Editing IBM System/360 (section)

===Influential features===
[[Image:IBM 360 20 TROS.jpg|thumb|[[IBM System/360 Model 20]] [[microcode]] [[transformer read-only storage]] (TROS) module. A Model 40 (TROS) module is about 50% longer than this to make room for more microcode bits in the word.]]

The System/360 introduced a number of industry standards to the marketplace, such as:
* The [[8-bit computing|8-bit]] [[byte]] (against financial pressure during development to reduce the byte to 4 or 6 bits), rather than adopting the [[IBM 7030|7030]] concept of accessing bytes of variable size at arbitrary bit addresses.
* Byte-[[memory address|addressable]] memory (as opposed to bit-addressable or word-addressable memory)
* [[32-bit computing|32-bit]] [[integer (computer science)#Words|words]]
* The [[Bus and Tag]] I/O channel standardized in FIPS-60<ref>{{citation|id=FIPSPUB60|publisher=National Technical Information Service|title=I/O Channel Interface|author=NTIS|year=1979}}</ref>
* Commercial use of [[microcode]]d CPUs
* The [[IBM hexadecimal floating-point|IBM hexadecimal floating-point architecture]]<ref>{{Cite journal |title=Architecture and software support in IBM S/390 Parallel Enterprise Servers for IEEE Floating-Point arithmetic |date=1999 |doi=10.1147/rd.435.0723 |url=https://ieeexplore.ieee.org/document/5389154 |last1=Abbott |first1=P. H. |last2=Brush |first2=D. G. |last3=Clark |first3=C. W. |last4=Crone |first4=C. J. |last5=Ehrman |first5=J. R. |last6=Ewart |first6=G. W. |last7=Goodrich |first7=C. A. |last8=Hack |first8=M. |last9=Kapernick |first9=J. S. |last10=Minchau |first10=B. J. |last11=Shepard |first11=W. C. |last12=Smith |first12=R. M. |last13=Tallman |first13=R. |last14=Walkowiak |first14=S. |last15=Watanabe |first15=A. |last16=White |first16=W. R. |journal=IBM Journal of Research and Development |volume=43 |issue=5.6 |pages=723–760 |url-access=subscription }}</ref>
* The [[EBCDIC]] character set<ref group=NB>In System/360 architecture bit 12 of the [[program status word]] (PSW) controlled selection between the [[EBCDIC]] or a then proposed [[ASCII|ASCII-8]] mode signed decimal data. The proposed ASCII-8 [[ANSI]] standard was in the approval process when System/360 was announced but it was subsequently rejected and no ASCII peripheral devices were made available. This capability was not included in System/370; bit 12 of the PSW was redefined to switch between System/360 (BC mode) and System/370 (EC mode) PSW format.</ref>
* [[9-track tape|Nine-track magnetic tape]]