This is where the main difference comes in. A PVR stores files on a hard drive, and you can keep these for as long as you want. A DVR temporarily stores files on a smaller hard drive, and if you want to keep the files you need to burn them onto an external source such as a DVD. What does PVR recording mean?A PVR stands for Personal Video Recorder, sometimes also called the DVR Digital Video Recorder.

Apple iPhone 4 vs Blackberry Torch 9800 The Blackberry is a tried and tested product line for businesses but it has been losing ground to other smartphones. The Torch 9800 is an attempt to provide touch screen functionality, which is the technology in current demand, while still providing Blackberry features. Comparing it to the iPhone 4, there are certainly many differences between the two. A feature that is lacking on the iPhone 4 is the physical keyboard hidden in the rear half of the slider mechanism.

Aztec vs Mayan   Difference between Aztec and Mayan can be simply put as two different civilizations in Mesoamerica. The Mayans came first to the modern-day Mexico. The Aztecs came into play after some time later. Mayan civilization is often associated with knowledge as they had a writing systems, astronomical knowledge, etc. However, Aztec civilization is always associated with wars as they were a group of people, who liked getting into fights very much.

Netbook vs Notebook When laptops first arrived onto the scene, everyone thought that they signaled the death of the ubiquitous desktop. After all, who wouldn’t want to be portable and carry his computing power along with him. But desktops have remained intact, and rather laptop has given way to smaller versions of ultra portable computers that are being labeled as notebooks and netbooks. They have added to the portability factor being smaller and lighter than a standard laptop.

Prokaryotic transcription and translation occur simultaneously in the cytoplasm, and regulation occurs at the transcriptional level. Eukaryotic gene expression is regulated during transcription and RNA processing, which take place in the nucleus, and during protein translation, which takes place in the cytoplasm. How is gene expression in prokaryotes and eukaryotes similar?How are Prokaryotic and Eukaryotic Gene Expression similar? Both require the participation of regulatory proteins, some of which (transcription factors) attach directly to DNA sequences.

Oxidation and reduction in terms of oxygen transfer Oxidation is the gain of oxygen. Reduction is the loss of oxygen. What is oxidation and reduction in biology?Reactions involving electron transfers are known as oxidation-reduction reactions (or redox reactions). You may have learned in chemistry that a redox reaction is when one molecule loses electrons and is oxidized, while another molecule gains electrons (the ones lost by the first molecule) and is reduced.

With the world moving at a fast pace, most parents nowadays tend to face the same kind of dilemma. A very common question comes into all of their minds. “Where should I keep my child when I am out working?”. Some people around them recommend daycare facilities, while the rest recommend preschools. Well, as a parent, you should know the difference between daycare and preschool before you make such a huge decision.

Red vs Green Algae   Algae are a group of organisms showing high diversity among them. They are grouped into one, based on the fact that they also can perform photosynthesis like plants do. These organisms mostly reside in aquatic environments. In the classification, we find 3 main classes of algae; namely, Red algae, Green algae, and Brown algae. All the algae are eukaryotes having double membrane bound organelles and show complex cellular organization when compared to bacteria.

Main Difference – Golgi Bodies vs Mitochondria Golgi bodies and mitochondria are vital organs found in the eukaryotic cells. Golgi bodies are made up a series of folded membranes. They are a part of the endomembrane system of the cell. Mitochondria are bean-shaped organelles surrounded by double membranes. The surface of the inner membrane is increased by the membrane folds known as cristae. The main difference between Golgi bodies and mitochondria is that Golgi bodies direct the flow of substances such as proteins to their destinations whereas mitochondria provide a location for the rearmost events of aerobic respiration.

Key Difference – Folktale vs Legend   Folktale and legends are two varieties of stories belonging to a culture between which some difference can be identified. As children, we all have heard of folktales and legends of heroes and warriors. However, these are not the same. The key difference between folktale and legend is that while folktales are stories that are passed down from one generation to another, legends are truly inspired from historical events.