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Information technology for the IoT is primarily driven by deeply embedded devices (defined below). These devices are low-bandwidth, low-repetition data-capture, and low-bandwidth data-usage appliances that communicate with each other and provide data via user interfaces. Embedded appliances, such as high-resolution video security cameras, video VoIP phones, and a handful of others, require high bandwidth streaming capabilities. Yet countless products simply require packets of data to be intermix -tenthly delivered. With reference to the end systems supported, the Internet has gone through roughly four generations of deployment culminating in the IoT:
Information technology infrastructure would typically include its internet connectivity internal networking between computers and other devices
- 1.Information technology (IT): PCs, servers, routers, firewalls, and so on, bought as IT devices by enterprise IT people and primarily using wired connectivity.
- 2.Operational technology (OT): Machines/appliances with embedded IT built by non-IT companies, such as medical machinery, SCADA (supervisory con-trol and data acquisition), process control, and kiosks, bought as appliances by enterprise OT people and primarily using wired connectivity.
- 3.Personal technology: Smartphones, tablets, and eBook readers bought as IT devices by consumers (employees) exclusively using wireless connectivity and often multiple forms of wireless connectivity.
- 4.Sensor/actuator Information technology: Single-purpose devices bought by consumers, IT, and OT people exclusively using wireless connectivity, generally of a single form, as part of larger systems.
Information technology is the fourth generation that is usually thought of as the IoT, and it is marked using billions of embedded devices. Embedded Operating Systems There are two general approaches to developing an embedded operating system (OS).
The first approach is to take an existing OS and adapt it for the embedded application. For example, there are embedded versions of Linux, Windows, and Mac, as well as other commercial and proprietary operating systems specialized for embedded systems. The other approach is to design and implement an OS intended solely for embedded use. An example of the latter is Tinos, widely used in wireless sensor networks. This topic is explored in depth in Information technology
In this subsection, and the next two, we briefly introduce some terms commonly found in the literature on embedded systems. Application processors are defined
Information technology is the fourth generation that is usually thought of as the IoT, and it is marked using billions of embedded devices. Embedded Operating Systems There are two general approaches to developing an embedded operating system (OS).
The first approach is to take an existing OS and adapt it for the embedded application. For example, there are embedded versions of Linux, Windows, and Mac, as well as other commercial and proprietary operating systems specialized for embedded systems. The other approach is to design and implement an OS intended solely for embedded use. An example of the latter is Tinos, widely used in wireless sensor networks. This topic is explored in depth in
1 Ms SQL Technical Support Services provide direct access to our expert MySQL Support engineers who are ready to assist you in the development.
2 Desktop Workstation systems now support highly sophisticated engineering and scientific applications and have the capacity to support image and video applications.
3 Server handle transaction and database processing and to support massive client/server networks that have replaced the huge mainframe computer centers of yesteryear
Year by year, the cost of computer systems continues to drop dramatically, while the performance and capacity of those systems continue to rise equally dramatically. Today’s laptops have the computing power of an IBM mainframe from 10 or 15 years ago. Thus, we have virtually “free” computer power. Processors are so inexpensive that we now have microprocessors we throw away. The digital pregnancy test is an example (used once and then thrown away). And this continuing technological revolution has enabled the development of applications of astounding complex-ity and power. For example, desktop applications that require the great power of today’s microprocessor-based systems include
- Image processing
- Three-dimensional rendering
- Speech recognition
- Videoconferencing
- Multimedia authoring
- Voice and video annotation of files
- Simulation modelling
- Information technology
Workstation systems now support highly sophisticated engineering and scientific applications and have the capacity to support image and video applications. In addi-tion, businesses are relying on increasingly powerful servers to handle transaction and database processing and to support massive client/server networks that have replaced the huge mainframe computer centers of yesteryear. As well, Information technology cloud service.
Microprocessors versus Micro-controllers as we have seen, early microprocessor chips included registers, an ALU , and some sort of control unit or instruction processing logic. As transistor density increased, it became possible to increase the complexity of the instruction set architecture, and ultimately to add memory and more than one processor.