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.
-Taking pictures
-Getting surveys
Answer:
Option B is correct.
CPU is used to fetch, decode and execute instructions. The CPU component used to perform this specific task is the Control Unit.
Explanation:
- The arithmetic-logic unit (ALU) is the part of a computer processor (CPU) that carries out arithmetic and logic operations on the operands in computer instruction words.
It doesn't do floating point computations (That's for the Floating Point Unit (FPU)). This makes option A false.
- Principal components of a CPU include the arithmetic logic unit (ALU) that performs arithmetic and logic operations, processor registers that supply operands to the ALU and store the results of ALU operations, and a control unit that ***orchestrates the fetching (from memory) and execution of instructions*** by directing the coordinated operations of the ALU, registers and other components.
- Control Unit is a component of a computer's central processing unit (CPU) that directs the operation of the processor. It tells the computer's memory, arithmetic and logic unit and input and output devices how to respond to the instructions that have been sent to the processor.
It is not directly and expressly used to perform integer arithmetic and bitwise logic operations.
What is the question for !!!!!!!!!!!!
Answer:
explanation below
Explanation:
Management controls are some of the techniques and mechanisms that can be put in place to implement security policies – which ensure information and information systems are protected. These controls are not only used by managers but can be exercised by selected users.
These controls must be put in place to cover all forms of information security, physical security and classification of those information.