip? a. 10 b. 11 c. 8 d. 12

Last Answer : b. 11

How many address lines are needed to address each memory location in a 2048 x 4 memory chip? a. 10 b. 11 c. 8 d. 12

Description : How many address lines are needed to address each memory location in a 2048 x 4 memory chip? a. 10 b. 11 c. 8 d. 12

Last Answer : b. 11

Different components on the motherboard of a PC processor unit are linked together by sets or parallel electrical conducting lines. What are these lines called? a. Conductors b. Buses c. Connectors d. Connectively

Description : Different components on the motherboard of a PC processor unit are linked together by sets or parallel electrical conducting lines. What are these lines called? a. Conductors b. Buses c. Connectors d. Connectively

Last Answer : b. Buses

Which of the following does not affect the resolution of a video display image? a. Bandwidth b. Raster scan rage c. Vertical and horizontal lines of resolution d. Screen size

Description : Which of the following does not affect the resolution of a video display image? a. Bandwidth b. Raster scan rage c. Vertical and horizontal lines of resolution d. Screen size

Last Answer : d. Screen size

how many address lines are needed to address each machine location in a 2048 x 4 memory chip? a. 10 b. 11 c. 8 d. 12

Description : how many address lines are needed to address each machine location in a 2048 x 4 memory chip? a. 10 b. 11 c. 8 d. 12

Last Answer : b. 11

Interfacing LCD with 89C51 _____ data lines are used along with the _____ signals. a) 6, RS, RW b) 5, RW, EN c) 8, RS, EN, RW d) 9, RS, EN, RW

Description : Interfacing LCD with 89C51 _____ data lines are used along with the _____ signals. a) 6, RS, RW b) 5, RW, EN c) 8, RS, EN, RW d) 9, RS, EN, RW

Last Answer : a) 6, RS, RW

In 8255, under the I/O mode of operation we have __ modes. Under which mode will have the following features i) A 5 bit control port is available. ii) Three I/O lines are available at Port C. a) 3, Mode2 b) 2, Mode 2 c) 4, Mode 3 d) 3, Mode 2

Description : In 8255, under the I/O mode of operation we have __ modes. Under which mode will have the following features i) A 5 bit control port is available. ii) Three I/O lines are available at Port C. a) 3, Mode2 b) 2, Mode 2 c) 4, Mode 3 d) 3, Mode 2

Last Answer : a) 3, Mode2

CS stands for: a. Cable select b. Chip select c. Control select d. Cable system

Description : CS stands for: a. Cable select b. Chip select c. Control select d. Cable system

Last Answer : b. Chip select

MOS stands for: a. Metal oxide semiconductor b. Memory oxide semiconductor c. Metal oxide select d. None of these

Description : MOS stands for: a. Metal oxide semiconductor b. Memory oxide semiconductor c. Metal oxide select d. None of these

Last Answer : a. Metal oxide semiconductor

In 8096, CCB bit 3 is ____. a) write strobe mode select b) address valid strobe select c) bus width select d) Internal read control mode

Description : In 8096, CCB bit 3 is ____. a) write strobe mode select b) address valid strobe select c) bus width select d) Internal read control mode

Last Answer : c) bus width select