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You Are On Multi Choice Question Bank SET 1246

62301. To reduce the number of pins on high-capacity DRAM chips, address ________ is used so that a single pin can accommodate two different address bits.





62302. The number of 16k × 4 memories needed to construct a 128k × 8 memory is ________.





62303. The minimum number of address lines needed for a 64K memory is ________.





62304. The 2147 4K × 1 static RAM contains 4096 storage locations storing one bit each. ________ 2147 RAM memory chip(s) is/are needed to configure an 8K × 8 memory.





62305. A CD-ROM is a form of read-only memory in which data are stored as ________.





62306. A type of read/write memory available with MOS technology is ________.





62307. All rows in a 2118 dynamic RAM need to be refreshed ________.





62308. ROM access time is defined as ________.





62309. In DRAM operations, it is assumed that R/W is in its ________ state during a ________ operation.





62310. The major advantage of dynamic RAM over static RAM is ________.





62311. The address space of a RAM memory can be expanded using a decoder and additional memory ICs. The output of the decoder should be connected to which input line of the memory?





62312. The memory operation that presents data on the memory outputs after entering a new address is called ________.





62313. Dynamic memory is memory ________.





62314. Because of their nonvolatility, high speed, low power requirements, and lack of moving parts, ________ have become feasible alternatives to magnetic disk storage.





62315. The memory operation that stores data into a memory location after entering a new address is called ________.





62316. A DIMM ________.





62317. When the term RAM is used with semiconductor memories, it usually means ________ as opposed to ROM.





62318. Dynamic RAMs store information by using ________.





62319. When more than one IC is used to provide all the addressable locations in a memory, a technique called ________ is used to identify which IC is being accessed.





62320. The periodic recharging of dynamic RAM memory cells is called ________.





62321. A(n) ________ is user programmable and can also be erased electronically and reprogrammed as often as desired.





62322. A FIFO ________.





62323. PROMs are programmed by ________ fuses.





62324. When a computer is executing a program of instructions, the CPU will ________ memory locations as dictated by the program instructions.





62325. A DRAM has a RAS and a CAS because ________.





62326. Floppy disks are organized into concentric rings called ________.





62327. Read-only memory is memory ________.





62328. A ________ is user-programmable memory that cannot be erased and reprogrammed.





62329. A device that needs constant refreshing to avoid losing data is a(n) ________.





62330. Information that is stored in a mask ROM ________.





62331. Flash memories are so called because of the rapid ________ times.





62332. How many address bits are needed to select all memory locations in the 2118 16K × 1 RAM?





62333. The check sum method of testing a ROM:





62334. Refer to the given figures (a) and (b). A logic analyzer is used to check the circuit in figure (a) and displays the waveforms shown in figure (b). The actual analyzer display shows all four data outputs, Q0-Q3. The analyzer's cursor is placed at position X and all four of the data output lines show a LOW level output. What is wrong, if anything, with the circuit?





62335. What is the meaning of RAM, and what is its primary role?





62336. The storage element for a static RAM is the ________.





62337. In a DRAM, what is the state of R/W during a read operation?





62338. The condition occurring when two or more devices try to write data to a bus simultaneously is called ________.





62339. How many bits are used in the data bus?





62340. The items that you can physically touch in a computer system are called:





62341. Single-bit indicators that may be set or cleared to show the results of logical or arithmetic operations are the:





62342. When referring to instruction words, a mnemonic is:





62343. The technique of assigning a memory address to each I/O device in the computer system is called:





62344. When was the first 8-bit microprocessor introduced?





62345. What type of circuit is used at the interface point of an output port?





62346. I/O mapped systems identify their input/output devices by giving them a(n) ________.





62347. What type of circuit is used at the interface point of an input port?





62348. The register in the 8085A that is used to keep track of the memory address of the next op-code to be run in the program is the:





62349. The control bus and memories share a bidirectional bus in a typical microprocessor system.



62350. All computer programs for a machine are called:





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