powerpoint presentation on latest input and output devices

... stream, and conversion specifications, each of which causes conversion and printing of the next successive argument to printf. Each conversion specification begins with a % and ends with a conversion ... Many programs read only one input stream and write only one output stream; for such programs, input and output with getchar, putchar, and printf may be entirely adequate, and is certainly enough ... library might convert carriage return and linefeed to newline on input and back again on output. The simplest input mechanism is to read one character at a time from the standard input, normally...

Ngày tải lên: 30/09/2013, 06:20

Ngày tải lên: 23/03/2014, 00:20

Ngày tải lên: 01/08/2014, 09:21

... function Home emê Del Ins Pgdn nn caplock sptsrn Dơn F2 Dơn Unit 7 input devices and output devices. I - input devices. A hardware device that sends information into the CPU. Without any input devices ... peripheral input device that looks similar to a control device connected to a computer that the user holds and moves to control actions on the screen especially in video gams. Microphone A microphone ... is used to move the cursor around on the monitor and for many other functions. This mouse has three buttons and a wheel to make actions faster Scanner display and adjust the characteristics of...

Ngày tải lên: 05/07/2013, 01:26

Ngày tải lên: 07/09/2013, 13:02

... people taking part in the conversation and this text including two different parallel conversations: the conversation of Ben on the phone and the other among Amy, Holly, Ben and Lance, the barman. ... cohesive relations, form both reference, on the one hand, and substitution and ellipsis, on the other. It does not function to remind the reader of previously mentioned entities, actions and state ... functions of tone Traditionally, the description on the intonation of communicative functions is associated with the glide down, glide up, take off and dive. A falling tone is by far the most common...

