CEA 201 - Unit 1,2,3,4,5,6,7,8,9,10,11,12 Question Bank. Graded A+. VERIFIED

CEA 201 - Unit 1,2,3,4,5,6,7,8,9,10,11,12 Question Bank. Graded A+. VERIFIED T - -The operation of the digital computer is based on the storage and processing of binary data. (T/F) F - -Claude Shannon, a research assistant in the Electrical Engineering Department at M.I.T., proposed the basic principles of Boolean algebra. (T/F) T - -In the absence of parentheses, the AND operation takes precedence over the OR operation. (T/F) F - -Logical functions are implemented by the interconnection of decoders. (T/F) T - -The delay by the propagation time of signals through the gate is known as the gate delay. (T/F) T - -A combinational circuit consists of n binary inputs and m binary outputs. (T/F) T - -Any Boolean function can be implemented in electronic form as a network of gates. (T/F) F - -A Boolean function can be realized in the sum of products (SOP) form but not in the product of sums (POS) form. (T/F) T - -"Don't care" conditions are when certain combinations of values of variables never occur, and therefore the corresponding output never occurs. (T/F) T - -The value to be loaded into the program counter can come from a binary counter, the instruction register, or the output of the ALU. (T/F) T - -In general, a decoder has n inputs and 2^n outputs. (T/F) T - -Combinational circuits are often referred to as "memoryless" circuits because their output depends only on their current input and no history of prior inputs is retained. (T/F) F - -Binary addition is exactly the same as Boolean algebra. (T/F) T - -Events in the digital computer are synchronized to a clock pulse so that changes occur only when a clock pulse occurs. (T/F) T - -A register is a digital circuit used within the CPU to store one or more bits of data. (T/F) C - -The operand ________ yields true if and only if both of its operands are true. A. XOR B. OR C. AND D. NOT D - -The operation _________ yields true if either or both of its operands are true. A. NOT B. AND C. NAND D. OR B - -The unary operation _________ inverts the value of its operand. A. OR B. NOT C. NAND D. XOR A - -A _______ is an electronic circuit that produces an output signal that is a simple Boolean operation on its input signals. A. gate B. decoder C. counter D. flip-flop D - -Which of the following is a functionally complete set? A. AND, NOT B. NOR C. AND, OR, NOT D. all of the above B - -For more than four variables an alternative approach is a tabular technique referred to as the _________ method. A. DeMorgan B. Quine-McCluskey C. Karnaugh map D. Boole-Shannon A - -________ are used in digital circuits to control signal and data routing. A. Multiplexers B. Program counters C. Flip-flops D. Gates C - -________ is implemented with combinational circuits. A. Nano memory B. Random access memory C. Read only memory D. No memory D - -The ________ exists in one of two states and, in the absence of input, remains in that state. A. assert B. complex PLD C. decoder D. flip-flop A - -The ________ flip-flop has two inputs and all possible combinations of input values are valid. A. J-K B. D C. S-R D. clocked S-R B - -A _________ accepts and/or transfers information serially. A. S-R latch B. shift register C. FPGA D. parallel register C - -Counters can be designated as _________. A. asynchronous B. synchronous C. both asynchronous and synchronous D. neither asynchronous or synchronous A - -CPUs make use of _________ counters, in which all of the flip-flops of the counter change at the same time. A. synchronous B. asynchronous C. clocked S-R D. timed ripple A - -The _________ table provides the value of the next output when the inputs and the present output are known, which is exactly the information needed to design the counter or any sequential circuit. A. excitation B. Kenough C. J-K flip-flop D. FPGA B - -A _________ is a PLD featuring a general structure that allows very high logic capacity and offers more narrow logic resources and a higher ration of flip-flops to logic resources than do CPLDs. A. SPLD B. FPGA C. PAL D. PLA T - -One boundary where the computer designer and the computer programmer can view the same machine is the machine instruction set. (T/F) T - -The operation to be performed is specified by a binary code known as the operation code. (T/F) F - -The address of the next instruction to be fetched must be a real address, not a virtual address. (T/F) T - -It has become common practice to use a symbolic representation of machine instructions. (T/F) F - -A high-level language expresses operations in a basic form involving the movement of data to or from registers. (T/F) T - -One of the traditional ways of describing processor architecture is in terms of the number of addresses contained in each instruction. (T/F) F - -Memory references are faster than register references. (T/F) T - -The instruction set is the programmer's means of controlling the processor. (T/F) T - -Addresses are a form of data. (T/F) F - -Not all machine languages include numeric data types. (T/F) T - -ARM processors support data types of 8 (byte), 16 (halfword), and 32 (word) bits in length. (T/F) T - -Most machines provide the basic arithmetic operations of add, subtract, multiply, and divide. (T/F) T - -A branch can be either forward or backward. (T/F) F - -Procedures do not allow programming tasks to be subdivided into smaller units. (T/F) T - -The focus of MMX technology is multimedia programming. (T/F) B - -The ________ specifies the operation to be performed. A. source operand reference B. opcode C. next instruction reference D. processor register B - -A(n) _________ expresses operations in a concise algebraic form using variables. A. opcode B. high-level language C. machine language D. register C - -There must be ________ instructions for moving data between memory and the registers. A. branch B. logic C. memory D. I/O A - -________ instructions operate on the bits of a word as bits rather than as numbers, providing capabilities for processing any other type of data the user may wish to employ. A. Logic B. Arithmetic C. Memory D. Test D - -_________ instructions provide computational capabilities for processing number data. A. Boolean B. Logic C. Memory D. Arithmetic A - -_______ instructions are needed to transfer programs and data into memory and the results of computations back out to the user. A. I/O B. Transfer C. Control D. Branch C - -The x86 data type that is a signed binary value contained in a byte, word, or doubleword, using twos complement representation is _________. A. general B. ordinal C. integer D. packed BCD B - -The most fundamental type of machine instruction is the _________ instruction. A. conversion B. data transfer C. arithmetic D. logical A - -The _________ instruction includes an implied address. A. skip B. rotate C. stack D. push D - -Which of the following is a true statement? A. a procedure can be called from more than one location B. a procedure call can appear