1-An address
used by programmers in a system supporting virtual memory concept is called virtual address and the set of such
addresses are called address space.
2-The method
for updating main memory as soon as word is removed fromCache is
called- write-back
3-A control
character is sent at the beginning as well as at the end of each block in the synchronous-transmission
in order to-Supply information needed to separate the incoming bits into
individual character.
4-In non-vectored interrupt, the address of interrupt service routine is -Assigned
to a fixed memory location.
5-Divide
overflow is generated when-Sign of the dividend is same as that of divisor.
6-Which method
is used for resolving data dependency conflict by compiler Itself-Delayed
load.
7-Stack
overflow causes-Internal interrupt.
8-Arithmetic
shift left operation-Produces the same result as obtained with logical shift
left operation. For Example-
9-Zero address
instruction format is used for-Stack-organized architecture.
10-Address
symbol table is generated by the-assembler.
11-The
negative numbers in the binary system can be represented by-2's complement
13-ABCD -
seven segment decoder / driver in connected to an LED display.
Which segments
are illuminated for the input code DCBA = 0001. A)b, c
14-How many
flip-flops are required to produce a divide-by-32 device? 5
15-The content
of a 4-bit register is initially 1101. The register is shifted 2 times to the right with
the serial input being 1011101. What is the
content of the register after each shift?- 1110, 0111
16-How many
different addresses are required by the memory that contain 16K words?- 16,384
17-What is the
bit storage capacity of a ROM with a 512' 4-organization?- 2048
18-DMA
interface unit eliminates the need to use CPU registers to transfer data From-Memory to
I/O units
19-How many
128 x 8 RAM chips are needed to provide a memory capacity of 2048 bytes?-16
20-Which of
the following is a self complementing code?-8421
21-Which gate
can be used as anti-coincidence detector?-XOR
22-Which of
the following technology can give high speed RAM?- ECL
23-In 8085
microprocessor how many I/O devices can be interfaced in I/O mapped I/O
technique?- 256 input devices & 256 output devices.
24-After
reset, CPU begins execution of instruction from memory address-0000H
25-Which is
true for a typical RISC architecture?- Micro programmed control unit.
26-When an
instruction is read from the memory, it is called-Fetch cycle
27-Which
activity does not take place during execution cycle?- Branch address is
calculated & Branching conditions are checked.
28-A circuit
in which connections to both AND and OR arrays can be programmed is
called-RAM
29-If a
register containing data (11001100)2 is subjected to arithmetic shift left operation,
then the content of the register after 'ashl' shall be-(10011000)2
30-Which logic
is known as universal logic? NAND logic.
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