Languages-Assembly Language [3i Infotech Placement]: Sample Questions 9 - 11 of 51
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Question 9
Explanation
- An embedded system is computer hardware with software embedded in it.
- Can be an independent system or be a part of a large system.
- Usually a microcontroller or microprocessor based system designed to perform a specific task.
Components of an embedded system
An embedded system has three components:
- Hardware
- Application software
- Read time operating system supervises application software and allows processor to run process.
Characteristics of an embedded system
Question 10
Explanation
- MODEM or modulator-demodulator is a hardware device connecting a computer or router to a broadband network.
- It is typically an analogue to digital device.
- A cable modem and DSL modem are two examples.
- Modem can also use a network card in the computer.
Question 11
Explanation
- The bidirectional data bus, sometimes called the memory bus, transfers data and instructions between functional areas of the computer.
- Can only transmit in one direction at a time.
- Data bus transfers instructions from memory to the CPU for execution.
- Carries data “to and from” the CPU and memory as required by instruction translation.
- The data bus also transfers data between memory and the I/O devices during input/output operations.