Computer Solutions Ltd
 Advanced Search

After supplying all your  Embedded Development Tool needs for 42 years
 Computer Solutions Ltd and its web shop are now closed.



 Having reached the grand old age of 75 it is time to relax and fulfil other ambitions.

 Its been an exciting ride with you, our customers, often on the bleeding edge of technology
 and I thank you for your friendship, your trust, and your orders.

Stay well        I wish you all success in your future projects.

Chris Stephens.



     But what to do with the web site ?  It has taken >12 man years of work to create a repository of knowledge on many aspects of the art and science of embedded microprocessor development and even after closing the shop it still gets over 4,000 visitors per month.  So as a service to my customers I have decide to keep it live providing my technical insights on the products and then redirecting viewers to sites where they can purchase the items they used to buy from us. Follow the link   "Home"

       The  "Information zone"  consists of articles produced as background tutorials on subjects of interest to those designing new products.  As different CPUs have became available this has lead to new development techniques and in particular to new ways of communicating between nodes.


Home Information Zone

Plain man's guide to
TCP/IP and related Mnemonics

802.11 A radio LAN standard This is one of the standard for wireless networks (AKA Wi-Fi)
AKA Also Known As Not an internet specific abbreviation but here to avoid confusion
ARP Address Resolution Protocol Translates an internet address into a hardware address
BOOTP Bootstrap Protocol For remote booting of diskless devices
CGI Common Gateway Interface A standard that allows web pages to invoke and pass data to Server programs
CHAP Challenge Handshake Authentication Protocol A PPP option that allows both ends to use passwords to check for a valid connection
CIFS Common Internet File System Networked access to Microsoft Windows file systems and peripherals (AKA SMB)
CSLIP Compressed Serial Line Interface Protocol Compressed version of SLIP
DHCP Dynamic Host Configuration Protocol Allocates IP addresses dynamically
DNS Domain Name Server A program / computer that converts a domain name into it's IP address
FTP File Transfer Protocol An application that transfers files across the network
HTML Hyper Text Mark-up Language  The standard used to create web pages
HTTP Hyper Text Transfer Protocol The protocol used to transmit web pages
ICMP Internet Control Message Protocol Used to report errors from IP level and above
IGMP Internet Group Management Protocol Used when broadcasting to groups that exist across routers.
IMAP Internet Mail Access Protocol A relatively new advanced email Server that allows users to hold and manage their emails on the Server.
IP Internet Protocol The mechanism for delivering packets across the network
IPv6 The next proposed version of Internet Addressing Protocol Able to address many more items on a network this extension to IPv4 is still a few years away from normal use.
IPCP IP Control Protocol PPP's control protocol
IPSec Secure Internet Protocol A secure version of IP
IIOP Internet Inter ORB Protocol Protocol for passing object data
ISP Internet Service Provider A company that links an end user to the Internet backbone
LCP Link Control Protocol A PPP option negotiation
MIB Management Information Base  A table of devices used by SNMP
MIME  Multi Purpose Internet Mail Extensions  Standard for adding diverse types of files to emails
MFS Microsoft File System  Used by Microsoft OSs to link file systems across networks.
MTA Mail Transfer Agent An application for sending emails
MUA Mail User Agent An application for creating and reading emails
NAT Network Address Translation A method of connecting multiple computers to any IP network using a single IP address.
NFS Network File System A protocol for controlling remote NFS file systems
NTP Network Time Protocol  Used to set the clocks on multiple machines across a network
ORB Object Request Broker Standard for object data interchange
PAP Password Authentication Protocol PPP password
PING A diagnostic program  It tests the connection with a specified URL
POP3 Post Office Protocol A mail protocol that can include attachments
PPP Point to Point Protocol Supports simple (typically serial) links between computers on a network
PPPoE Point to Point Protocol over Ethernet Allows applications written for PPP to run across Ethernet links
RARP Reverse Address Resolution Protocol Allows a host to obtain it's IP address by sending it's hardware address
RIP Router Internet Protocol Used to control Routers
SLIP Serial Line Interface Protocol Simple protocol often used with RS232
SMB Server Message Block Networked access to Microsoft Windows file systems and peripherals (AKA CIFS)
SMTP Simple Mail Transfer Protocol Protocol for sending and receiving emails. Messages must be text
SNMP Simple Network Management Protocol Protocol used by computers that monitor and manage network activity to communicate with one another and the computers they are monitoring
Comes in 3 versions:
     v1 Simple – Simple
     v2 Some Security
     v3 Advanced Security & Encryption
SNTP Simple Network Time Protocol  Synchronises clocks across a network
SSL Secure Socket Layer  Sits below TCP, UDP and uses encryption and certification to provide commercial levels of security.
TCP Transmission Control Protocol Puts data into packets for delivery by IP
TELNET   An application that allows logging into remote computers
TFTP Trivial File Transfer Protocol TFTP is a subset of FTP which does not require valid username and password.
TLS Transport Layer Security Like SSL which it supersedes uses encryption and certification to provide commercial levels of security.
UDP User Datagram Protocol Protocol found at the internet layer along with the TCP protocol. UDP does not guarantee reliable, sequenced packet delivery. If data does not reach its destination, UDP does not retransmit as TCP does


For more Information:

MicroNet stack A stripped down TCP/IP stack that is small enough to be suitable for 8 and 16 bit micros.  It has drivers for Ethernet and PPP as well as FTP and Web server packages available.
RT-IP TCP/IP stack   A full stack with device drivers and network applications such as FTP, Mail and embedded Web servers and browsers.
TCP/IP Paper Still Confused? - download a white paper designed to introduce Embedded 8 & 16 bit engineers to the possibilities and pitfalls of TCP/IP
EBS and RT-PX Suppliers of RT-IP and a free multi-tasking executive.

Home Information Zone
Computer Solutions Ltd
87 Briar Road,  Shepperton,  Middx,  TW17 0JB
Telephone: +44 (0) 77 4342 2526   
Email:      Web:
Copyright 2022 Computer Solutions Ltd