PlayStation 1

The PlayStation (PS1) featured a 33.87 MHz MIPS R3000A-compatible 32-bit CPU, 2 MB of main RAM and 1 MB of video RAM, a custom 3D graphics processor capable of 180,000 polygons per second, and a 2x speed CD-ROM drive. It also included 24-channel ADPCM sound, support for up to 16.7 million colours, and resolutions from 256x224 to 640x480 pixels.  

Here are the key technical specifications of the original PlayStation:

CPU (Processor) 

• Type: MIPS R3000A-compatible 32-bit RISC CPU (MIPS R3051)
• Clock Speed: 33.8688 MHz
• Cache: 4 KB instruction cache, 1 KB data cache

Memory 

• Main RAM: 2 MB
• Video RAM (VRAM): 1 MB

Graphics

• Polygon Performance: 180,000 polygons per second (flat-shaded), and 360,000 per second with flat shading. 
• Color Depth: Up to 16.7 million true colours. 
• Sprite Engine: Capable of displaying 4,000 sprites and 180,000 polygons per second. 
• Video Compression: MDEC (Motion Video Decoder) integrated into the CPU for full-motion video playback. 
• Frame Buffer: 1024x512 framebuffer. 

Audio 

• Sound Chip: Custom 16-bit SPU (Sound Processing Unit)
• Channels: Up to 24 sound channels.
• Sampling Rate: Up to 44.1 kHz.
• Features: MIDI sequencing, digital reverb, pitch modulation, and looping.

Storage 

• Drive: 2x speed CD-ROM drive
• Capacity: 660 MB maximum storage

Video Output

• Resolutions: From 256×224 to 640×480 pixels. 
• Connectivity: AV Multi Out port (Composite, S-Video, and RGBS). 

Other

• Memory Cards: Two slots for 128 KB flash memory save cards. 
• Connectivity: Serial I/O port for the Link Cable, allowing console connection for multiplayer games.