Computer engineering

[Vacuum tube mainframe] open for a history lesson, one should go right here.
[DEC] Digital Equipment Corporation.
[8 bit microcontroller] see also: Fairchild F8, RCA 1802, Motorola 6809, MOS 6502, Zilog Z80, Intel 8088
[x86] including the NEC v20, see ["], 80286, 386, 486, Pentium, PPro
[Motorola] see also [ColdFire] which is the last standing m68k chip.  see also [AAPL] for Mac hardware
[AMD] American Micro Devices.
[Intel] see also [IBM] for PC hardware.
[ARM] you might have a cell with that in it.  probably "secured by knox."  Xiaomi, AAPL, Samsung, Huawei, Puri.sm, GOOG, ZTE, and Motorola make them.
[RISCv] the first open architecture, highly academic, first produced at UCB.
[IBM POWER] as used by [1] and you can ask me for a built copy.