I am a retired software engineer .
I started my career in 1961 writing programs for one of the first computers in the world in assembler language on 5-channels punched tape. I retired in 2004 while I was working on the Blu-Ray project.
To give you an idea of the progress in the computer world : If you want to make a copy of the content of a Blu-Ray disc on a punched tape, the length of the tape must be at least 60000 kilometers.
I also have a site at Webshots : akoene100
My hobbies: Travel,photography, puzzles..like cryptograms and sudokus. I made a combination of my photos and a sudoku:
My featured pictures:

0001-0100 0101-0200 0201-0300

=Timber==Landmark==Boating===Streets=====Mood===European=

=European=European==Statues==Alphabet===Alphabet=H2OMotion=

=Orchids==Numbers===Metallic==Coastal===European==Frontal==

==Frontal===Frontal====Purple===Nat.Color==European==History=

=Balkan====Balkan==Bub.Week=Bub.Week===Garden===Garden=

=Seasonal==Rainbow==Rainbow==France===Rainbow==Numbers=

=Globes====Garden===Garden==European==Alphabet==European=

=European=European==Hearts==12Feature===Trees====Statues=

=Statues===Balkan====Garden===Garden===Coastal===Harbour=

==Timber===Europa===Rainbow===Spring===Balkan===Proteas==

=Elephant==Alphabet==Germany===GMT====4Winners===Trees==

=Elephant=MagicPlace==Balkan====Sea===Color.Light=European=

=Alphabet===Snow==Switzerland=Switzerland=Mountain==Photo101=

==Castles==Landmark=Rhododen=Statues==Scavenger=Alphabet=
Featured group member in:
Stream Crossings
Lisbon and surroundings
Portugal
Rivers,lakes and dams
Mountains and light
All about boating
Going coastal
Statues and such
A Fascinating Purple
Dutch Touch
Garden design + Colour & light
EUROPA

Challenge winners:
Pictures ended in Top Ten of a Challenge: (with at least 10 entries)

.# 3 Top10. .# 3 Top10. .# 5 Top10. .# 2 Top10. .# 7 Top10. .#10Top10.

.# 9 Top10. .# 6 Top10. .# 8 Top10. .# 8 Top10. .# 3 Top10. # 5 Top10.

.# 8 Top10. .# 4 Top10. .# 6 Top10. .# 7 Top10. .# 9 Top10. .# 8 Top10.

.# 8 Top10. .# 9 Top10. .# 8 Top10. .# 7 Top10. .# 9 Top10. .# 7 Top10.

.# 4 Top10. .# 4 Top10. .#10Top10. .# 8 Top10. .# 6 Top10. .# 2 Top10.

.#10Top10. .# 6 Top10. .# 8 Top10. .# 5 Top10. .# 8 Top10. .# 9 Top10.

.# 6 Top10. .# 7 Top10. .# 7 Top10. .#10Top10. .# 3 Top10. .# 4 Top10.

.# 3 Top10. .# 8 Top10. .# 8 Top10. .# 7 Top10. .# 2 Top10. .# 6 Top10.

.# 7 Top10. .# 5 Top10. .# 5 Top10. .# 8 Top10. .#10Top10. .#10Top10.

.# 5 Top10. .# 4 Top10. .# 4 Top10. .# 5 Top10. .# 5 Top10. .# 4 Top10.

.# 2 Top10. .#10Top10. .# 4 Top10. .# 6 Top10. .# 5 Top10. .# 4 Top10.

.# 4 Top10. .# 5 Top10. .# 9 Top10. .# 2 Top10. .# 5 Top10. .# 2 Top10.

.# 7 Top10. .# 7 Top10. .# 3 Top10. .# 5 Top10. .# 3 Top10. .# 9 Top10.

.#10Top10. .# 3 Top10. .#10Top10. .# 8 Top10. .# 5 Top10. .#4Top10.
!
!:
.# 5 Top10. .# 2 Top10. .# 9 Top10. .# 3 Top10. .# 4 Top10. .# 2 Top10.

