ORKOM 3RD MEETING

 

EMBEDDED SYSTEM

Nama: Reza Andika

Npm: 18311262

TK22A

1. DEFINITION OF EMBEDDED SYSTEM

Embedded system or embedded system is a special computer system designed to perform certain tasks and usually the system is embedded in a single system. This system becomes part of the overall system consisting of mechanics and other hardware. The field of embedded systems includes mastery of hardware (hardware). An embedded system is a digital system (electronic circuit) that is part of a larger system, which is usually not an electronic system. The word embedded indicates a part that cannot stand alone. In contrast to digital systems that are designed for general purpose. Embedded systems are usually implemented using a microcontroller, embedded systems can provide real-time responses and are widely used in digital devices, such as watches.

The embedded system is controlled by a microcontroller or Digital Signal Processor (DSP) which is dedicated to handling and completing certain tasks,

Some embedded systems that are often encountered in everyday life:

• signal processing system

          Real time video, DVD Player, health equipment

• Distributed controls

          Networking routers, switches, firewalls, mass transit systems, elevators.

• “Small” systems

        Mobile phones, pagers, toys, smartcards, MP3 players, PDAs, digital cameras, sensors.

EXAMPLE OF EMBEDDE SYSTEM

The embedded system can run because one of them has a microcontroller in it. It was mentioned a little above that the microcontroller will be attached to electronic goods, meaning that electronic goods contain embedded systems. Examples that are closest to us are electronic goods related to household needs, such as refrigerators, automatic washing machines, electric stoves, televisions, telephones, and others. Not only that, radio and DSLR or pocket cameras also use embedded systems.

Aspects that distinguish the Embedded System from other systems:

• cost(cost)

This is an aspect that can be said to be the most important because it greatly influences the design of an embedded system as a whole. In making an embedded system, components are usually selected optimally, namely those that enable the implementation of the system but at the lowest possible cost. This is because even a slight price difference can be very influential when the embedded system has to be widely marketed in large quantities.

• Time constraints 

Not a few embedded systems are also real-time systems, namely systems whose processes are limited by a time limit. These systems are generally systems that are used for critical purposes, and must always be active. Thus unlike a desktop computer system that can be rebooted, for example to maintain stability or deal with certain attacks such as viruses, in certain embedded systems this may not be acceptable. The embedded system must always be stable, including in the event of disruption by attacks. It must be considered what if a real-time system experiences a Denial of Service (DoS) attack which makes it slow so that the time limit is no longer fulfilled.

• Direct interaction with the real world 

Many embedded systems, especially embedded control applications, must interact directly with the real world. The result is that an error in a disturbance can have more fatal consequences than an ordinary computer system. If, for example, a server computer that stores the database experiences a crash, the worst thing that will happen is data loss, and if the database is backed up regularly, the loss will be even smaller. This will be very different if, for example, the control system in a chemical factory is disturbed and makes an error.

• Energy constraints

Many embedded systems draw power from batteries. This means the emergence of a new point of attack on embedded systems, namely the power supply. Electronics Still related to the latter, because an embedded system is a system that is very closely related to electronics, attacks or disturbances may also be carried out electrically, for example analysis with a multimeter, logic analyzer, and so on. Although other computer systems are basically electronic devices, the possibility of this being done is higher for embedded systems.