CDI PCED Test Questions and Answers 100% Solved

EDPM Test Questions Solved Correctly Latest Update 2025 Graded A+ keyboard - Answers Enters commands and textual data into the computer system. Mouse - Answers Position the cursor on a computer screen to manipulate objects microphone - Answers Enter sounds into the computer system Scannerr - Answers Convert hard copy into digital form PC webcam - Answers To capture images and sound bar code reader - Answers An optical reader that can read bar codes. Optical character reader - Answers To capture handwritten or printed text Touch screen - Answers To allow input from the screen Printer - Answers To produce printed copies of documents on a range of stationery Monitor - Answers To display the operating systems desktop Multimedia Projector - Answers A device connect to a computer to present information in a bigger size. Speakers - Answers To allow playback of audio from applications and to provide audible alerts produced by the operating system and application software Touchscreen - Answers To allow input and output direct from screen CD-ROM - Answers compact disc-read-only memory stores data that can be read by a computer. It is not writable and used to distribute computer software CD-R - Answers A compact disk on which you can write only once and thereafter is read-only memory. Compact Disk Recordable is variation of CD-ROM and is sometimes called the burner CD-RW - Answers A CD that allows data to be erased and written again several times. DVD - Answers Stores more data than CD. Used for video and data storage and to back up data stored in flash drives Flash drive - Answers A 'thumb sized' devices used as a USB connectors. 4G,8G and 16G Memory card - Answers Used in devices such as cameras Mouse benefit - Answers Users are more efficient as task can be completed accurately Scanner - Answers Converts printed documents to digital formatZ Converts text on documents to editable text. Converts images of documents such as receipts photographs and diagrams to digital format. digital camera - Answers Captures still images and video Scanner Benefit - Answers Reduced cost as digital versions of physical documents Digital Camera benefit - Answers Pictures can be captured by office staff rather then professional photographers PC camera - Answers Users in remote locations can see each other Database Management System (DBMS) - Answers Microsoft Access Open Office Base Electronic Spreadsheet - Answers Microsoft excel, IBM Lotus Email - Answers Microsoft outlook express, Mozilla Thunderbird Presentation Graphics - Answers Microsoft power point, Prezi keynote Web Browsers - Answers Microsoft Explorer, Safari, Google Chrome word processor - Answers Microsoft word, Corel Word Open Office Writer RAM - Answers Random Access Memory is temporary and is lost when the computer is turned off (data is volatile). Random Access Memory - Answers Is used to store instructions and data for currently running programs and operating systems. ROM - Answers Read Only Memory data is stored and not lost when computer is turned off (data is non volatile). Read Only Memory - Answers Is used for commands such as boot up Secondary Storage Devices - Answers Storage devices hold data, even when the computer is turned off and programs and data not being processed. Until needed for later retrieval. Examples of secondary storage devices - Answers Hard disk Magnetic tape Floppy disk Microfilm Cds DVD. CPU (Central Processing Unit) - Answers This is located on the main processor board ( the motherboard) Random Access Memory (RAM) - Answers Any data can be accessed when needed. Contents can be read,written and changed. Read Only Memory (ROM) - Answers Contents of ROM are usually programmed by manufacturers therefore can only be read and not changed. Used to store commands executed when computer is turned on. PROM (Programmable Read-Only Memory) - Answers Can be programmed with a special machine. Once programmed it cannot be changed. EPROM (erasable programmable read only memory) - Answers Contents can be earned using ultra violet light. Then the chip can then be reprogrammed several times. Although contents do not last as long as a PROM.