.# 7 Top10. .# 8 Top10. .# 5 Top10. .# 2 Top10. .# 9 Top10. .# 8 Top10.
Arie Koene hosts Capital cities of the World and is a member of ! # 1 ARTISTS OF REDBUBBLE !, All Things Orange Artwork Gallery, The Fruit and Veg Shop(2 uploads a Day), Yellow Gallery, !"All About Hearts"!, "Mornings & Evenings -- Sunbeams & Storms" 1 a day, "Stream Crossings" 2 posts a day!, *A Beautiful Blur, *Berries, Fruits & Seeds* - 3/day, *Chocoholics Anonymous*, *Islands of The World* - 3/day limit, 1. The Mysterious Balkans , 12 Great Features - Challenge Themes ONLY, 4 Winners Only, A Fascinating Purple , A Fractal Energy Passion, A Garden somewhere....., Adjacent Flames, All About Boating, All About Flowers, All About Water, All Around the Styles, All Castles Around The World, All Countries ~ Wetlands, Ponds, Lakes and Rivers , All Pets Great and Small, All the Colors of the Rainbow, All Water in Motion (A Camera In The Description Before It Will Be Accepted), Alphabet Soup (Letter ~ R), Angel Wings and Heaven, Animal Kingdom, Animal Photography - Limit 1 Photo Submission a Week, Architecture and cityscapes, Art in Math, Art of Glass, Austria, BEAUTIFUL BELGIUM (Belgie, Belgique), Bicycle, Birds and Creatures of Flight, Black with a hint of colour, Blooming Trees - 2 per day, Both Sides Now, Bridges, Bubblers' Weekly Challenge, Butterflies, Skippers, Moths, & Other Winged Insects, Cacti and other Succulents, Candid Photography, Canon Vs Nikon, Cars, Motorbikes and Motorsports, Castle Magic, Cats and Dogs (1 per day), Challenge Café, Color and light, Color Me a Rainbow (Current Color: Rainbow), Colors of Water, Colour Me Vibrant Red!, Contemporary Architecture, contrasting perceptions (NEW RULES PLEASE GO READ THEM), Country Bumpkin, COUNTRY ROADS / around the World, Dawn and Dusk Light, Day Hikes , Dimensions, Dresses, Dutch Touch, Ebony and Ivory, Elegant Elephants!, European Everyday Life, Everyday Life, Everything Winter, Exotic Mammals, Fabulous Flowers, Falling Leaves, Farms and Countryside, Flags in motion, Flowers in macro (very close macro please), Fractal Art Frenzy, Freedom to Shine, Full Frontal Facades, Funny Kritters, Globes, Spheres and Curves - 2 per day, Glorious Lilies, Going Coastal (2 art per day), Gorgeous Germany, Green!, Greenwich Mean Time, Happy Haven Photography Limit 2 images per day, Harbour Life, Heritage in Stone, Historic Churches, Historic Landmarks of Europe, History, Horizons, Horse and Rider , Human and Nature, I Love Birds, Icy Cold, If it doesn't belong, In the Pink, Inverted World, Ireland , Iron Horses Old and New, Italy and all Things Italian, Just Brown, Just Lines, Lakes and Inland Waterways- 1 per day, Landscape and Abstract Photography, Light and Reflection 1/24, Light up My Life (all about lamps), LISBON and Surroundings, Live, Love, Dream, Made In Digital, Metallic Junktion, Mills & Mines, Mood & Ambience - Strictly Photos, Mountains and Mountain Light, National Parks of the World, Nautical, Night Photography, Nostalgic Art and Photography, Numbers One to a Trillion, One Single Flower On Show.. Upload 2 per day, Only Orchids!, Out of the Blue, Photographic France, Photography 101, Photography in Finland, Portugal, Proteas, Leucadendron, Leucospermum, Orothamnus & Serruria, Public Art, Purple Passion Gallery. 2 per day, Rain Drops , Religious Art & Photography, Rhododendrons, Rivers and Streams, Room With A View, Rural Around The Globe, Rustic, Scenic Scandinavia, SEA, SEAGULLS, Seasonal 'Scapes, Shadows & Reflections, Shots in the Fog, Signs, Simply Horses, Simply the Best, Skyscapes, Snow Days, Snow! Glorious Snow!! 2 a day, Something Fishy, Spring Blooms - 2 per day, Statues and Such, Still Life ~ Food Photography and Paintings, Streetscapes, STUNNING SWITZERLAND, Style! Class! Elegance! Excellence!, Sun Rays, Sunrise, Sunset, Sweet Tooth, The Addicted Photographer►2 Per Day◄, The Birds, The Dutch Connection, The Eyes Have It, The Scavenger Hunt, The true beauty, Timber and Water, Top Shelf Wildlife & Nature Art, Trains, Trams and Buses, Trees , Tulips, Unique Buildings Of The World, Vanishing Points, Vibrant and Vivid Color, Waterfall Photography, Waterfowl, Waves, Which way?, Windmills & Ferris wheels, Windows and Doors, World's Cruise Ships, You're Accepted, Your Magic Place and à EUROPA!.
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