Several generations of Raspberry Pis have been released and all models feature a Broadcom system on a chip (SoC0 with an integrated ARM-compatible central processing unit (CPU) and on-chip graphics processing unit (GPU).
Though Raspberry Pi is a series of small single-board computers, it is suitable to promote the teaching of basic computer science in school and in developing countries.
In celebration of its eighth anniversary, Raspberry Pi Foundation upgrades its recently launched product Raspberry Pi 4, adding more RAM for a very low price. Raspberry Pi 4 was first released in June 2019.
For the same price, $35, Raspberry Pi 4 Model B is now having a 2 GB RAM instead of 1 GB RAM. Its specification includes:
- Broadcom BCM2711, Quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz
- 1GB, 2GB or 4GB LPDDR4-3200 SDRAM (depending on model)
- 4 GHz and 5.0 GHz IEEE 802.11ac wireless, Bluetooth 5.0, BLE
- Gigabit Ethernet
- 2 USB 3.0 ports; 2 USB 2.0 ports.
- Raspberry Pi standard 40 pin GPIO header (fully backward compatible with previous boards)
- 2 × micro-HDMI ports (up to 4kp60 supported)
- 2-lane MIPI DSI display port
- 2-lane MIPI CSI camera port
- 4-pole stereo audio and composite video port
- 265 (4kp60 decode), H264 (1080p60 decode, 1080p30 encode)
- OpenGL ES 3.0 graphics
- Micro-SD card slot for loading operating system and data storage
- 5V DC via USB-C connector (minimum 3A*)
- 5V DC via GPIO header (minimum 3A*)
- Power over Ethernet (PoE) enabled (requires separate PoE HAT)
- Operating temperature: 0 – 50 degrees C ambient
According to Raspberrypi.org, the Raspberry Pi 4 has undergone extensive compliance testing and meets a number of regional and international standards. To date, Raspberry Foundation has already sold over 30 million devices.