MR. LAWSON'S - CLASSROOM - The Classes
Explain the main difference between computer hardware and software.Give examples of computer hardware and softwareSystem Software; operating system, device drivers, utilitiesWhich system software does the following?Switches the printer on and off and sends data to the presses files so that they can be sent in less time over the internetProvides a user interface so that users can easily create folders, copy files, move files.Keeps track of where to store data on the hard diskDetects and removes virusesUsed to supply instructions as to how to operate hardware attached to the computer such as printers and scannersHardware devices can be either internal hardware devices or external hardware devices. Explain the difference between the two?From the following list identify which are internal hardware devices and which are external hardware:MousemotherboardprocessorROMkeyboardVideo cardinternal hard diskRAMprintersound cardSystem software is a suite of programs that includes the operating system device drivers and utilitiesExplain why all computers or devices need an operating systemIs a device driver hardware or softwareWhen a printer is attached or linked to a computer system, a device driver is loaded. Explain what the purpose of a device driver is.Give two tasks that are performed by utility softwareGive two advantages of a fixed magnetic hard disc compared to an optical disc to store data.Identify two devices which are used in control systems to output data.The pupils want to record themselves speaking. Their voices will be added to the presentation. They will need to listen to their voices to make sure the presentation is of good quality. Name two devices which they will need to use to do this.Most school computer networks have a router and switches. Explain what is meant by a switch.Describe the purpose of a router.Banks keep their customer account records on their file servers. Describe three ways in which hackers could misuse this data.Describe the purpose of three different authentication techniques.Describe two advantages of using networked computers.Describe three disadvantages of using networked computers.Discuss the advantages and disadvantages of using these laptop computers compared with using cabled desktop computers.Discuss the advantages and disadvantages to customers of Internet shopping compared to visiting stores to do their shopping.A car company has decided to develop an expert system to help mechanics with their diagnoses of car faults. Describe steps required in the analysis and design of such a system.Name two other applications which involve the use of expert systems.Many workers now use computers a lot in their work and this can cause them to suffer from RSI. Name two other possible health problems and for each one describe a different precaution which could be taken to help prevent it.The type of processing used for processing bank cheques is calledThe type of access used on a magnetic hard disc is calledAn item of hardware which is used to open windows is called aExplain what is meant by SpamDescribe how web pages can be used to trick users into giving personal informationAlfonso’s family has three computers. He wants each member of his family to be able to access internet shopping. Identify three items of hardware he may need to purchase in order to setup a computer network that will enable this to happen.Alfonso’s teenage daughter uses her computer to create and send work to school.Describe three other ways she could make appropriate use of the internet.Describe a strategy that Alfonso’s daughter could use to back up her school workThe bank that Alfonso uses only requires customers to log into their account by inputting a user id and password.Explain why this is not very secure and discuss other ways the bank could identify the customer rmation on the label of a supermarket productdebit card details input at an ATMDescribe three types of medical aid which can be produced using a 3D printer.Explain what is meant by GPSGive two examples of the use of GPSCompare and contrast the use of magnetic tapes with removable magnetic disks to make network server backups.Johann is going on holiday to a different country. He will need to take his passport. He has a new type of passport which has an RFID chip in it. He will be passing through automated passport control gates. Describe what an RFID chip consists of.Describe how RFID will be used as he passes through passport controlDescribe the differences between RAM and ROMA school has a cabled LAN. The head teacher of the school wants to replace it with a WLAN. Explain the differences between a cabled LAN and a WLAN, giving two advantages and two disadvantages of having a WLAN.Describe the differences between physical safety and e-safety when using computersDescribe three measures which should be taken in order to maintain e-safetyThere are many microprocessor controlled devices in the modern home. Discuss the effects of these on people’s lifestylesMulti-national companies often use video-conferencing. Discuss the advantages and disadvantages of holding video-conferences rather than face-to-face meetingsA new system has to be tested before it can be implemented. A variety of test data is used.Name the following types of test data. Data that is outside the boundaries of acceptabilityData that is on the boundary of acceptabilityData that has been used before and has known outcomesExplain the meaning of the following terms used in document production.Gutter........................................................................................................................................ .................................................................................................................................................. Header...................................................................................................................................... .................................................................................................................................................. Widow....................................................................................................................................... .................................................................................................................................................. WrappingThecityofVeniceisindangerofbeingdamagedduetorisingsealevels.Anewcomputercontrolled flood defence system is being planned. The developers of the system are using a spreadsheet to model the plan.Give three reasons why computer models are used to simulate the flood defence systemThe city uses a manual system for detecting flood waters. This relies on people watching for the rising levels of water.Explain why creating a computerised system is better than using the manual systemThe developers have used the results from the model to choose a computer controlled flood defence system. It will have a barrier which can open or close.Describe the role of the microprocessor in such a system ................
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