PPSC Computer Science Full Book test With Answers

PPSC Computer Science Full Book test

Sr. # Questions Answers Choice
1 ______ stores the instruction currently being executed. Instruction register Current register Both a and b None
2 _________ causes the address of the next microprocessor to be obtained from the memory. CRJA ROM MAP HLT
3 _____ is the condiction CD IR Both a and b None
4 Which are the flags of status register. Over flow flag carry flag Half carry flag All of these
5 Causing a flag to became 0 is called. Clearing a flag Case a flag Both a and b None
6 LM stand for Least MAR Load MAR Least MRA Load MRA
7 ED stand for Enable MRD Enable MDR Both a and b None
8 LA stand for Load accumulator Least accumulator Last accumulator None
9 Single address computer instruction has two parts. The operation code The operand A and b None
10 How many parts of single address computer instruction. 1 2 3 4
11 How many bit of instruction on our simple computer consist of one 2-bit 6-bit 12-bit None
12 The act of acquiring an instruction is referred as the ____ the instruction Fetching Fetch cycle Botha a and b None
13 SP stand for Status pointer Stack pointer A and B None
14 IR stand for Intel register In computer register Index register Instruction register
15 PC stand for Program counter Points counter Paragraph counter Paint counter
16 Name of typical dedicated regtister. PC IR SP All these
17 How many parts of dedicated register. 2 4 5 6
18 Which register is a temporary storage location. General purpose register Dedicated register A and B None
19 There are primarily two types of register General purpose register Dedicated register a and b None
20 How many types of primary register. 1 2 3 4
21 Accumulator based microprocessor example are. Intel 8085 Motorola 6809 A and B None
22 In microprocessor one of the operands holds a special register called. Calculator Dedicated Accumulator None
23 How many types of classification of processor based on register section. 1 2 3 4
24 What is the store by register. Data Operands Memory None
25 The register section is related to ____________ of the computer. Processing ALU Main memory None
26 Which is the microprocessor comprises. Register section One or more ALU Control unit All of these
27 How many types of microprocessor comprieses. 3 6 4 9
28 In which form CPU provide output Computer signals Digital signals Metal signals None
29 MOS stand for Metal oxide semiconductor Memory oxide semiconductor Metal oxide select None
30 Which technology using the microprocessor is fabricated on single chip POS MOS ALU ABM
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