Computer System - OVERVIEW 7/25/03 Computer System - OVERVIEW Print multiple handouts on one page Select File – Print Edit the following selections to read: Select the OK button Reference: Giesecke et al. Chapter 2 Introduction to Computer Systems

Parts of a Computer System 7/25/03 Parts of a Computer System CPU Input Output Storage Devices Operating System Software (latest processor) Ask them – what is the latest CPU? Changes constantly – then click on link Introduction to Computer Systems

CPU Central Processing Unit receives data and manages and controls the functions of the CAD system. It is analogous to a human’s brain, which interprets data and controls motor functions. 2000: Pentium® 4 Processor

CPU – Timeline ’48 –Transistor (Bell Labs) 7/25/03 CPU – Timeline ’48 –Transistor (Bell Labs) 70’s – CPU (Intel) Birth of PC 70’s – Present –Dramatic increase in processor speed (Moore’s Law): Ted Hoff Inventor Introduction to Computer Systems

Input Devices Keyboard Mouse Digitizer Trackball Light Pen Touch Screen Voice

Keyboard ESC – Escape key CTRL – Control Key ALT – Alt key Function Keys Backspace – deletes anything to the left of the cursor Forward Slash Back Slash Delete – deletes anything to the right of the cursor Nums Lock – types numbers when using keypad Nums Lock, Caps Lock, & Scroll Lock – green light means lock is on Caps Lock –all letters will be typed as capital letters

Mouse Middle Button –can be rolled or clicked, depending on the software Left Button – select entity, menu selection, icon, etc. Right Button – sometimes works like the Enter key and sometimes displays a short cut menu Mouse Pad

Output Devices Monitors Printers Plotters Machining Centers Rapid Prototyping Other Software Packages, such as ANSYS and Mold Flow!

Output Devices cont’d. Printer A size paper drawer (8-1/2” x 11”) On/Off switch on side B size paper drawer (11” x 17”) Control Buttons and Prompt Window. To Cancel a job – press the Cancel button. If Offline – press the green button

Output Devices cont’d. Manufacturing CAD Model Import into CAM package 7/25/03 Output Devices cont’d. Manufacturing CAD Model Import into CAM package Haas: VF-11/50 Vertical Machining Center (30 hp spindle w/ 120” x 40” x 20” travel) Haas: Mini Mill (7.5 hp spindle w/ 16” x 12” x 10” travel) Talk about how machine shops have saved time and money by CAD/CAM. How were parts made in the old days – before CAM, before CNC?? Post Process Source: http://www.haascnc.com Download g-code into machine tool Mori Seiki: SL-603 Turning Center Mori Seiki: SL-154 Turning Center Introduction to Computer Systems Source: http://www.moriseiki.com

Rapid Prototyping w/ 3D Printer 7/25/03 Output Devices cont’d. Rapid Prototyping w/ 3D Printer Full Scale Engine Block printed on the Z810 System (18"x19"x13") Z-Corp, model Z810 System, Build Volume = 20” x 24” x 16” Forsman’s METBD 410 CAD Model Import into 3D printer as STF file Talk briefly about Dave Forsman’s Course METBD 410 (ref link above). Adv of rapid prototype? Facilitates design iterations (form and fit only). Produce physical prototype (starch/plaster) Introduction to Computer Systems Source: Z-Corp http://www.zcorp.com/

Storage Devices Fixed disk drive or hard drive (up to 120 GB+) 7/25/03 Storage Devices Fixed disk drive or hard drive (up to 120 GB+) Floppy disk drive (1.44 MB) USB (64 MB – 512 MB) CD-ROM drives (800 MB) Server (P: drive) Optical drives (1 GB) Magnetic tape (1+ GB) Zip drives (100 MB) Super Disk (120 MB) Introduction to Computer Systems

Storage Devices cont’d. 7/25/03 Storage Devices cont’d. Floppy Drive CD ROM Drive Memory Stick in USB port Introduction to Computer Systems

Access Storage Devices 7/25/03 Access Storage Devices Start – Search – For Files or Folders… – Folders button + Means Collapsed - Means Expanded CD ROM Drive Hard drive Floppy Drive P: drive – your personal space V: drive – courseware Data Disk Introduction to Computer Systems

7/25/03 Operating System An operating system is a set of instructions that control the operation of the computer and its peripheral devices. Operating systems control the execution of specific program. Operating systems provide support for activities like input and output (I/O) Examples: Windows XP, 2000 or NT, UNIX, OS2, Linex Talk about how important it is for engineers to not only know CAD package but basic operating system as well. Example: file management and organization is extremely important. Wasting time searching for files is non value-added time!! Introduction to Computer Systems

Stand Alone vs Networked 7/25/03 Stand Alone vs Networked Stand Alone Networked Introduction to Computer Systems

Stand Alone A self sufficient computer 7/25/03 Stand Alone A self sufficient computer All software must be loaded onto hard drive or run off a floppy. Printer, scanner, etc., connected directly to computer. Introduction to Computer Systems

Networked Behrend Computer Labs 7/25/03 Networked Behrend Computer Labs Multiple computers connected to one central location by cables, routers, etc. One copy of the software on the server. Site license controls number of copies that may be downloaded at one time. Initial software downloads times may take up to 40 minutes – depending on the software May connect to a printer in any computer center lab Store data (your files) on computer center server, i.e., your P: drive. Freshman allocated 10 MB. Introduction to Computer Systems