| HARDWARE |
|---|
| CPU: | It is the
microprocessor, also known as the intelligent card. |
| RAM: | Random Access Memory,
it is volatile memory which means that when the power is turned off
it will lose the data that is stored. |
| ROM: | Read Only Memory.
Permanent memory which means the when power is turned off it will not lose
the data that is stored . |
| DRAM: | Dynamic Random
Access Memory, it is similar to RAM,
but it requires a periodic refresh from the CPU for it not to lose the data
that it stores . |
| SRAM: | Static
Random Access Memory. Classical RAM memory it does not
need to be periodically refreshed by the CPU. |
| EPROM: | Erasable and Programmable
Memory. Permanent memory that can be erased and reprogrammed with the
right tools. |
| FLASH: | Specific
type of EPROM that can be erased and reprogrammed by the CPU using the
appropriate SW. |
| SYSTEMS |
|---|
| RTU: | Remote Terminal Unit.
Peripheral for automation and control systems. |
| SCADA: | Supervisory Control and Data Acquisition.
Main unit for the supervision, control, and acquisition of data. |
| Field Bus: | Data
communications medium used in automation and process control industries,
connects the main controller to it peripheral. |
| SOFTWARE |
|---|
| Firmware: | It is
the SW that runs on a microprocessor card. |
| Real-Time: | A system that is able
to handle and respond in real time situation to asynchronous signal from
it’s surrounding environment. |
| RTOS: | Real
Time Operating System, a distinct operating
system used for real time applications. |
| Debugger: | A tool used to verify
the correctness of the SW. In an embedded environment it will run on a
host computer which then has a physical connection with its target, allowing
the FW to be debugged. |
| TCP/IP: | Transmission
Control Protocol/Internet Protocol. A Protocol
that creates a reliable connection (ie. architecture CLIENT/SERVER )between
process so that it can exchange data streams. |
| UDP/IP: | User Datagram
Protocol/Internet Protocol. It allows the the exchange
of packets (datagram) without the need of fixed connection. |
| ARP: | Address
Resolution Protocol. Protocol that utilizes a network (ie.
Ethernet) to resolve the actual address of the host and the IP address. |
| SNMP: | Simple Network
Management Protocol. Protocol used to handle TCP/IP networks. |
| FTP: | File
Transfer Protocol. Protocol used to transfer files over a
network. |
| NFS: | Network File
System. Distributed file system connecting various computers on
a network. |
| SLIP: | Serial
Line Internet Protocol. . Internet connection using the
TCP/IP protocol with a serial line (Modem connection). |
| PPP: | Point to Point
Protocol. Internet connection using the TCP/IP protocol slightly
faster then a SLIP connection. |
| Embedded environment: |
HW & SW environments for the design and development of firmware. |
