Instructions and its guiding philosophy
Instructions are framed to guide the customers from distractions and to understand the operating system of the piece of equipment designed by the company. here there are instructions to provide a piece of suitable information for safe handling. It’s the duty of the manufacturer to provide instructions and guidance to reach their products to the people. It protects the customer from risk assessment and to prevent us from hazards.
Instructions for Medical devices
Medical devices are complex to handle on their own, so it needs an instruction manual to handle them safely. Trainees and the medical students refer to these instructions to handle the objects properly. Hence it is considered a part of the user’s life. Good instruction must speak to the user, teach the learner and also guide the freshers. Instructions are framed according to the targeted audience and also to the types of equipment. Common instructions are not suitable for all the materials. Suitable instructions must be given according to the field of research and users.
Design Usable Instructions
Instructions should be very short and crisp to understand. Present the action one by one in steps so that it is easier to follow. It has to give the expected result, it gives a prominence among the users. Start with negatives like Don’t and Avoid eg: Don’t Switch on before fitting. Instructions must help in identifying the risk and consequences of the result. Abbreviations should not be used. Provide necessary images to have an outlook on the types of equipment. Font size should vary according to the content. Add more pieces of information only when it is needed. The use of symbols is encouraged to give a proper action.
Effective texts are used for reading and simple language is used for understanding. It helps the participants to perform the functions step by step to complete the process of working. The content and layout help them in handling the instrument safely. Pictures, tables, numbers and highlighted texts are used to guide the user in testing the products. The user must avoid the confusion of the designs used in the manuals. They must understand clearly and then they have performed. It is in the hands of the user to handle the machine by following the instructions correctly in order.
Instruction for computers
It is designed by a system language it performs with the help of codes. All the operations are done with the help of a specific code. It has a specific address field to find out the location and memory. Mode helps in specifying the operand. There are 3 types of instruction codes.
Memory- reference instruction
It uses 12 bits of memory and one for “I”, the addressing mode.
Register- Reference Instruction
It is insisted by the operation code 111 and 0 in the 15 leftmost bit of instruction. It is specially designed for the accumulator register.
It also followed by 111 code with 1 in the leftmost bit of instruction. The remaining 12 bits are used for testing purposes. The codes ranging from 12 to 14 should be equal to 111, then the control unit inspects the bit in position 15.
It also needs arithmetic, logic and shifts instructions. Moving instructions are needed from memory and process register. It also checks the status that is the condition of the input and output instructions. It acts as an intermediator of computer and user.