PPSC Computer Science Full Book test With Answers

PPSC Computer Science Full Book test

Sr. # Questions Answers Choice
1 DS stand for Data segment Direct segment Declare segment Divide segment
2 IP stand for. Instruction pointer Instruction purpose Instruction paints None
3 The four index register can be used for. Arithmetic operation Multipulation operation Subtraction operation All of these
4 Eight of the register are known as. General purpose register Pointer or index registers Segment registers All of theses
5 Which are the four categories of registers. General purpose register Pointer or index registers Segment registers All of these
6 Which are the part of architecture of 8086 The bus interface unit The execution unit Both a and b None
7 The register can be divided are. 3 4 5 6
8 EU stand for Execution unit Execute unit Exchange unit None
9 BIU stand for Bus interface unit Bess interface unit Both a and b None
10 The mode of DMA are Single transfer Transfer Repeated Sigel transfer All of these
11 The DMA controllers are specials hardware embedded into the chip in modern integrate processor that ____________ and _________ to the system. Data transfer Arbitrate access Both a and b None
12 The external device is connected to a pin called the__ pin on the processor chip. Interrupt Transfer Both None
13 The DMA controllers are special hardware embedded into the chip in modern integrate processor that __________ and ________ to the system. Data transfer Arbitrate access Both a and b None
14 The external device is connected to a pin called the_____ pin on the processor chip Interrupt Tranasfer Both a and b None
15 A ______ on this pin indicates a memory operation. Low High Medium None
16 The standard I/O is also called. isolated I/O Parallel I/O Both a and b None
17 How many ways fo transferring data between the microprocessor and a physical I/O device. 2 3 4 5
18 How bit microprocessor inexpensive a separate interface is provided with I/O device. 2 bit 4 bit 8 bit 32 bit
19 The microcomputer system by using the ___ device interface Input Out put Both a and b None
20 The CPU removes the __________ signal to complete the memory write operation. READ WRITE Both a and b None
21 The _______ place the data from a register onto the data bus. CPU ALU Both a and b None
22 the CPU Sends out a _______ signal to indicate that valid data is available on the data bus. READ WRITE Both a and b None
23 DMA Stand for Direct memory access Direct memory allocation Data memory access Data memory allocation
24 The lower red curvy arrow show that CPU places the address extracted from the memory location on the. Address bus System bus Control bus Data bus
25 The information on the data bus in transferred to the ______ register. MOC MDR VAM CPU
26 The information is transferred from the ________ and_______ specified register. MDR CPU Both a and b None
27 The upper red arrow show that CPU sends out the control signals _____ and ____ indicate the data is read from the memory. Memory request Read Both a and b None
28 Which are the READ operation can in simple steps. Address Data Control All these
29 MOC stand for Memory operation complex Micro operation complex Memory operation complete None
30 How many bit or MAR register 8 bit 16 bit 32 bit 64 bit
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