Cloud service providers invest in the necessary infrastructure and management systems, and in return receive a time-based or usage-based fee from end users [17]. Cloud computing is emerging today as a commercial infrastructure that eliminates the need for maintaining expensive computing hardware.
Area: 9,400,000 sq.km. Population: 2.5 million people. Population density: o.4/sq. km or less than 1 person per sq mi. Sahara is the largest non-polar desert and the hottest of the sub-tropical deserts in the world. The desert can be estimated nearly as large as USA or China. Sahara covers most of the north-Africa under its belt by bordering with Red Sea, touching Mediterranean coasts to Atlantic shelves.
Kalahari Desert. 1. Sahara Desert. The Sahara Desert is the world's largest hot desert; it stretches over 3,500,000 square miles in Northern Africa. The Great Victoria Desert stretches across 163,900 square miles in both South Australia and Western Australia. Summers in the Arabian desert are quite intense; temperatures can reach as high as 129 Â°F.