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০০। 'Burst refresh' in DRAM is also called
- ক) Concentrated refresh
- খ) Distributed refresh
- গ) Hidden refresh
- ঘ) None of the above
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০১। 'Rotate instruction' in microprocessor belongs to
- ক) data transfer group
- খ) arithmetic group
- গ) logic group
- ঘ) branch group
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০২। 'WRITE' is a
- ক) Word processor
- খ) Line editor
- গ) Text editor
- ঘ) Column editor
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০৩। - 56 is not a valid real constant in Fortran.
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০৪। 6 bytes means
- ক) 6 bits
- খ) 24 bits
- গ) 48 bits
- ঘ) 96 bits
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০৫। 8 bit data can have 256 numbers ranging from 00000000 to 111 111 11.
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০৬। 8085 data bus has 8 lines and is bidirectional.
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০৭। 8085 has 6 sign flags.
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০৮। 8085 needs + 10 V supply.
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০৯। 8255 A has three 8 bit ports A, B, C for peripheral data transfer. For programming 8255 A, these ports are grouped as
- ক) Port A with Port B
- খ) Port A with 4 most significant ports of C, port B with 4 least significant ports of C
- গ) Port A with Port C
- ঘ) none of the above
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১০। 8255 A is a
- ক) programmable peripheral interface
- খ) I/O device
- গ) memory chip
- ঘ) none of the above
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১১। A 256 x 4 EPROM has
- ক) 8 address pins and 4 data pins
- খ) 8 address pins and 8 data pins
- গ) 4 address pins and 8 data pins
- ঘ) 4 address pins and 4 data pins
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১২। A 37 bit mantissa has an accuracy of
- ক) 6 decimal places
- খ) 8 decimal places
- গ) 10 decimal places
- ঘ) 11 decimal places
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১৩। A blank EPROM has
- ক) all bits set to logical 0
- খ) all bits set to logical 1
- গ) half the total number of bits set to 0 and remaining half to logical 1
- ঘ) either (a) or (b)
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১৪। A colour monitor usign 16 bits at a resolution of 600 x 400 pixels needs a memory of
- ক) 240000 B
- খ) 9600 B
- গ) 6400 B
- ঘ) 480000 B
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১৫। A compiler converts a high level computer program into machine language program.
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১৬। A computer memory is an ordered sequence of storage cells.
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১৭। A computer program is used to read M and print the sum 2 + 4 + 6 + 8 +.........+ 2M. If M = 9 , the print out will show the number
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১৮। A computer program is used to read N and compute N !. IF N = 6, the result will be
- ক) 6
- খ) 12
- গ) 720
- ঘ) 1040
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১৯। A computer program is used to read N and print the sum 12 + 22 + 32 +.....+ N2. If N = 10, the print out will show the number
- ক) 100
- খ) 10
- গ) 385
- ঘ) 285