COMP104Lecture2/Slide6Input and Output DevicesAccessories that allow computer to interfacewith userCommoninputandoutputdevicesMouseScannerSpeakersPrinterJoystickCD-ROMKeyboardMicrophone福
COMP104 Lecture 2 / Slide 6 Input and Output Devices Accessories that allow computer to interface with user Common input and output devices ◼ Speakers Mouse Scanner ◼ Printer Joystick CD-ROM ◼ Keyboard Microphone
COMP104Lecture2/Slide7MemorySecondary Memoryrelatively stable storage (e.g. CD)slower retrieval timeoften allows sequential access onlyPrimaryMemorymainmemoryina computeraka random access memory, or RAMfaster(random)accesswith-transistortechnology- address location
COMP104 Lecture 2 / Slide 7 Memory Secondary Memory relatively stable storage (e.g. CD) slower retrieval time often allows sequential access only Primary Memory main memory in a computer aka random access memory, or RAM faster (random) access with − transistor technology − address location