Draw the state table and the logic circuit for a 3-bit binary counter using D flipflop. 5m Jun2008 Binary counter A digital circuit which has a clock input and a number of count outputs which give the number of clock cycles. The output may change either on rising or falling clock edges. The circuit may… Read More »
Give block diagram of DMA controller. How does the CPU initialize the DMA transfer? 5m Jun2008 Device Controller A device controller need not necessarily control a single device. It can usually control multiple I/O devices. It comes in the form of an electronic circuit board that plugs directly into the system bus, and there is… Read More »
Explain briefly the working of two-pass assembler. 5m Jun2008 Two-pass assembler: Assemblers typically make two or more passes through a source program in order to resolve forward references in a program. A forward reference is defined as a type of instruction in the code segment that is referencing the label of an instruction, but… Read More »
List three differences between Dynamic RAM and Static RAM. 3m Jun2008 Static RAM ü SRAM uses transistor to store a single bit of data ü SRAM does not need periodic refreshment to maintain data ü SRAM’s structure is complex than DRAM ü SRAM are expensive as compared to DRAM ü SRAM are faster than… Read More »
Draw logic circuit for a converter that converts 4 bit binary input to its equivalent BCD number. 8m Jun2008 A four bit number can be any number value between 0 to 15 i.e. 0 to F in Hexadecimal. BCD is a number which is represented in binary as a decimal number hence it can have… Read More »