Ngày tải lên: 29/01/2014, 10:33

Ngày tải lên: 29/01/2014, 10:33

Ngày tải lên: 18/02/2014, 04:20

Ngày tải lên: 06/03/2014, 21:20

Ngày tải lên: 09/03/2014, 00:20

Ngày tải lên: 18/03/2014, 02:20

Ngày tải lên: 26/03/2014, 14:07

Ngày tải lên: 26/07/2014, 17:20

... DOES THE WEB APPLICATION  REQUIRE AUTHENTICATION OF THE  USER?  Many Web applications require another server  authenticate users  Examine how information is passed between the  two servers  Encrypted channels  Verify that logon and password information is  stored on secure places  Authentication servers introduce a second target 44 37 34 APPLICATION VULNERABILITIES  COUNTERMEASURES (CONTINUED)  Top­10 Web application vulnerabilities (continued)  Remote administration flaws  Attacker can gain access to the Web server through the  remote administration interface  Web and application server misconfiguration  Any Web server software out of the box is usually vulnerable  to attack  Default accounts and passwords  Overly informative error messages 32 16 WEB FORMS  Use the <form> element or tag in an HTML document  Allows customer to submit information to the Web server  Web servers process information from a Web form by  using a Web application  Easy way for attackers to intercept data that users  submit to a Web server 7 APPLICATION VULNERABILITIES  COUNTERMEASURES  Open Web Application Security Project (OWASP)  Open, not­for­profit organization dedicated to finding  and fighting vulnerabilities in Web applications  Publishes the Ten Most Critical Web Application  Security Vulnerabilities  Top­10 Web application vulnerabilities  Unvalidated parameters  HTTP requests are not validated by the Web server  Broken access control  Developers implement access controls but fail to test them  properly 29 USING SCRIPTING LANGUAGES  Dynamic Web pages can be developed using scripting  languages  VBScript  JavaScript  PHP 18 OPEN DATABASE CONNECTIVITY  (ODBC) (CONTINUED)  ODBC defines  Standardized representation of data types  A library of ODBC functions  Standard methods of connecting to and logging on to a  DBMS 24 WEB APPLICATION COMPONENTS  Static Web pages  Created using HTML  Dynamic Web pages  Need special components  <form> tags  Common Gateway Interface (CGI)  Active Server Pages (ASP)  PHP  ColdFusion  Scripting languages  Database connectors 6 APACHE WEB SERVER  Tomcat Apache is another Web Server program  Tomcat Apache hosts anywhere from 50% to 60% of all  Web sites  Advantages  Works on just about any *NIX and Windows platform  It is free  Requires Java 2 Standard Runtime Environment (J2SE,  version 5.0) 15 ON WHAT PLATFORM WAS THE WEB  APPLICATION DEVELOPED?  Several different platforms and technologies can  be used to develop Web applications  Attacks differ depending on the platform and technology used to develop the application  Footprinting is used to find out as much information  as possible about a target system  The more you know about a system the easier it is to  gather information about its vulnerabilities 45 OPEN DATABASE CONNECTIVITY  (ODBC)  Standard database access method developed by  the SQL Access Group  ODBC interface allows an application to access  Data stored in a database management system  Any system that understands and can issue ODBC  commands  Interoperability among back­end DBMS is a key  feature of the ODBC interface 23 48 UNDERSTANDING WEB APPLICATIONS  It is nearly impossible to write a program without bugs  Some bugs create security vulnerabilities  Web applications also have bugs  Web applications have a larger user base than standalone  applications  Bugs are a bigger problem for Web applications 5 DOES THE WEB APPLICATION  CONNECT TO A BACKEND DATABASE  SERVER? (CONTINUED)  Basic testing should look for  Whether you can enter text with punctuation marks  Whether you can enter a single quotation mark followed by  any SQL keywords  Whether you can get any sort of database error when  attempting to inject SQL 43 DOES THE WEB APPLICATION USE  DYNAMIC WEB PAGES?  Static Web pages do not create a security  environment  IIS attack example  Submitting a specially formatted URL to the  attacked Web server  IIS does not correctly parse the URL  information  Attackers could launch a Unicode exploit http://www.nopatchiss.com/scripts/ ... DOES THE WEB APPLICATION  REQUIRE AUTHENTICATION OF THE  USER?  Many Web applications require another server  authenticate users  Examine how information is passed between the  two servers  Encrypted channels  Verify that logon and password information is  stored on secure places  Authentication servers introduce a second target 44 37 34 APPLICATION VULNERABILITIES  COUNTERMEASURES (CONTINUED)  Top­10 Web application vulnerabilities (continued)  Remote administration flaws  Attacker can gain access to the Web server through the  remote administration interface  Web and application server misconfiguration  Any Web server software out of the box is usually vulnerable  to attack  Default accounts and passwords  Overly informative error messages 32 16 WEB FORMS  Use the <form> element or tag in an HTML document  Allows customer to submit information to the Web server  Web servers process information from a Web form by  using a Web application  Easy way for attackers to intercept data that users  submit to a Web server 7 APPLICATION VULNERABILITIES  COUNTERMEASURES  Open Web Application Security Project (OWASP)  Open, not­for­profit organization dedicated to finding  and fighting vulnerabilities in Web applications  Publishes the Ten Most Critical Web Application  Security Vulnerabilities  Top­10 Web application vulnerabilities  Unvalidated parameters  HTTP requests are not validated by the Web server  Broken access control  Developers implement access controls but fail to test them  properly 29 USING SCRIPTING LANGUAGES  Dynamic Web pages can be developed using scripting  languages  VBScript  JavaScript  PHP 18 OPEN DATABASE CONNECTIVITY  (ODBC) (CONTINUED)  ODBC defines  Standardized representation of data types  A library of ODBC functions  Standard methods of connecting to and logging on to a  DBMS 24 WEB APPLICATION COMPONENTS  Static Web pages  Created using HTML  Dynamic Web pages  Need special components  <form> tags  Common Gateway Interface (CGI)  Active Server Pages (ASP)  PHP  ColdFusion  Scripting languages  Database connectors 6 APACHE WEB SERVER  Tomcat Apache is another Web Server program  Tomcat Apache hosts anywhere from 50% to 60% of all  Web sites  Advantages  Works on just about any *NIX and Windows platform  It is free  Requires Java 2 Standard Runtime Environment (J2SE,  version 5.0) 15 ON WHAT PLATFORM WAS THE WEB  APPLICATION DEVELOPED?  