Havana shows the sign of years of embargo
Grethel is one of the lucky ones.
As a translator working in a government department, she enjoys access to the internet via a computer at work.
She is one of the few in Cuba who are wired.
The US estimates only 60,000 of the island's 11 million people have internet accounts.
There are a few computers in evidence in Havana. Outside the capital, in the rural areas, the problem is even worse.
"There is no chance of me owning a computer," said Grethel, though she adds that she does not mind. "I love the revolution and I love my job."
Politics vs economics
In any case, buying a computer has to be authorised by the Ministry of Internal Commerce.
The authorities have seized computers from government opponents, preventing the internet from posing a serious political threat.
Cuba blames the shortage of computers and internet connections on economic, rather than political, constraints.
The average national monthly wage is $12 a month.
"We are an underdeveloped country which fights everyday just to feed and clothe itself, the internet means nothing to the majority of people," said Albelardo Mena, curator of the National Museum of Havana.
Few phones
Foreign investment has gone into modernising the island's antiquated telephone network.
But in 2000 it still only had 4.4 phones per 100 people. And even for those with phone lines, logging onto the internet is painfully slow.
Ironically Cuba has one of the highest literacy levels in the world, taking education very seriously.
In the long term, Cuba, along with Argentina, Chile and Mexico, aims to create its own operating system in Spanish to replace Windows from the US software giant Microsoft.
At the moment, all the software in government departments is from Microsoft and many of the computers are American-made.
The state buys them in bulk from Canada, Italy and Nordic countries as, due to the US economic embargo, Cuba cannot directly purchase American goods.
Officials deny the software they use is pirated.
"I like [Microsoft chairman] Bill Gates, but his company is made of people," explained Carlos Mas Zabala, the director of the Centre for Information and Applied Systems of Culture.
We are people too, and we are sharing what they are creating as part of humanity, because we are part of humanity too."