Answer:
The ER diagram for the auto service is shown in the attachment.
The microprocessor is programmed to follow the logic sequence of operation.
Monitoring various operator inputs, digital and analog inputs. Outputs to controlled devices take place.
Inputs: start switch, door safety contacts, water level sensor, wash cycle selector switch, etc.
Outputs: drive motor, motor speed regulation , reversing solenoids etc
Answer:
An operating system has three main functions: (1) manage the computer's resources, such as the central processing unit, memory, disk drives, and printers, (2) establish a user interface, and (3) execute and provide services for applications software.
Answer:
WITH deptsalary AS (
SELECT dept, SUM(salary)
FROM emp
GROUP BY dept)
SELCT *
FROM deptsalary
Explanation:
deptsalary is temporary table.
dept and its respective sum of salary is to be displayed
