PPSC Computer Science Full Book test With Answers

PPSC Computer Science Full Book test

Sr. # Questions Answers Choice
1 Which is not the control bus signal READ WRITE RESET None
2 Which bus transfer singles from the CPU to external device and others that carry singles from external device to the CPU. Control bus Data bus Address bus None
3 CPU can read and write data by using. Control bus Data Bus Address bus None
4 a 16 bit address bus can generate ________ address bus. 16 32 36 64
5 Which bus carry addresses System bus Address bus Control bus Data bus
6 Which Bus connects CPU and level 2 cache Rear side bus Front side bus Memory side bus None
7 The network of wires or electronic path ways on mother board back side. PCB BUS Both a and b None
8 The external system bus architecture is created using from ______ architecture. Pascal Dennis Ritchie Charles Babbage Von Neumann
9 Which is called super highway Processor Multiplexer Backbone bus None
10 ___________ a sub system that transfer data between computer components inside a computer or between computer. Chip Register Bus processor
11 MSD stand for Least significant digit Most significant digit Medium significant digit Low significant digit
12 The left side of any binary number is called. Least significant digit Most significant digit Medium significant digit Low significant digit
13 A nibble can be represented in the from of. Octal digit Decimal Hexa decimal None
14 The 16 bit register is separated into groups of 4 bit where each groups is called. BCD Nibble Half byte None
15 The CU is designed by using which techniques. HARD WIRED CONTROLS MICRO PROGRAMMIING NANO PROGRAMMING All of these
16 The data in the stack is called. Pushing data Pushed Pulling None
17 The structure of the stack is _______ type structure. First in last out Last in last out Both a and b None
18 Which is the important part of a combinational logic block Index register barrel shifter Both a and b None
19 How many bit stored by status register 1 bit 4 bit 6 bit 8 bit
20 SP stand for Stack pointer Stack POP Stack Push None
21 Which is the basic stack operation Push POP Both a and b None
22 Which point to the __________ of the stack TOP Start Mid None
23 The processor uses the stack to keep track of where the items are stored on it this by using the. Stack pointer register Queue pointer register Both a and b None
24 The sub program finish the return instruction recovers the return address from the. Queue Stack Program counter Pointer
25 The point where control returns after a subprogram is completed is known as the. Return address Main address Program address Current address
26 The area of memory with addresses near zero are called. High memory Mid memory Memory Low memory
27 Which is used to store critical pieces of data during subroutines and interrupts. Stack Queue Accumulator Data register
28 BCD stand for Binary coded decimal Binary coded decoded Both a and b None
29 The status register is also called the Condition code register Flag register a and b None
30 In which register instruction is decoded prepared and ultimately executed. Instruction register Current register Both a and b None
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