Several different platforms and technologies can  be used to develop Web applications  Attacks differ depending on the platform and technology used to develop the application  Footprinting is used to find out as much information  as possible about a target system  The more you know about a system the easier it is to  gather information about its vulnerabilities 45 OPEN DATABASE CONNECTIVITY  (ODBC)  Standard database access method developed by  the SQL Access Group  ODBC interface allows an application to access  Data stored in a database management system  Any system that understands and can issue ODBC  commands  Interoperability among back­end DBMS is a key  feature of the ODBC interface 23 48 UNDERSTANDING WEB APPLICATIONS  It is nearly impossible to write a program without bugs  Some bugs create security vulnerabilities  Web applications also have bugs  Web applications have a larger user base than standalone  applications  Bugs are a bigger problem for Web applications 5 DOES THE WEB APPLICATION  CONNECT TO A BACKEND DATABASE  SERVER? (CONTINUED)  Basic testing should look for  Whether you can enter text with punctuation marks  Whether you can enter a single quotation mark followed by  any SQL keywords  Whether you can get any sort of database error when  attempting to inject SQL 43 DOES THE WEB APPLICATION USE  DYNAMIC WEB PAGES?  Static Web pages do not create a security  environment  IIS attack example  Submitting a specially formatted URL to the  attacked Web server  IIS does not correctly parse the URL  information  Attackers could launch a Unicode exploit http://www.nopatchiss.com/scripts/ ... DOES THE WEB APPLICATION  REQUIRE AUTHENTICATION OF THE  USER?  Many Web applications require another server  authenticate users  Examine how information is passed between the  two servers  Encrypted channels  Verify that logon and password information is  stored on secure places  Authentication servers introduce a second target 44 37 34 APPLICATION VULNERABILITIES  COUNTERMEASURES (CONTINUED)  Top­10 Web application vulnerabilities (continued)  Remote administration flaws  Attacker can gain access to the Web server through the  remote administration interface  Web and application server misconfiguration  Any Web server software out of the box is usually vulnerable  to attack  Default accounts and passwords  Overly informative error messages 32 16 WEB FORMS  Use the <form> element or tag in an HTML document  Allows customer to submit information to the Web server  Web servers process information from a Web form by  using a Web application  Easy way for attackers to intercept data that users  submit to a Web server 7 APPLICATION VULNERABILITIES  COUNTERMEASURES  Open Web Application Security Project (OWASP)  Open, not­for­profit organization dedicated to finding  and fighting vulnerabilities in Web applications  Publishes the Ten Most Critical Web Application  Security Vulnerabilities  Top­10 Web application vulnerabilities  Unvalidated parameters  HTTP requests are not validated by the Web server  Broken access control  Developers implement access controls but fail to test them  properly 29 USING SCRIPTING LANGUAGES  Dynamic Web pages can be developed using scripting  languages  VBScript  JavaScript  PHP 18 OPEN DATABASE CONNECTIVITY  (ODBC) (CONTINUED)  ODBC defines  Standardized representation of data types  A library of ODBC functions  Standard methods of connecting to and logging on to a  DBMS 24 WEB APPLICATION COMPONENTS  Static Web pages  Created using HTML  Dynamic Web pages  Need special components  <form> tags  Common Gateway Interface (CGI)  Active Server Pages (ASP)  PHP  ColdFusion  Scripting languages  Database connectors 6 APACHE WEB SERVER  Tomcat Apache is another Web Server program  Tomcat Apache hosts anywhere from 50% to 60% of all  Web sites  Advantages  Works on just about any *NIX and Windows platform  It is free  Requires Java 2 Standard Runtime Environment (J2SE,  version 5.0) 15 ON WHAT PLATFORM WAS THE WEB  APPLICATION DEVELOPED?  Several different platforms and technologies can  be used to develop Web applications  Attacks differ depending on the platform and technology used to develop the application  Footprinting is used to find out as much information  as possible about a target system  The more you know about a system the easier it is to  gather information about its vulnerabilities 45 OPEN DATABASE CONNECTIVITY  (ODBC)  Standard database access method developed by  the SQL Access Group  ODBC interface allows an application to access  Data stored in a database management system  Any system that understands and can issue ODBC  commands  Interoperability among back­end DBMS is a key  feature of the ODBC interface 23 48 UNDERSTANDING WEB APPLICATIONS  It is nearly impossible to write a program without bugs  Some bugs create security vulnerabilities  Web applications also have bugs  Web applications have a larger user base than standalone  applications  Bugs are a bigger problem for Web applications 5 DOES THE WEB APPLICATION  CONNECT TO A BACKEND DATABASE  SERVER? (CONTINUED)  Basic testing should look for  Whether you can enter text with punctuation marks  Whether you can enter a single quotation mark followed by  any SQL keywords  Whether you can get any sort of database error when  attempting to inject SQL 43 DOES THE WEB APPLICATION USE  DYNAMIC WEB PAGES?  Static Web pages do not create a security  environment  IIS attack example  Submitting a specially formatted URL to the  attacked Web server  IIS does not correctly parse the URL  information  Attackers could launch a Unicode exploit http://www.nopatchiss.com/scripts/...

