Question

1)define low level programing language?
2)define input ?
3)define output?
4)how does the CPU works ?
5)what is ALU? define it's working?
6)what is CU?define it's working?
7)define MM?(RAM)
8)define secondary memory (ROM)
9)list any 2 input devices?
10)list any 2 output devices?

Answer 1

1.1 INTRODUCTION
In this lesson we present an overview of the basic design of a
computer system: how the different parts of a computer system
are organized and various operations performed to perform a
specific task. You would have observed that instructions have to
be fed into the computer in a systematic order to perform a
specific task. Computer components are divided into two major
categories, namely, hardware and software. In this lesson we will
discuss about hardware, i.e., the machine itself and its connected
devices such as monitor, keyboard, mouse etc., as well as
software that makes use of hardware for performing various
functions.
1.2 OBJECTIVES
After going through this lesson you would be able to:
l explain basic organization of computer system
l explain different types of input and output devices
l define Software and its classification
l distinguish between system software and application
software
l describe computer language and its classification

Answer 2

1 machine code
2 the means by which or the point at which an input
3 The amount of energy, work, goods, or services produced by a machine, factory, company, or an individual in a period
4 The computer does its primary work in a part of the machine we cannot see, a control center that converts data input to information output. This control center, called the central processing unit (CPU), is a highly complex, extensive set of electronic circuitry that executes stored program instructions.
5 An arithmetic logic unit (ALU) is a digital circuit used to perform arithmetic and logic operations. ... Modern CPUs contain very powerful and complex ALUs. In addition to ALUs, modern CPUs contain a control unit (CU). Most of the operations of a CPU are performed by one or more AL
Us, which load data from input registers.
6 The control unit (CU) is a component of a computer's central processing unit (CPU) that directs the operation of the processor. It tells the computer's memory, arithmetic/logic unit and input and output devices how to respond to a program's instructions
7 to hit or push something with force.
8 It cannot be processed directly by the CPU. It must first be copied into primary storage (also known as RAM).Secondary memory devices include magnetic disks like hard drives and floppy disks ; optical disks such as CDs and CDROMs ; and magnetic tapes, which were the first forms ofsecondary memory.
9 Keyboard.
Image scanner.
10 headphones
speaker