4 Types Of Dimmers :
1. Incandescent/Halogen
2. Magnetic Low Voltage (MLV)
3. Fluorescent
4. Light Emitting Diode (LED)
These are the different types of switches :
1. A single-pole switch controls lights from a single location. ...
2. A 3-way switch provides two separate control locations and is best used with recessed lights. ...
3. A 4-way switch provides for three or more dimming locations.
4. Switches are wired to the "hot" conductor in a wall box.
<em>I hope that my answer helps!</em>
Answer:
(b) Windows is an open source operating system (<em>This is not correct</em>)
Explanation:
Option a is <em>correct</em> because Xerox PARC(Palo Alto Research Center), which is a subsidiary of the Xerox corporation, has been greatly responsible for invention and development in modern computing devices. Some of these developments are in Ethernet and graphical user interface (making use of menus, icons e.t.c).
Option b is <em>not correct</em> because Windows Operating system is not an open source operating system. Open source OS means users can interact with the driving code of the OS and make modifications. Windows does not support this feature. Operating systems that are open source include Linux and OpenSolaris.
Option c is <em>correct</em>. An operating system has two main components - the kernel and the user interface. The core component of an operating system is the Kernel as it interacts directly with the hardware and manages system resources. The user interface on the other hand allows users to interact with the kernel of the operating system using texts and/or graphics as commands.
Option d is <em>correct</em>. Linux operating system is an open source OS. Therefore, the source code is made available to the public for examination and modification.
Answer:
machine language uses binary code and assembly language uses mnemonic codes to write a program.
Explanation:
In a nutshell, machine language uses binary code, which is almost impossible for humans to decipher, whereas assembly language uses mnemonic codes to write a program. Mnemonic codes make it simpler for humans to understand or remember something, and so make the language a bit easier for humans to use than machine code.
