Pt1420 Unit 8 Study Guide

Motherboard: The motherboard is where many components such as the CPU, GPU, RAMetc.are connected. The motherboard does not hold any data itself. It also holds ports for input and output devices to be connected, such as a monitor, mouse, keyboard etc.

An interrupt is a hardware generated change of flow of the execution within the system. An interrupt handler has to deal with the cause of the interrupt first and then the control is returned to the interrupted context and instruction.

Irregular Access memory is inside the PC which store the information and work with capacity memory to make lessen less and influence space for essential things to like record and documents in light of the fact that for individual protection.

In portable PCs the assets like utilization of force and memory assets ought to be managed carefully.

a. You input information perhaps via a keyboard or mouse to the computer and you receive output via a monitor or printer or some such device

a. The CPU tells the RAM which address holds the data that the CPU wants to

The advantages of interrupt driven I/O over programmed I/O is that in interrupt driven I/O the interrupt mechanisms free I/O devices quickly.

As it is required that only one writer should be inside the monitor to achieve data consistency. If the shared memory (protected resource) is kept inside the monitor then at any point of time either only one writer or reader can be inside monitor. But multiple reader should be able to read the data at the same time for efficiency of the system. If the shared memory is inside the monitor then multiple readers cannot read the data at the same time.

b).1. Instruction and data transfers would take three bus cycles each, one for the address and two for the data. Since If the address bus is 32 bits, the whole address can be transferred to memory at once.

In a mechanical computer mouse, the mouse, computer, and display work together to move the mouse pointer across the screen. When the mouse signals the computer about how the user has moved the mouse, which of the following answers best describes what the mouse tells the CPU?

1. Software – is to a computer as brain is to a human body. Hardware is functioned by the software. It collects data, organizes them and carries procedures.

In second-generation computers, to reduce the discrepancy in speed between the I/O and the CPU, an interface called the __a__ was placed between them to act as a buffer.

In order to access the value of M in a C instruction, the A register is used to contain a pointer / address of the location of the value of M, in memory (RAM). In a jump instruction, the A register is used to contain the pointer / address of the next C instruction in the instruction ROM, should the jump be triggered (Nisan & Schocken, 2005, p. 69)

9) The earliest computers employed ____ serial ______ processing, a name derived by the way the users have access to the systems.

Peripherals characterize the set of features available by the microcontroller and are controlled by the processor. For example, memory, serial port, parallel port and AD converter.