What Is A Word And How Many Bytes Are In It?

Home » How Many Bytes In A Word » What Is A Word And How Many Bytes Are In It?

Maybe your like

❄ ❅ ❆ ❄ ❅ ❆ ❄ ❅ ❆ ❄ ❅ ❆ ❄ ❅ ❆ ❄ ❅ ❆ ❄ ❅ ❆ Mainframe, MVS and zOS Discussion

Skip to content

What is a word and how many bytes are in it?

OS/VS COBOL, COBOL II, Enterprise COBOL for z/OS. OpenCOBOL and OOCobol. Forum rules Post Reply Previous topicNext topic
  • Print view
Search Advanced search 6 posts • Page 1 of 1 Binamra Registered Member Posts: 67 Joined: Mon Jun 17, 2013 10:42 pm

What is a word and how many bytes are in it?

  • Quote

Post by Binamra » Sat Jun 29, 2013 6:19 pm

What is a Word? Half-word? How many bytes are there in one word? Top User avatar Anuj Dhawan Founder Posts: 2827 Joined: Sun Apr 21, 2013 7:40 pm Location: Mumbai, India Contact: Contact Anuj Dhawan Website India

Re: What is a word and how many bytes are in it?

  • Quote

Post by Anuj Dhawan » Sun Jun 30, 2013 5:19 pm

In computing, "word" is a term for the natural unit of data used by a particular processor design. The mainframe "was" originally a half-word, full-word and double-word centric system. Said that - A full-word is four bytes in length, a double-word is eight bytes long and a half-word is two bytes long. Hope this helps. Thanks, Anuj Disclaimer: My comments on this website are my own and do not represent the opinions or suggestions of any other person or business entity, in any way. Top Sandy Registered Member Posts: 52 Joined: Sat Jun 15, 2013 1:07 pm India

Re: What is a word and how many bytes are in it?

  • Quote

Post by Sandy » Sat Jul 06, 2013 12:15 pm

So the memory will always "swap" only words and not "bits" of information? Top User avatar Robert Sample Global ModeratorGlobal Moderator Posts: 1909 Joined: Fri Jun 28, 2013 1:22 am Location: Dubuque Iowa United States of America

Re: What is a word and how many bytes are in it?

  • Quote

Post by Robert Sample » Sat Jul 06, 2013 6:34 pm

If you are talking about memory swaps (such as paging to / from auxiliary storage), the unit used is a page. And a page is 4096 bytes (4KB or 1024 words). Top Binamra Registered Member Posts: 67 Joined: Mon Jun 17, 2013 10:42 pm

Re: What is a word and how many bytes are in it?

  • Quote

Post by Binamra » Fri Aug 05, 2016 3:10 pm

Thanks Robert (and Sandy). I look at other post of yours Robert - that also helps. Top User avatar Robert Sample Global ModeratorGlobal Moderator Posts: 1909 Joined: Fri Jun 28, 2013 1:22 am Location: Dubuque Iowa United States of America

Re: What is a word and how many bytes are in it?

  • Quote

Post by Robert Sample » Fri Aug 05, 2016 6:25 pm

An update to my previous answer: z/OS now supports large frames for handling memory objects in the 64-bit address space (above the bar). Large frames are referenced in 1 megabyte (1,048,576 bytes) increments and are NOT paged with the older 4K pages. Top Post Reply Previous topicNext topic
  • Print view
Display: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by: AuthorPost timeSubject Direction: AscendingDescending 6 posts • Page 1 of 1

Create an account or sign in to join the discussion

You need to be a member in order to post a reply

Create an account

Not a member? register to join our community Members can start their own topics & subscribe to topics It’s free and only takes a minute

Register

Sign in

Remember me Login

Return to “IBM COBOL, GnuCOBOL (OpenCOBOL), OOCobol.”

Jump to
  • Announcements, Moderators & Guests
  • ↳ Site Announcements and Rules.
  • ↳ Downloads.
  • ↳ Applications
  • ↳ You are a Moderator.
  • ↳ Website Team
  • ↳ You are a Guest.
  • Languages
  • ↳ IBM COBOL, GnuCOBOL (OpenCOBOL), OOCobol.
  • ↳ TSO, ISPF & REXX (Do you still do CLIST?!).
  • ↳ Assembler & PL/I.
  • ↳ C, C++ and Java for Mainframes.
  • Databases
  • ↳ IBM DB2 and IMS DB/DC
  • ↳ Other Databases on zOS.
  • Batch and Online
  • ↳ JCL - Job Control Language.
  • ↳ CICS, Middleware and MQ Series.
  • ↳ SMS & VSAM and BDAM, BSAM, QSAM, BPAM, ISAM, OAM.
  • Utilities & Tools
  • ↳ File-AID and IBM File Manager.
  • ↳ IBM DFSort, ICETOOL, ICEMAN, ICEGENER.
  • ↳ SyncSort, SyncTool, SyncGener.
  • ↳ Testing Tools, Mainframe Application Testing, Abends Solution & QA.
  • ↳ Mainframe Performance, Capacity Planning and Software Cost.
  • ↳ Application Change Control Software for MVS, OS/390 and z/OS.
  • ↳ Scheduling Software for MVS, OS/390 and zOS
  • General
  • ↳ Introduce Yourself and Share Your IT Experience.
  • ↳ IT News.
  • ↳ IT Certificates.
  • ↳ Other Mainframe Topics, Off-Topics, FAQs.
  • ↳ Programming Algorithms.
  • ↳ zLinux, USS and other Operating Systems for Mainframes.
  • ↳ Suggestions & Feedback : About the website.
  • ↳ Polls and Ideas.
  • ↳ Personal Computers - Mainframe related tools.
  • ↳ Thought of the Day, General Talk & Jokes.
  • ↳ Private
  • Other Products for mainframes
  • ↳ AppStore & Mainframes, Simulators and Emulators.
  • ↳ Hercules, z390, zCOBOL, CBT Tape Files.
  • ↳ Tip Of the Day.
  • ↳ Follow up on Tips
  • ↳ Terminology is Important.
  • ↳ User Contributions.
  • ↳ COBOL
  • ↳ JCL
  • ↳ DB2
  • ↳ IMS DB/DC
  • ↳ VSAM
  • ↳ REXX
  • ↳ SAS
  • ↳ Compiler
  • ↳ Assembler
  • ↳ Miscellaneous
  • ↳ The Books and The History.
  • ↳ Company Profiles.
  • ↳ The People.
  • zDigital
  • ↳ zCloud Computing and related news
  • ↳ SAS & Cloud Computing.
  • ↳ DevOps for Mainframes and related news
  • ↳ Big Data for Mainframes and related news
  • Job Vacancies and Interview Questions.
  • ↳ Jobs
  • ↳ Jobs for Fresh Graduates.
  • ↳ Jobs for Experienced Professionals.
  • ↳ Ask for Job Guidance and referrals here.
  • ↳ Interview Questions.
  • Trash
  • YouTube (Opens in new tab)
  • Facebook (Opens in new tab)
  • X (Opens in new tab)

51,933,135 Page visits

Flat Style by Ian Bradley

Powered by phpBB® Forum Software © phpBB Limited

Privacy | Terms

Tag » How Many Bytes In A Word