PPSC Computer Science Test 01 December 23, 2020November 22, 2020 by Muhammad Shahid Azeem 0% Good Luck PPSC Computer Science Quiz PPSC Computer Science Test 01 1 / 40 Category: PPSC Computer Science Chapter 01 What is a light pen? Optical input device Optical output device Electronic input device A Mechanical Input device 2 / 40 Category: PPSC Computer Science Chapter 01 What is a correct association between hardware and component type? Projector-Input device Speaker- output device. Memory-Input device Plotter-Storage device 3 / 40 Category: PPSC Computer Science Chapter 01 The output quality of a printer is measured by All of These Dots printed per unit time Dot per sq. inch Dots per page 4 / 40 Category: PPSC Computer Science Chapter 01 Device with a rotating ball to control pointer is _________ Touchpad Optical mouse Sensitive screen Track ball 5 / 40 Category: PPSC Computer Science Chapter 01 The smallest unit of data is: byte bit Megabyte Kilo byte 6 / 40 Category: PPSC Computer Science Chapter 01 Resolution means Rate of change of images Pixels per square inch Distance between two pixels Colors per square inch 7 / 40 Category: PPSC Computer Science Chapter 01 The prefix Kilo stands for 1024 512 1000 10000 8 / 40 Category: PPSC Computer Science Chapter 01 UNIVAC is------? Universal Automatic Computer Unique Automatic Computer Unvalued Automatic Computer Universal Array Computer 9 / 40 Category: PPSC Computer Science Chapter 01 A device used for video games, flight simulators, training simulators and for controlling industrial robots. Joystick Light pen Mouse Keyboard 10 / 40 Category: PPSC Computer Science Chapter 01 Common device that is used to enter letters, numbers and command ? Optical Mouse Sensitive Screen or touch screen USB Keyboard 11 / 40 Category: PPSC Computer Science Chapter 01 1 petabyte = ______________ 1024 TB 1024 KB 1024 EB 1024 MB 12 / 40 Category: PPSC Computer Science Chapter 01 Which of the following is not an output device of a computer? VDU(Visual Display Unit) Printer CRT screen Keyboard 13 / 40 Category: PPSC Computer Science Chapter 01 Which system can read special characters printed in special ink? Optical Scanner MICR OMR OCR 14 / 40 Category: PPSC Computer Science Chapter 01 The first ever processor was? Intel 4004 Intel 8086 Intel 8080 Apple Mac Chip 15 / 40 Category: PPSC Computer Science Chapter 01 Default pointing device of a laptop is _________ Sensitive screen Touchpad Light Pen Optical mouse 16 / 40 Category: PPSC Computer Science Chapter 01 What type of operating system MS-DOS is? Menu Driven Interface Multitasking CLI GUI 17 / 40 Category: PPSC Computer Science Chapter 01 1 yottabyte = _____________ 1024 TB 1024 ZB 1024 KB 1024 GB 18 / 40 Category: PPSC Computer Science Chapter 01 Who designed the first electronics computer – ENIAC? Presper Eckert and John W Mauchly Joseph M. Jacquard Von-Neumann George Boole 19 / 40 Category: PPSC Computer Science Chapter 01 Display Screens receives information as an analog signal through a Video Card Electronic Chip Digital Camera Memory Card 20 / 40 Category: PPSC Computer Science Chapter 01 __________ is called the father of modern digital computer? Atnasoff and berry Leibnitz Charles Babbage Blais Pascal 21 / 40 Category: PPSC Computer Science Chapter 01 Computer system is made up with hardware and ________ Physical devices Silicon chips Data Software 22 / 40 Category: PPSC Computer Science Chapter 01 Which is the main memory of computer? Hard Disk RAM Floppy Drive DVD 23 / 40 Category: PPSC Computer Science Chapter 01 Which output device of a computer used for producing highly accurate, very large drawings and poster? Inkjet printers dot matrix printer Laser printers Plotter 24 / 40 Category: PPSC Computer Science Chapter 01 The main function of computer is Save information into storage Create data from information Convert data into information Display data 25 / 40 Category: PPSC Computer Science Chapter 01 Distance between two pixels is called __________ Resolution Aspect Ratio Dot pitch Refresh rate 26 / 40 Category: PPSC Computer Science Chapter 01 1 gigabyte = ______________ 1024 TB 1024 EB 1024 KB 1024 MB 27 / 40 Category: PPSC Computer Science Chapter 01 What technology is used in third generation computers? IC Microprocessor Transistors Vacuum Tube 28 / 40 Category: PPSC Computer Science Chapter 01 What technology is used in first generation computers? IC Transistors Microprocessor Vacuum Tube 29 / 40 Category: PPSC Computer Science Chapter 01 The prefix Mega stands for________?Symbol ( ^ ) means Power 2^20 2^410 2^30 2^10 30 / 40 Category: PPSC Computer Science Chapter 01 During______ data and instructions are entered into computer Programming Processing Input Output 31 / 40 Category: PPSC Computer Science Chapter 01 Raw fact and figures about any object is called Data Processing None of These Information Nice!! 32 / 40 Category: PPSC Computer Science Chapter 01 Which one is Digital device, select from the choices below? Automobile speed meter All of them Clock with a dial and three hands Digital Clock 33 / 40 Category: PPSC Computer Science Chapter 01 Which is used with stylus to produce freehand drawings? Light pen Drawing pen Reflector Graphic tablets 34 / 40 Category: PPSC Computer Science Chapter 01 _____ controls the process of interaction between the user and the operating system? Language translator Screen saver Platform User interface 35 / 40 Category: PPSC Computer Science Chapter 01 Universal Product codes (UPC) is used to identify All of These Manufacturer of Product Name of product Price of product 36 / 40 Category: PPSC Computer Science Chapter 01 A type of application software that is free to use for ever is called Product Line Software Shareware Customized Application Freeware 37 / 40 Category: PPSC Computer Science Chapter 01 Which system can read special characters printed in special ink? OCR Optical Scanner MICR OMR 38 / 40 Category: PPSC Computer Science Chapter 01 The process of producing useful information for the user is called ________ Controlling Output Processing Input 39 / 40 Category: PPSC Computer Science Chapter 01 A pen shaped device which can sense light, and is used to point at spots on a video screen. Light pen Plotter Joy stick Mouse 40 / 40 Category: PPSC Computer Science Chapter 01 ALU is------? Array Logic Unit Arithmetic Logic Unit Application Logic Unit None of above Your score is LinkedIn Facebook Twitter VKontakte 0%
