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This set of MCQs helps students to learn about Basic Peripherals and their Interfacing which means various components or devices those are connected to CPU. Actually these are input output devices. Thus, it sometimes calls as I/O devices and an interface which is a concept that refers to a point of interaction between objects or components and is applicable at the level of both hardware and software.
If at a time Ao and BHE(active low) both are zero then, the chip(s) selected will be
The input and output operations are respectively similar to the operations,
The operation, IOWR (active low) performs
The latch or IC 74LS373 acts as
The semiconductor memories are organised as __________ dimension(s) of array of memory locations.
One dimensional
Two dimensional
Three dimensional
None
If a location is selected, then all the bits in it are accessible using a group of conductors called,
Control bus
Address bus
Data bus
Either address bus or data bus
To address a memory location out of N memory locations, the number of address lines required is,
log N (to the base 2)
log N (to the base 10)
log N (to the base e)
log (2N) (to the base e)
If the microprocessor has 10 address lines, then the number of memory locations it is able to address is,
512
1024
2048
none
In static memory, the upper 8-bit bank of an available 16-bit memory chip is called,
Upper address memory bank
Even address memory bank
Static upper memory
Odd address memory bank
In static memory, the lower 8-bit bank of an available 16-bit memory chip is called
Lower address memory bank
Even address memory bank
Static lower memory bank
Odd address memory bank
In most of the cases, the method used for decoding that may be used to minimise the required hardware is,
Absolute decoding
Non-linear decoding
linear decoding
None
To obtain 16-bit data bus width, the two 4K*8 chips of RAM and ROM are arranged in,
Parallel
Serial
Both serial and parallel
Neither serial nor parallel
If (address line) Ao=0 then, the status of address and memory are,
Address is even and memory is in ROM
Address is odd and memory is in ROM
Address is even and memory is in RAM
Address is odd and memory is in RAM
The device that enables the microprocessor to read data from the external devices is,
Printer
Joystick
Display
Reader
The example of output device is,
CRT display
7-segment display
Printer
All of the mentioned
