Smart Technology

  Introduction to Networks A network is basically all of the components (hardware and software) involved in connecting computers and applications across small and large distances. Networks are used to provide easy access to information, thus increasing productivity for users. This section covers some of the components involved with networking as well as the basic types of topologies used to connect networking components, including computers. Resources that are commonly shared in a network include data and applications, printers, network storage components (shared disk space), and backup storage component s. Network Characteristics   The following characteristics should be considered in network design and ongoing maintenance: o               Cost Includes the cost of the network components, their installation, and their ongoing maintenance. o    Security Includes the protection of the network components and the data they cont...

                                                           Processor Registers    A processor includes a set of registers that provide a level of memory that is faster and smaller than main memory . the register in the processor server two function: User - visible registers :  Enable the machine or assembly-language programmer to minimize main memory references by optimizing register use. For high-level languages , an optimizing compiler will attempt to make intelligent choices of which variable to assign to registers and which to main memory locations. Some high-level languages , such a C allow the programmer to suggest to the compiler which variable should be held in registers. Data registers - can be assigned to a variety of functions by the programmer . In some cases , they are general purpose in nature and can...

  Basic Elements At a top level, a computer consists of processor, memory ,and I/O components, with one or more modules of each type. These components are interconnected in some fashion to achieve the main function of the computer, which is to execute programs. Thus, there are four main structural elements: Processor: Controls the operation of the computer and performs its data processing functions. When there is only one processor, it is often referred to as the central processing unit( CPU). Main Memory: Store data and programs. this memory is typically volatile; it is also referred to as real memory or primary memory. I/O modules: Move data between the computer and its external environment. The external environment consists of a variety of external devices , including secondary memory devices, communication equipment, and terminals. System bus: Some structures and mechanisms that provide for communication among processor , main memory , and I/O modules.     ...

    Embedded System Definition “ An embedded system is a system that has embedded software and computer-hardware, which makes it a system dedicated for an application or specific part of an application or product or a part of a larger system. "     It is , any device that includes a programmable computer but is not itself intended to be a general-purpose computer and a fax machine or a clock built from a microprocessor is an embedded computing system.  Embedded microcontrollers is embedded system are electronic system that contain a microprocessor or microcontroller, but we do not think of them as computer the computer is hidden or embedded in the system.  Embedded software primer “ People use the term embedded system to mean any computer system hidden in any of these products.” A system is a way of working , organizing or doing one or many tasks according to a fixed plan, program, or set of rules.  A system is also an arrangement in which all its un...