Ngày tải lên: 17/09/2012, 10:44

... Propositions 17–20, measuring conical volumes. Interlude Propositions 21–2, finding proportions holding with a circle and an inscribed polygon. Section 2: Main treatise Chapter 5 Propositions 23–34, ... stretched to the limits and beyond: the mini-treatise at the end of the work relies essentially upon conic sections; the notion of the exponent is ad- umbrated in Proposition 8. Both treat geometrical ... are both concave in the same direction and either one of them is wholly contained by the other and by the straight <line> having the same limits as itself, or some is contained, and some...

Ngày tải lên: 21/09/2012, 11:00

... either conventional glue- label application or it can heat-seal labels in cut or roll form. The machine labels the front and back of round or odd-shaped con- tainers at speeds of 60 to 160 containers ... fabrication. The movement might be from one worker to another or from one part of a plant to another. Most of the conveyors shown here are components in processing machines. Both continuous and intermittently ... Bottle spac- ers ensure that containers remain 7 1 ⁄ 2 in. apart on the conveyor. Dual label- transfer turrets allow for the simulta- neous application of front and back labels. Sclater Chapter...

Ngày tải lên: 22/10/2012, 14:26

... index it, first in one direction and then another. Additional variation in output motion can be obtained by adjusting the angular positions of the output cranks. The key concept in this indexer ... of lobes L 3 and L 4 on the gears 3 and 4. In the drawings, L 3 = 2 and L 4 = 3. Any two lobes on the two gears (i.e., any two lobes of which one is on one gear and the other on the other gear) ... add a varying velocity component to conventional geneva motion. Fig. 1 With a conventional external geneva drive, a constant- velocity input produces an output consisting of a varying velocity period...

Ngày tải lên: 22/10/2012, 14:26

... radial position of the input and output shafts. They introduce a torque into the system while running, synchronizing the input and out- put shafts, or changing the timing of a cam on the output shaft. Rotation ... or similar constructions have possible applications wherever it is required to obtain greatly multiplied motions. These transmissions depend on cams, sector gears and pinions, levers and cranks, ... addition, it can transmit uniform motion around two bends. 170 Three-Dimensional Drives (continued ) Steel balls riding within spherical grooves convert a continuous rotary input motion into an output...

Ngày tải lên: 22/10/2012, 14:26

... radiation-resistant and can be used in high vacuum conditions or in environments where there is dirt and contamination. 185 TAUT BANDS AND LEADSCREW PROVIDE ACCURATE ROTARY MOTION Flexible bands ... position and, if desired, on to the flipped side to a deflection of about 140%. In most applications, the flat posi- tion is the limit of travel, and for deflec- tions beyond the flat, the contact ... anti-vibration suspension is required. With a tapered mandrel and torsion spring the effective number or coils decreases with torsional deflection. A four-bar mechanism in con- junction with a...

Ngày tải lên: 22/10/2012, 14:26

... ROLLER CHAINS AND THEIR ADAPTATIONS Various roller, side-plate and pin configurations for power transmissions, conveying, and elevating. STANDARD ROLLER CHAIN—FOR POWER TRANSMISSION AND CONVEYING SINGLE ... induction servomotor permits electronic or magnetic signal amplification. A rotating input avoids a lin- ear input and output of the simple windlass. Control and output ends of the mul- titurn bands ... (constant-velocity) line. The cycloidal is considered to be the best standard cam contour because of its low dynamic loads and low shock and vibration characteristics. One reason for these outstanding attributes is...

Ngày tải lên: 22/10/2012, 14:26