We are living in a post PC world, a world in which people no longer give PCs and laptops dominant roles for accessing the internet in terms of routine, frequency and activities.

There are four recent pieces of news that attest to this.

Only 7% of Apple's sales are Macs

Apple released its third quarter 2012 results on Tuesday. It showed that during the quarter it sold only 2% more desktops and laptops than it did during the same quarter in 2011. Sales of iPhones on the other hand climbed 28%, and sales of iPads climbed a massive 84%. What’s more, for every one desktop or laptop Apple sold, it sold over four iPads and over six iPhones.

Smartphone data usage doubles

Three has just released a couple of findings from a study of its smartphone customers. Last summer, the average monthly data of its smartphone customers was 450MB. In less than a year, this has almost doubled to 1.1GB. Secondly, 95% of Three’s smartphone customers access the internet on their smartphones on a daily basis. It shows just how much people have integrated internet access via smartphones into their everyday lives.

People substituting PCs and laptops for smartphones and tablets

Ofcom released its annual Communications Market Report last week. It shows that Smartphone ownership in the UK rose to 39% of UK adults during the first quarter of this year, up 44% over 2011.

It also shows that tablet ownership rose nearly six fold, to reach 11% of UK households. Seventy-four per cent of tablet owners say they go online on their tablet every day, or most days, whilst 44% of smartphone owners say access the internet regularly.

The activities that smartphone users claim their handset is substituting for most are: watching video clips on a PC or laptop (51%), instant messaging from a PC or laptop (47%), taking photos with a camera (43%), accessing general news from a PC or laptop (39%) and social networking from a PC or laptop (37%).

In terms of tablets, Around four in ten (37%) say they browse the internet more since owning a tablet, while around one quarter (23%) say they do more social networking. People are also using tablets to replace some laptop and desktop behaviours. Thirty seven per cent use their laptop less since owning a tablet, and one third (33%) use their desktop PC less.

Smartphone processor profits and shipments climb

ARM processors are used in 90% of the world’s smartphones. It too released its most recent quarter figures this week. They show that it shipped 2 billion chips during the quarter; revenues were up 15%, and profits climbed 23%.

In terms of the whole smartphone market, a phenomenal 144.9 million smartphones were shipped in 1Q12 compared to 101.7 million units in 1Q11.This was an astonishing climb of 43% year over year, according to IDC