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Not The Whitsundays, Australia, Part 1
You've probably heard of the Whitsundays - beautiful Australian tropical islands with white sandy beaches and coral reefs...
Author: Tony Stockill - Category: Travel
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Not The Whitsundays, Australia, Part 2
The lush setting was quite a contrast to some of the red dirt sites where we stayed in the Australian Outback...
Author: Tony Stockill - Category: Travel
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Not The Whitsundays, Australia, Part 3
The Whitsunday region extends South down the coast of Queensland, Australia, as far as Mackay, and North as far as Bowen...
Author: Tony Stockill - Category: Travel
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Not The Whitsundays, Australia, Part 4
A trip North up the Bruce Highway to Bowen takes about an hour The approach to the town from the South has the usual Information centre, with a feature of the Big Mango...
Author: Tony Stockill - Category: Travel
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RV In Australia
RVs have been a long established means of touring or vacationing in Australia The size of the country, plus the comparitively small population, has made it a requirement to plan well for an extended trip...
Author: Tony Stockill - Category: Recreation
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Keyword Selection - Finding A Good One! - Part 1
How do I attract more traffic to my website
What are the best Keywords to use for my niche product...
Author: Tony Stockill - Category: Internet
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Keyword Selection - Finding A Good One! - Part 2
To refresh your memory from the previous article, we looked at how we can get a list of keywords from Overture...
Author: Tony Stockill - Category: Internet
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Rv In Australia Part 2
In the first part of RV in Australia, I tried to give a sense of the country from a newly arrived road trave enthusiast's point of view...
Author: Tony Stockill - Category: Travel
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History Of The Computer - Redundancy - Part 2 Of 2
Can you see what's coming next What happens if the controller fails...
Author: Tony Stockill - Category: Computers and Technology
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History Of The Computer - Memory Error Correction Codes Part 1 Of 2
We have mentioned before, in the history of the computer series, that various forms of error correction are used, in cases where the medium is unreliable...
Author: Tony Stockill - Category: Computers and Technology
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History Of The Computer - Memory Error Correction Codes Part 2 Of 2
32 bit or 64 bit words are common, but for illustration purposes, we will use our 7 bit word from the example above, without the parity bit...
Author: Tony Stockill - Category: Computers and Technology
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History Of The Computer - Real-Time Systems - Part 1 Of 2
We have mentioned before, in the history of the computer series, that digital computers have been developed as general purpose machines...
Author: Tony Stockill - Category: Computers and Technology
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History Of The Computer - Real-Time Systems - Part 2 Of 2
The computer is used to maintain the stock of parts at the lowest possible level, and to do this is able to alert suppliers, or repair shops on the base, when a replacement part is required...
Author: Tony Stockill - Category: Computers and Technology
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History Of The Computer - Redundancy Part 1 Of 2
We have mentioned previously, in history of the computer, that mainframes are large scale devices We have also mentioned various forms of error correction...
Author: Tony Stockill - Category: Computers and Technology
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History Of The Computer - Mass Storage Part 1 Of 3
We have mentioned mass storage in passing previously, in the history of the computer series The term mass storage is applied to a group of media, including drums magnetic tape and disks...
Author: Tony Stockill - Category: Computers and Technology
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History Of The Computer - Mass Storage Part 2 Of 3
MAGNETIC DISK STORAGE
Magnetic disks used a similar recording system to the drums, but arranged on magnetic coated platters, made of aluminum, approximately 1ft in diameter...
Author: Tony Stockill - Category: Computers and Technology
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History Of The Computer - Mass Storage Part 3 Of 3
MAGNETIC TAPE STORAGE
Beginning in the 1950s, magnetic tape has progressed from the original half inch wide ferrite coated tape on open reels 10inch diameter and 2400ft long to the current cassettes mounted on drives in stacks...
Author: Tony Stockill - Category: Computers and Technology
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History Of The Computer - Data Handling Peripherals Part 3 Of 3
TELETYPE MACHINES
Developed for telegraph 'hard copy' communication over the telephone network, a teletype machine was suited to adoption by the rapidly expanding computer market, with its demand for hardware and technology to run it...
Author: Tony Stockill - Category: Computers and Technology
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History Of The Computer - Data Handling Peripherals Part 2 Of 3
SYSTEM AND WORKSTATION PRINTERS
The line printer used on mainframes was variously a drum printer, where all the characters are etched on a spinning drum, a band printer with an oscillating or circulating print band, or a shuttle printer, all of these using print hammers to transfer ink from a ribbon to continuous sprocket feed paper...
Author: Tony Stockill - Category: Computers and Technology
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History Of The Computer - Data Handling Peripherals Part 1 Of 3
We have discussed, in the History of the Computer series, the operation and development of the computer and changes in the technology...
Author: Tony Stockill - Category: Computers and Technology
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History Of The Computer - The Bootstrap
In previous articles in the History of the Computer series we discussed machine codes, programs, and memories...
Author: Tony Stockill - Category: Computers and Technology
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History Of The Computer - Codes For Data Transfer, Part 1 Of 3
We have seen, in the History of the Computer series, how machine code is used to operate a computer so that it can use 1s and 0s to interpret a program's intentions...
Author: Tony Stockill - Category: Computers and Technology
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History Of The Computer - Codes For Data Transfer, Part 2 Of 3
COMPUTER CODES
Various codes have been used in computing, EBCDIC, Fieldata etc, with various bit combinations, and total bits between 5 and 8...
Author: Tony Stockill - Category: Computers and Technology
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History Of The Computer - Codes For Data Transfer, Part 3 Of 3
DATA TRANSMISSION CODES
We have mentioned teletype machines, these were the backbone of operator communication with the computer, but were also used for remote input of data...
Author: Tony Stockill - Category: Computers and Technology
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History Of The Computer - Machine Code Programs Part 1 Of 3
In previous articles in the History of the Computer series we looked at adding, counting, and memory etc...
Author: Tony Stockill - Category: Computers and Technology
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History Of The Computer - Cache Memory Part 1 Of 2
We looked at the early digital computer memory, see History of the computer - Core Memory, and mentioned that the present standard RAM (Random Access Memory) is chip memory...
Author: Tony Stockill - Category: Computers and Technology
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History Of The Computer - Cache Memory Part 2 Of 2
(Times and speeds quoted are typical, but do not refer to any specific hardware, merely give an illustration of the principles involved...
Author: Tony Stockill - Category: Computers and Technology
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History Of The Computer - Machine Code Programs Part 2 Of 3
What components will we be using We have mentioned Registers as being where data being worked on is stored...
Author: Tony Stockill - Category: Computers and Technology
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History Of The Computer - Machine Code Programs Part 3 Of 3
Now lets look at the program again
(0)000 - 000 011 000 STORE
(1)001 - 000 100 001 STORE
(2)010 - 001 000 010 ADD
(3)011 - 010 001 001 SUBTRACT
(4)100 - 011 001 010 BRANCH
(5)101 - 100 000 000 STOP
We start with the instruction in location 000...
Author: Tony Stockill - Category: Computers and Technology
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History Of The Computer - Core Memory Part 3 Of 3
OK, now how does it work We have said how we can store a 1 or 0 in a core by flipping it from one state to the other...
Author: Tony Stockill - Category: Computers and Technology
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