Test 2 Review (ch3 5 6)

Test 2 Review (ch3 5 6) - Chapter 3 Hardware 1 Input...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 3 Hardware 1. Input hardware: devices that are keyboards, mouse, document scanners 2. Processing hardware: central processing unit (CPU) a.k.a the “brain” of the computer; the CPU selects instructions, processes them, performs arithmetic/logical comparisons, and stores results of operations in memory a. The maximum speed at which it transfers data is determined by the speed of main memory and the speed/width of the data bus 3. Output hardware: video displays, printers, audio speakers, overhead projectors 4. Storage hardware: saves data and programs; Three types: magnetic disk (most popular), optical disk, magnetic tape (good for large corporate data centers) Binary Digits: computers represent data using binary digits called Bits. Bit : either a zero or a one; they are easy to represent physically; computers use bits for two purposes: instructions and data Instruction Set: the collection of instructions that a computer can process Bytes: bits are grouped into 8-bit chunks called bytes; they are used to measure sizes of non character data as well Motherboard : a circuit board upon which the processing components are mounted and/or connected Data Channel/Bus
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern