(computer science) the mechanical, magnetic, electronic, and electrical components making up a computer system | the act of improving something (especially machinery) by raising it to a higher grade (as by adding or replacing components) |
| hardware that provides better performance than an earlier version did |
| the property possessed by a slope or surface that rises |
| a reservation that is improved |
| software that provides better performance than an earlier version did |
| an upward slope or grade (as in a road) |