There are a lot more differences than similarities between ionic and molecular compounds, but let's start with the similarities. Both have a non-metal in them and both compounds are formed by the atoms trying to achieve a state of 8 (or 2) electrons in their valence (outer) shell. The differences are numerous and basically define the two branches of chemistry, inorganic and organic. Ionic compounds are inorganic. They are formed by combining metals (+ ions) with nonmetals (- ions). They are soluble in water (polar), conduct electricity in solution, and have high melting (freezing) and boiling points. Organic compounds are molecular also called covalent.
The Raspberry Pi is a low-cost credit-card sized single-board computer. The Raspberry Pi was created in the UK by the Raspberry Pi Foundation. The Raspberry Pi Foundation's goal is to advance the education of adults and children, particularly in the field of computers, computer science and related subjects..
The original Raspberry Pi is based on the Broadcom BCM2835 system on a chip (SoC), which includes an ARM1176JZF-S 700 MHz processor, VideoCore IV GPU, and was originally shipped with 256 megabytes of RAM, later upgraded (models B and B+) to 512 MB.