COA - digital computers, logic gates

From the following choices, which is used translate the user specified language into machine language??

• Encoder

• Decoder

DMA stands for _______

• Distant Memory Access

• Direct Memory Access

• Direct Main Access

• None

________ is a heart of computer.

• Cpu

• Memory

• Input devices

• Output devices

________ memory is used to give instructions to computer.

• Program memory

• Data memory

________ takes single input and have multiple lines for output

• Multiplexer (MUX)

• Demultiplexer (DEMUX)

Inversion operation done by ____

• Not gate

• And gate

• Or gate

NAND gate is a combination of ______

• AND , NOT

• OR , NOT

• AND , OR

In negative logic, Low = _____

• 1

• 0

In positive logic High = ______

• 0

• 1

State True or False:

ALU stands for Arithmetic and Local unit

• True

• False