Advanced Audio Coding (AAC) Lossy audio compression format. Standardized in April 1997as the successor to MP3 files.  Wikipedia         
Apple Tech company. Founded by Steve Jobs and Steve Wozniak on April 1, 1976.  Wikipedia         
Digital Visual Interface (DVI)
| DVI-I | (integrated, combines digital and analog in the same connector; digital may be single or dual link) |
| DVI-D | (digital only, single link or dual link) |
| DVI-A | (analog only) |
IBM Personal System/2 (PS/2)  Released April, 1987. Introduced OS/2 the PS/2  Wikipedia         
Intel 8080 8-bit Microprocessor developed by Intel. Introduced in April, 1974.  Wikipedia         
K6 Microprocessor from AMD. Introduced April 1997.  Wikipedia         
Message-Digest Algorithm 5 (MD5) Widely used hash function producing a 128-bit hash value. Used as a checksum to verify data integrity, but only against unintentional corruption. Initially designed as a cryptographic hash function but its security has been compromised due to extensive vulnerabilities. Designed by Ronald Rivest in 1991 to MD4. Published in RFC 1321 April 1992.  Wikipedia         
NVIDIA  Founded April 1993.  Website  Wikipedia       
Opera Web browser developed by Opera Software. First released April 1995.  Website  Wikipedia       
Pascal GPU microarchitecture from NVIDIA. Named after Blaise Pascal. First introduced April 2016 with the GP100 chip.  Wikipedia         
Transport Layer Security 1.1 (TLS 1.1)  Defined in RFC 4346 April 2006.  Website  Wikipedia       
USB 2.0 (aka: High Speed) Up to 480Mbps (60MBps) transfer rate. Max cable length is 5 meters (30 meters if using the maximum of five hubs). Released in April 2000.  Wikipedia