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Q: Choose the correct answer: 1. The signal used to insert Tw state: a. RESET b. HLT 2. DRAM access time is: a. (500-700) n sec b. (0.05-0.07) μ sec C. READY d. RD c. (5-7) µ sec d. Neither a, b, nor c 3. If you have a ROM of size 5060 byte, suitable the number of address line to cover it is: a. 11 address lines b. 12 address lines c. 13 address lines d. 14 address lines 4. In isolated input/output port, port 27 (16-bit port) is: a. Port 53 & 54 (8-bit port) b. Port 54 & 55 (8-bit port) 5. The ROM type that can erase its data is: a. PROM b. EPROM c. Port 26 & 27 (8-bit port) d. Port 27 & 28 (8-bit port) c. EEPROM d. b & c

Someone you know has recently made the investment in a brand new computer. She says her new system is 1GHz, which is far faster than her old one, which ran at 300MHz. What would you try to tell her? (Here's a hint: consider the relevance of Amdahl's Law.)

Your close friend has just invested in a brand new computer. How should you proceed? She says that the speed of her new system, 1GHz, is much higher than that of her old system, 300MHz. Just what do you see yourself telling her? (Here's a hint: consider the implications of Amdahl's Law.)

Your friend has just bought a new personal computer. She tells you that her new system runs at 1GHz, which makes it over three times faster than her old 300 MHz system. What would you tell her? By using a specific example case (e.g., In a given system, for 40% of its time the processor is busy with computation but for 60% of its time processor is idle waiting for the completion of I/O operations in disk and network devices),  explain how Amdahl’s law can be applied

A gaming device has to transfer a high definition 1280 x 720 x 3 video frame @ 30 frames/sec. The 32-bit system bus operates at 100MHz clock. It takes one clock cycle to make one transfer through the bus (i.e. D=1) and there is an overhead of ten clock cycles per transfer (i.e. O=10) Is this bus suitable for this system? If not, then what can be done to make it suitable? Explain. What if the bus operates in burst mode (burst size of 4)? Would it be suitable to use? Explain.

22. From amongst the following given scenarios determine the right one to justify interrupt mode of data transferi) Bulk transfer of several kilo-byteii) Moderately large data transfer of more than 1kbiii) Short events like mouse actioniv) Keyboard inputs a. i and ii b. ii c. i,ii and iv d. iv

31. The factors that define QoS are : a. Throughput b. Jitter c. Delay d. All of the mentioned

Q1) A common bus system which is capable of transferring 4 bits at time with number of registers are 4 and each register is of 4 bits? Draw circuit diagram using Tri state buffer with proper labelling and explain its working ?

Asynchronous serial communication is made between the keyboard peripheral and the digital computer. The "A" character printed from the keyboard will be transferred to the CPU. (Note: take the start and end bits as 1 bit long and the character bits as 8 bits long. Since ASCII is 7 bits, add a bit 0 to the most significant bit.) In the asynchronous serial communication connection, explain the operations from the keyboard to the digital computer only, through this example. Also, explain the types of errors that can be encountered in this connection, through this example.

Would you add a screenshots : create a working serial communication solution containing optocouplers between an Arduino and a Raspberry Pi. Basic requirements for your solution: Arduino must send a minimum of at least 10 characters via the optocoupler to Raspberry.Raspberry will receive these characters and print them on console / monitor.-> (Error handling should be implemented to ensure correct communication. This can be done with parity bit or checksum.)

a.) In the computer system, the Bus is said to be a collection of wires through which datais transmitted. The bus could be unidirectional or bidirectional depending on what isbeing done at a time. With reference to the type of buses explain this phenomena orprinciple. b.) How does the size or width of a Bus affect or influence the architecture of a computersystem with regards to data transmission? Explain with examples.  c.) Explain the purpose of the Registers and Flags in the operation of the CPU

Your friend has just bought a new personal computer. She tells you that her new system runs at 1GHz, which makes it more than three times faster than her old 300MHz system. What would you tell her? (Hint: Consider how Amdahl’s Law applies.)

Pls solve this question correctly in 5 min i will give u like for sure Suppose two CPU A and B have exactly the same circuits, but different clock frequencies. Answer the following questions: a) If the clock frequency of CPU A is 8MHz, how long is one clock cycle of CPU A? b) If the CPU A can execute 0.4 million instructions per second on average, how long is the average time to execute one instruction? c) What is the average number of clock cycle to execute one instruction for CPU A? d) The frequency of CPU B is 12MHz. What is the average number of instructions that can be executed per second?

194. What is the usual number of bits transmitted simultaneously in parallel data transmission used by microcomputers? a. 4 b. 9 c. 12 d. 15

Which of the following general statments about computer hardware is/are true? Check all that applya)  SRAM usually uses more power than DRAMb) Both multiplexors and busses can be imlemented using tri-state drivers c) In general, inputs are latched at the start of a clock cycle and outputs are enabled at the end. d) It is easy to support multiple simultaneous writers on a bus. e) According to the following diagram:   If A=0, B=0, C=1, and D=1, the output is driven to E=0.

Does the computer use serial data transmission or parallel data transmission, or both? Justify your answer by showing how and for what the computer uses that type of transmission. Explain the differences between the two types of data transmission and the advantages of each.

50. The meaning of Straight-through Cable is a. Four wire pairs connect to the same pin on each end b. The cable Which Directly connects Computer to Computer c. Four wire pairs not twisted with each other d. The cable which is not twisted

90. The interactive transmission of data within a time sharing system may be best suited to a. simplex lines b. half-duplex lines c. full duplex lines d. None of these

Assume we have a computer with the following specifications: a magnetic disc with a delay of 15 milliseconds and a streaming transfer rate of 5 megabytes per second. What is the effective transfer rate for the disc described if an average access is followed by a streaming transfer of a. 1024 bytes?