Monday, April 23, 2007

25 years of the Sinclair Spectrum


I just read that the Sinclair Spectrum turned 25 today. Most of you probably don't know what it was. It was a tiny computer, which connected to a TV for output, had a Zilog ZX-80 microprocessor, 48k of RAM (yes that is a K, as in kilobytes), no hard disk, and loaded (and saved) programs from a cassette tape connected through an audio cable. You could actually hear the programs, they sounded like a modem. The keyboard was made of rubber, and each key represented 3 different things: a letter, a symbol (or number), and a BASIC instruction.

As you can guess, it was my first computer. I bought it in London for about 300 USD.
I read the complete manual on my flight back home (it included a BASIC tutorial, as well as the famous PEEK and POKE instructions, which let you write directly into the memory).

Back home I went on to learn about microprocessors, programming, etc., and since then I simply never stopped.

5 comments:

oakleyses said...

michael kors outlet online, christian louboutin uk, tory burch outlet, coach outlet, polo ralph lauren outlet online, oakley sunglasses, jordan shoes, oakley sunglasses, replica watches, longchamp outlet, gucci handbags, christian louboutin shoes, chanel handbags, michael kors outlet, prada handbags, kate spade, polo outlet, tiffany jewelry, michael kors outlet, tiffany and co, true religion outlet, coach purses, longchamp outlet, nike free, michael kors outlet online, christian louboutin outlet, kate spade outlet, burberry outlet, christian louboutin, ray ban sunglasses, nike outlet, burberry handbags, coach outlet, nike air max, ray ban sunglasses, true religion outlet, oakley sunglasses wholesale, prada outlet, michael kors outlet store, longchamp outlet, coach outlet store online, michael kors outlet online, true religion outlet, nike air max

oakleyses said...

nike huaraches, north face, abercrombie and fitch uk, burberry pas cher, nike air max, polo lacoste, guess pas cher, louboutin pas cher, true religion jeans, nike tn, michael kors pas cher, nike air max uk, hollister uk, nike roshe, michael kors, nike blazer pas cher, nike air force, oakley pas cher, new balance, ray ban pas cher, converse pas cher, longchamp pas cher, lululemon canada, sac hermes, jordan pas cher, ralph lauren uk, timberland pas cher, nike trainers uk, michael kors outlet, hogan outlet, north face uk, nike free run, nike air max uk, sac vanessa bruno, mulberry uk, nike roshe run uk, hollister pas cher, longchamp uk, nike free uk, vans pas cher, air max, ray ban uk, polo ralph lauren, sac longchamp pas cher

oakleyses said...

soccer shoes, vans, ghd hair, reebok outlet, abercrombie and fitch, giuseppe zanotti outlet, north face outlet, hollister clothing, bottega veneta, wedding dresses, baseball bats, mont blanc pens, mcm handbags, oakley, new balance shoes, nike air max, insanity workout, beats by dre, ralph lauren, babyliss, lululemon, nike roshe run, timberland boots, p90x workout, hollister, soccer jerseys, hollister, celine handbags, vans outlet, nfl jerseys, louboutin, chi flat iron, iphone 6 cases, herve leger, asics running shoes, valentino shoes, nike air max, converse, jimmy choo outlet, instyler, ferragamo shoes, north face outlet, hermes belt, mac cosmetics

oakleyses said...

uggs on sale, uggs outlet, ugg, louis vuitton, converse outlet, swarovski crystal, links of london, ugg uk, ray ban, lancel, karen millen uk, louis vuitton outlet, louis vuitton, juicy couture outlet, marc jacobs, louis vuitton outlet, ugg,uggs,uggs canada, juicy couture outlet, louis vuitton, supra shoes, gucci, louis vuitton outlet, louis vuitton, wedding dresses, pandora charms, louis vuitton, pandora jewelry, louis vuitton, louis vuitton, ugg boots, ugg,ugg australia,ugg italia, uggs outlet, swarovski, pandora uk, ugg pas cher, ugg boots, hollister, thomas sabo, toms shoes, doke gabbana, coach outlet, montre pas cher, replica watches

Wenhao Guo said...

ddddd0928monster beats, http://www.beats-headphones.in.net/
mizuno running, http://www.mizunorunningshoes.us/
michael kors outlet,michael kors outlet online,michael kors,kors outlet,michael kors handbags,michael kors outlet online sale,michael kors handbags clearance,michael kors purses,michaelkors.com,michael kors bags,michael kors shoes,michaelkors,cheap michael kors
hollister,hollisterco,hollister clothing,hollister clothing store,hollister kids,hollister co
supra sneakershttp://www.suprashoes.us.com
tiffany jewelry, http://www.tiffanyandco.in.net/
abercrombie barcelona,abercrombie spain,hollister spain,abercrombie fitch spain
michael kors outlet store, http://michaelkors.outletonlinestores.us.com/
north face jackets, http://www.thenorthfaceclearances.us.com/
ugg boots clearance, http://www.uggbootsclearance.in.net/
prom dresses, http://www.cheap-weddingdresses.net/
golden state warriors, http://www.warriorsjersey.com/
oklahoma city thunder, http://www.thunderjerseystore.com/
tommy hilfiger polo shirts, http://www.tommyhilfigers.net/
tory burch sandals, http://www.toryburchshoesoutlet.com/
abercrombie and fitch,abercrombie and,abercrombie,abercrombie kids,abercrombie fitch,abercrombie.com
coach outlet online, http://www.coachoutletstoreonline.in.net/
babyliss hair dryer, http://www.babyliss.us.com/
michael kors outlet store, http://www.michaelkorsoutletusa.net/
michael kors outlet store, http://www.michaelkorsoutletonlinstore.us.com/